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  • Killer content for my Kindle - The Economist with no need for an iPad - yipeee!

    - by Liam Westley
    I admin it, I was jealous of someone's iPad. They were reading The Economist, for free, as they were a print subscriber. I'm a print subscriber too. However, I don't have an iPad or an iPhone, just an Android phone and a Kindle. As soon as I got the Kindle, I looked up how to get The Economist on it. £9.99 per month. Hmmm, twice as much again as a my print subscription and I wanted to maintain the print subscription. No way Amazon. Fortunately some nice person wrote similar comments on The Economist subscription for Kindle, but added a very important additional nugget of information; and there is no need, as a print subscriber you can just use the free Calibre e-book creation tool anyway. So I downloaded it, searched for The Economist online 'recipe', entered my login name and password (part of my print subscription) and off went Calibre to screen scrape every single article from the Christmas 2010 issue into a .mobi file, complete with front cover image and full indexing. It's wonderful. Truely wonderful. Every section individually indexed, with each article separated and all inline images preserved. It even feels wonderfully retro, back to the days when The Economist only used black and white images. So many thanks the guys behind Calibre and The Economist recipe creators. Finally, I have my essential Kindle content that I've been waiting for.

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  • Perl: Negative look behind regex question [migrated]

    - by James
    The Perlre in Perldoc didn't go into much detail on negative look around but I tried testing it, and didn't work as expected. I want to see if I can differentiate a C preprocessor macro definition (e.g. #define MAX(X) ....) from actual usage (y = MAX(x);), but it didn't work as expected. my $macroName = 'MAX'; my $macroCall = "y = MAX(X);"; my $macroDef = "# define MAX(X)"; my $boundary = qr{\b$macroName\b}; my $bstr = " MAX(X)"; if($bstr =~ /$boundary/) { print "boundary: $bstr matches: $boundary\n"; } else { print "Error: no match: boundary: $bstr, $boundary\n"; } my $negLookBehind = qr{(?<!define)\b$macroName\b}; if($macroCall =~ /$negLookBehind/) # "y = MAX(X)" matches "(?<!define)\bMAX\b" { print "negative look behind: $macroCall matches: $negLookBehind\n"; } else { print "no match: negative look behind: $macroCall, $negLookBehind\n"; } if($macroDef =~ /$negLookBehind/) # "#define MAX(X)" should not match "(?<!define)\bMAX\b" { print "Error: negative look behind: $macroDef matches: $negLookBehind\n"; } else { print "no match: negative look behind: $macroDef, $negLookBehind\n"; } It seems that both $macroDef and $macroCall seem to match regex /(?<!define)\b$macroName\b/. I backed off from the original /(?<\#)\s*(?<!define)\b$macroName\b/ since that didn't work either. So what did I screw up? Also does Perl allow chaining of multiple look around expressions?

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  • Expected time for lazy evaluation with nested functions?

    - by Matt_JD
    A colleague and I are doing a free R course, although I believe this is a more general lazy evaluation issue, and have found a scenario that we have discussed briefly and I'd like to find out the answer from a wider community. The scenario is as follows (pseudo code): wrapper => function(thing) { print => function() { write(thing) } } v = createThing(1, 2, 3) w = wrapper(v) v = createThing(4, 5, 6) w.print() // Will print 4, 5, 6 thing. v = create(7, 8, 9) w.print() // Will print 4, 5, 6 because "thing" has now been evaluated. Another similar situation is as follows: // Using the same function as above v = createThing(1, 2, 3) v = wrapper(v) w.print() // The wrapper function incestuously includes itself. Now I understand why this happens but where my colleague and I differ is on what should happen. My colleague's view is that this is a bug and the evaluation of the passed in argument should be forced at the point it is passed in so that the returned "w" function is fixed. My view is that I would prefer his option myself, but that I realise that the situation we are encountering is down to lazy evaluation and this is just how it works and is more a quirk than a bug. I am not actually sure of what would be expected, hence the reason I am asking this question. I think that function comments could express what will happen, or leave it to be very lazy, and if the coder using the function wants the argument evaluated then they can force it before passing it in. So, when working with lazy evaulation, what is the practice for the time to evaluate an argument passed, and stored, inside a function?

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  • How can I print lines that match a pattern in Perl?

    - by kivien
    Assuming the file.txt having just one sentence per line as follows:- John Depp is a great guy. He is very inteligent. He can do anything. Come and meet John Depp. The perl code is as follows:- open ( FILE, "file.txt" ) || die "can't open file!"; @lines = <FILE>; close (FILE); $string = "John Depp"; foreach $line (@lines) { if ($line =~ $string) { print "$line"; } } The output is going to be first and fourth line. I want to make it working for the file having random line breaks rather than one English sentence per line. I mean it should also work for the following:- John Depp is a great guy. He is very inteligent. He can do anything. Come and meet John Depp. The output should be first and fourth sentence. Any ideas please?

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  • how i print the values from NSArray objects in CGContextShowTextAtpoint()?

    - by Rajendra Bhole
    Hi, I developing an application in which i want to print the values on a line interval, for that i used NSArray with multiple objects and those object i passing into CGContextShowTextAtPoint() method. The code is. CGContextMoveToPoint(ctx, 30.0, 200.0); CGContextAddLineToPoint(ctx, 30.0, 440.0); NSArray *hoursInDays = [[NSArray alloc] initWithObjects:@"0",@"1",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",@"11",@"12", nil]; int intHoursInDays = 0; for(float y = 400.0; y >= 200.0; y-=18, intHoursInDays++) { CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextMoveToPoint(ctx, 28, y); CGContextAddLineToPoint(ctx, 32, y); CGContextSelectFont(ctx, "Helvetica", 12.0, kCGEncodingMacRoman); CGContextSetTextDrawingMode(ctx, kCGTextFill); CGContextSetRGBFillColor(ctx, 0, 255, 255, 1); CGAffineTransform xform = CGAffineTransformMake( 1.0, 0.0, 0.0, -1.0, 0.0, 0.0); CGContextSetTextMatrix(ctx, xform); NSString *arrayDataForYAxis = [hoursInDays objectAtIndex:intHoursInDays]; CGContextShowTextAtPoint(ctx, 10.0, y+20, [arrayDataForYAxis UTF8String], strlen((char *)arrayDataForYAxis)); CGContextStrokePath(ctx); } The above code is executed but it given me output is {oo, 1o,2o,...........11}, i want the output is {0,1,2,3...........11,12}. The above code given me one extra character "o" after single digit.I think the problem i meet near the parameters type casting of 5th parameter inside the method of CGContextShowTextAtpoint CGContextShowTextAtpoint(). How i resolve the problem of type casting for printing the objects of NSSArray in CGContextShowTextAtpoint() method??????????????

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  • how I can print WPF treeview items over multiple pages?

    - by RAJKISHOR
    Hello friend, I want to print tree structure showing in WPF treeview control in multiple page. I tried PrintVisual() but it only prints only visible parts. Then I tried FlowDocument and written AddNode(), but its not showing the same result as treeview doimg. Please help me with code. public void AddNodes(int uid, ListItem tSubNode) { string query = "select fullname, id from members where refCode=" + uid + ";"; String memValue; MySqlCommand cmd = new MySqlCommand(query, db.conn); MySqlDataAdapter _DA = new MySqlDataAdapter(cmd); DataTable _DT = new DataTable(); _DA.Fill(_DT); ListOffset += 20; foreach (DataRow _dr in _DT.Rows) { ListItem tNode = new ListItem(); tNode.Margin = new Thickness(ListOffset,0,0,0); memValue = _dr["fullname"].ToString() + " (" + _dr["id"].ToString() + ")"; tNode.Blocks.Add(new Paragraph(new Run(hyp+memValue))); myList.ListItems.Add(tNode); flowDoc.Blocks.Add(myList); _fdrMembers.Document = flowDoc; if (db.HasMembers(Convert.ToInt32(_dr["id"].ToString()))) { AddNodes(Convert.ToInt32(_dr["id"]), tNode); } } ListOffset = 20; } private void button_Click(object sender, RoutedEventArgs e) { ListOffset = 0; myList.ListItems.Clear(); tSuper.Blocks.Clear(); if (db.GetNameByUID(100001) != null) { tSuper.Blocks.Add(new Paragraph(new Run(db.GetNameByUID(100001)))); myList.ListItems.Add(tSuper); AddNodes(100001, tSuper); } MessageBox.Show("Member by ID - "+does.ToString()+", "+dosnt.ToString(), "Error!", MessageBoxButton.OK, MessageBoxImage.Information); }**strong text**

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  • How to print the address an ada access variable points to?

    - by georg
    I want to print the address of an access variable (pointer) for debugging purposes. type Node is private; type Node_Ptr is access Node; procedure foo(n: in out Node_Ptr) is package Address_Node is new System.Address_To_Access_Conversions(Node); use Address_Node; begin Put_Line("node at address " & System.Address_Image(To_Address(n))); end foo; Address_Image returns the string representation of an address. System.Address_To_Access_Conversions is a generic package to convert between addresses and access types (see ARM 13.7.2), defined as follows: generic type Object(<>) is limited private; package System.Address_To_Access_Conversions is -- [...] type Object_Pointer is access all Object; -- [...] function To_Address(Value : Object_Pointer) return Address; -- [...] end System.Address_To_Access_Conversions; gnat gives me the following errors for procedure foo defined above: expected type "System.Address_To_Access_Conversions.Object_Pointer" from instance at line... found type "Node_Ptr" defined at ... Object_Pointer ist definied as access all Object. From my understanding the type Object is Node, therefore Object_Ptr is access all Node. What is gnat complaining about? I guess my understanding of Ada generics is flawed and I am not using System.Address_To_Access_Conversions correctly. EDIT: I compiled my code with "gnatmake -gnatG" to see the generic instantiation: package address_node is subtype btree__clear__address_node__object__2 is btree__node; type btree__clear__address_node__object_pointer__2 is access all btree__clear__address_node__object__2; function to_address (value : btree__clear__address_node__object_pointer__2) return system__address; end address_node; btree__node is the mangled name of the type Node as defined above, so I really think the parameter type for to_address() is correct, yet gnat is complaining (see above).

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  • Are there any thead limitations that make it not print on each page in Firefox?

    - by SeanJA
    I have a table that has a <thead>, a <tfoot> and a <tbody>. It is supposed to print the thead and tfoot on each page in theory, but for some reason the thead does not if it contains certain elements together. This works: <thead> <tr> <td colspan="3">This works</td> <tr> <tr> <th colspan="2">column 1</th> <th> column 2 </th> </tr> </thead> This does not seem to work: <thead> <tr> <td colspan="3"> <h2>Header</h2> <address> <strong>address 1</strong> <br /> address 2 <br /> address 3 <br /> </address> <img src="/images/logo.png" alt="Logo" /> <h2>Another header</h2> <hr /> </td> </tr> <tr> <th colspan="2">column 1</th> <th> column 2 </th> </tr> </thead> Is there a reason for this not to work?

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  • C programming - How to print numbers with a decimal component using only loops?

    - by californiagrown
    I'm currently taking a basic intro to C programming class, and for our current assignment I am to write a program to convert the number of kilometers to miles using loops--no if-else, switch statements, or any other construct we haven't learned yet are allowed. So basically we can only use loops and some operators. The program will generate three identical tables (starting from 1 kilometer through the input value) for one number input using the while loop for the first set of calculations, the for loop for the second, and the do loop for the third. I've written the entire program, however I'm having a bit of a problem with getting it to recognize an input with a decimal component. Here is what I have for the while loop conversions: #include <stdio.h> #define KM_TO_MILE .62 main (void) { double km, mi, count; printf ("This program converts kilometers to miles.\n"); do { printf ("\nEnter a positive non-zero number"); printf (" of kilometers of the race: "); scanf ("%lf", &km); getchar(); }while (km <= 1); printf ("\n KILOMETERS MILES (while loop)\n"); printf (" ========== =====\n"); count = 1; while (count <= km) { mi = KM_TO_MILE * count; printf ("%8.3lf %14.3lf\n", count, mi); ++count; } getchar(); } The code reads in and converts integers fine, but because the increment only increases by 1 it won't print a number with a decimal component (e.g. 3.2, 22.6, etc.). Can someone point me in the right direction on this? I'd really appreciate any help! :)

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  • Tweak Conky Layout via a script

    - by begtognen
    I'm using a script in Conky in order to display my new gmail on my desktop. It works beautifully, but is kind of ugly, and I'm not sure how to fix it. What I've currently got looks like this: And what I'd like is this: Any ideas for how to make that happen are much appreciated. Here's the script I'm currently using (I think I've snipped out the correct part, if I haven't please let me know.) #!/usr/bin/perl use Switch; use Text::Wrap; my $what=$ARGV[0]; $user="username"; #username for gmail account $pass="password"; #password for gmail account $file="/tmp/gmail.html"; #temporary file to store gmail #wrap format for subject $Text::Wrap::columns=65; #Number of columns to wrap subject at $initial_tab=""; #Tab for first line of subject $subsequent_tab="\t"; #tab for wrapped lines $quote="\""; #put quotes around subject #limit the number of emails to be displayed $emails=-1; #if -1 display all emails &passwd; #give password the proper url character encoding switch($what){ #determine what the user wants case "n" {&gmail; print "$new\n";} #print number of new emails case "s" { #print $from and $subj for new email &gmail; if ($new0){ my $size=@from; if ($emails!=-1 && $size$emails){$size=$emails;} #limit number of emails displayed for(my $i=0; $i$emails){print "$emails out of $size new emails displayed\n";} } } case "e" { #print number of new emails, $from, and $subj &gmail; if($new==0){print "You have no new emails.\n";} else{ print "You have $new new email(s).\n"; my $size=@from; if ($emails!=-1 && $size$emails){$size=$emails;} #limit number of emails displayed for(my $i=0; $i$emails){print "$emails out of $size new emails displayed\n";} } } else { print "Usage Error: gmail.pl \n"; print "\tn displays number of new emails\n"; print "\ts displays from line and subject line for each new email.\n"; print "\te displays the number of new emails and from line plus \n"; print "\t\tsubject line for each new email.\n"; } #didn't give proper option } sub gmail{ if(!(-e $file)){ #create file if it does not exists `touch $file`; } #get new emails `wget -O - https://$user:$pass\@mail.google.com/mail/feed/atom --no-check-certificate $file`; open(IN, $file); #open $file my $i=0; #initialize count $new=0; #initialize new emails to 0 my $flag=0; while(){ #cycle through $file if(//){$flag=1;} elsif(/(\d+)/){$new=$1;} #grab number of new emails elsif($flag==1){ if(/.+/){push(@subj, &msg);} #grab new email titles elsif(/(.+)/){push(@from, $1); $flag=0;} #grab new email from lines } } close(IN); #close $file } sub passwd{ #change to url escape codes in password #URL ESCAPE CODES $_=$pass; s/\%/\%25/g; s/\#/\%23/g; s/\$/\%24/g; s/\&/\%26/g; s/\//\%2F/g; s/\:/\%3A/g; s/\;/\%3B/g; s/\/\%3E/g; s/\?/\%3F/g; s/\@/\%40/g; s/\[/\%5B/g; s/\\/\%5C/g; s/\]/\%5D/g; s/\^/\%5E/g; s/\`/\%60/g; s/\{/\%7B/g; s/\|/\%7C/g; s/\}/\%7D/g; s/\~/\%7E/g; $pass=$_; } sub msg{ #THE HTML CODED CHARACTER SET [ISO-8859-1] chomp; s/(.+)/$1/; #get just the subject #now replace any special characters s/\&\#33\;/!/g; #Exclamation mark s/\&\#34\;/"/g; s/\"\;/"/g; #Quotation mark s/\&\#35\;/#/g; #Number sign s/\&\#36\;/\$/g; #Dollar sign s/\&\#37\;/%/g; #Percent sign s/\&\#38\;/&/g; s/\&\;/&/g; #Ampersand s/\&\#39\;/'/g; #Apostrophe s/\&\#40\;/(/g; #Left parenthesis s/\&\#41\;/)/g; #Right parenthesis s/\&\#42\;/*/g; #Asterisk s/\&\#43\;/+/g; #Plus sign s/\&\#44\;/,/g; #Comma s/\&\#45\;/-/g; #Hyphen s/\&\#46\;/./g; #Period (fullstop) s/\&\#47\;/\//g; #Solidus (slash) s/\&\#58\;/:/g; #Colon s/\&\#59\;/\;/g; #Semi-colon s/\&\#60\;//g; s/\>\;//g; #Greater than s/\&\#63\;/\?/g; #Question mark s/\&\#64\;/\@/g; #Commercial at s/\&\#91\;/\[/g; #Left square bracket s/\&\#92\;/\\/g; #Reverse solidus (backslash) s/\&\#93\;/\]/g; #Right square bracket s/\&\#94\;/\^/g; #Caret s/\&\#95\;/_/g; #Horizontal bar (underscore) s/\&\#96\;/\`/g; #Acute accent s/\&\#123\;/\{/g; #Left curly brace s/\&\#124\;/|/g; #Vertical bar s/\&\#125\;/\}/g; #Right curly brace s/\&\#126\;/~/g; #Tilde s/\&\#161\;/¡/g; #Inverted exclamation s/\&\#162\;/¢/g; #Cent sign s/\&\#163\;/£/g; #Pound sterling s/\&\#164\;/¤/g; #General currency sign s/\&\#165\;/¥/g; #Yen sign s/\&\#166\;/¦/g; #Broken vertical bar s/\&\#167\;/§/g; #Section sign s/\&\#168\;/¨/g; #Umlaut (dieresis) s/\&\#169\;/©/g; s/\©\;/©/g; #Copyright s/\&\#170\;/ª/g; #Feminine ordinal s/\&\#171\;/«/g; #Left angle quote, guillemotleft s/\&\#172\;/¬/g; #Not sign s/\&\#174\;/®/g; #Registered trademark s/\&\#175\;/¯/g; #Macron accent s/\&\#176\;/°/g; #Degree sign s/\&\#177\;/±/g; #Plus or minus s/\&\#178\;/²/g; #Superscript two s/\&\#179\;/³/g; #Superscript three s/\&\#180\;/´/g; #Acute accent s/\&\#181\;/µ/g; #Micro sign s/\&\#182\;/¶/g; #Paragraph sign s/\&\#183\;/·/g; #Middle dot s/\&\#184\;/¸/g; #Cedilla s/\&\#185\;/¹/g; #Superscript one s/\&\#186\;/º/g; #Masculine ordinal s/\&\#187\;/»/g; #Right angle quote, guillemotright s/\&\#188\;/¼/g; s/\¼\;/¼/g; # Fraction one-fourth s/\&\#189\;/½/g; s/\½\;/½/g; # Fraction one-half s/\&\#190\;/¾/g; s/\¾\;/¾/g; # Fraction three-fourths s/\&\#191\;/¿/g; #Inverted question mark s/\&\#192\;/À/g; #Capital A, grave accent s/\&\#193\;/Á/g; #Capital A, acute accent s/\&\#194\;/Â/g; #Capital A, circumflex accent s/\&\#195\;/Ã/g; #Capital A, tilde s/\&\#196\;/Ä/g; #Capital A, dieresis or umlaut mark s/\&\#197\;/Å/g; #Capital A, ring s/\&\#198\;/Æ/g; #Capital AE dipthong (ligature) s/\&\#199\;/Ç/g; #Capital C, cedilla s/\&\#200\;/È/g; #Capital E, grave accent s/\&\#201\;/É/g; #Capital E, acute accent s/\&\#202\;/Ê/g; #Capital E, circumflex accent s/\&\#203\;/Ë/g; #Capital E, dieresis or umlaut mark s/\&\#204\;/Ì/g; #Capital I, grave accent s/\&\#205\;/Í/g; #Capital I, acute accent s/\&\#206\;/Î/g; #Capital I, circumflex accent s/\&\#207\;/Ï/g; #Capital I, dieresis or umlaut mark s/\&\#208\;/Ð/g; #Capital Eth, Icelandic s/\&\#209\;/Ñ/g; #Capital N, tilde s/\&\#210\;/Ò/g; #Capital O, grave accent s/\&\#211\;/Ó/g; #Capital O, acute accent s/\&\#212\;/Ô/g; #Capital O, circumflex accent s/\&\#213\;/Õ/g; #Capital O, tilde s/\&\#214\;/Ö/g; #Capital O, dieresis or umlaut mark s/\&\#215\;/×/g; #Multiply sign s/\&\#216\;/Ø/g; #Capital O, slash s/\&\#217\;/Ù/g; #Capital U, grave accent s/\&\#218\;/Ú/g; #Capital U, acute accent s/\&\#219\;/Û/g; #Capital U, circumflex accent s/\&\#220\;/Ü/g; #Capital U, dieresis or umlaut mark s/\&\#221\;/Ý/g; #Capital Y, acute accent s/\&\#222\;/Þ/g; #Capital THORN, Icelandic s/\&\#223\;/ß/g; #Small sharp s, German (sz ligature) s/\&\#224\;/à/g; #Small a, grave accent s/\&\#225\;/á/g; #Small a, acute accent s/\&\#226\;/â/g; #Small a, circumflex accent s/\&\#227\;/ã/g; #Small a, tilde s/\&\#228\;/ä/g; #Small a, dieresis or umlaut mark s/\&\#229\;/å/g; #Small a, ring s/\&\#230\;/æ/g; #Small ae dipthong (ligature) s/\&\#231\;/ç/g; #Small c, cedilla s/\&\#232\;/è/g; #Small e, grave accent s/\&\#233\;/é/g; #Small e, acute accent s/\&\#234\;/ê/g; #Small e, circumflex accent s/\&\#235\;/ë/g; #Small e, dieresis or umlaut mark s/\&\#236\;/ì/g; #Small i, grave accent s/\&\#237\;/í/g; #Small i, acute accent s/\&\#238\;/î/g; #Small i, circumflex accent s/\&\#239\;/ï/g; #Small i, dieresis or umlaut mark s/\&\#240\;/ð/g; #Small eth, Icelandic s/\&\#241\;/ñ/g; #Small n, tilde s/\&\#242\;/ò/g; #Small o, grave accent s/\&\#243\;/ó/g; #Small o, acute accent s/\&\#244\;/ô/g; #Small o, circumflex accent s/\&\#245\;/õ/g; #Small o, tilde s/\&\#246\;/ö/g; #Small o, dieresis or umlaut mark s/\&\#247\;/÷/g; #Division sign s/\&\#248\;/ø/g; #Small o, slash s/\&\#249\;/ù/g; #Small u, grave accent s/\&\#250\;/ú/g; #Small u, acute accent s/\&\#251\;/û/g; #Small u, circumflex accent s/\&\#252\;/ü/g; #Small u, dieresis or umlaut mark s/\&\#253\;/ý/g; #Small y, acute accent s/\&\#254\;/þ/g; #Small thorn, Icelandic s/\&\#255\;/ÿ/g; #Small y, dieresis or umlaut mark s/^\s+//; return $_; }

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  • What is ODBC?

    According to Microsoft, ODBC is a specification for a database API.  This API is database and operating system agnostic due to the fact that the primary goal of the ODBC API is to be language-independent. Additionally, the open functions of the API are created by the manufactures of DBMS-specific drivers. Developers can use these exposed functions from within their own custom applications so that they can communicate with DBMS through the language-independent drivers. ODBC Advantages Multiple ODBC drivers for each DBSM Example Oracle’s ODBC Driver Merant’s Oracle Driver Microsoft’s Oracle Driver ODBC Drivers are constantly updated for the latest data types ODBC allows for more control when querying ODBC allows for Isolation Levels ODBC Disadvantages ODBC Requires DSN ODBC is the proxy between an application and a database ODBC is dependent on third party drivers ODBC Transaction Isolation Levels are related to and limited by the transaction management capabilities of the data source. Transaction isolation levels:  READ UNCOMMITTED Data is allowed to be read prior to the committing of a transaction.  READ COMMITTED Data is only accessible after a transaction has completed  REPEATABLE READ The same data value is read during the entire transaction  SERIALIZABLE Transactions have no effect on other transactions

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  • NVIDIA graphics driver on Macbook Pro 10,1

    - by Boatzart
    I just installed 14.04 over my old 12.04 partition on my Macbook Pro 10,1 (which is dual-booting with OS X) by following the instructions here. The only difference is that I'm using rEFInd instead of rEFIt. The proprietary NVIDIA drivers worked great with 12.04, but now I'm unable to boot into Unity with it in 14.04. Generally, I just get a black screen after the Grub menu, though occasionally I get some kind of panic screen like this, where I see errors like: [drm: __gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake old ack to clear. [drm: __gen6_gt_wait_for_thread_c0] *ERROR* GT thread status wait timed out [drm: __intel_ring_setup_status_page] *ERROR* render ring: wait for SyncFlush to complete for TLB invalidation timed out etc. Using the nouveau drivers works fine, but everything feels sluggish so I would really like to get the NVIDIA drivers working. Has anyone successfully gotten the NVIDIA drivers working with the GT-650M Mac Edition?

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  • UnsatisfiedLinkError on xawt when running HEC-HMS.sh

    - by G.Oxsen
    I am a recent adopter of Linux and this problem has got me stumped. I use HEC-HMS and HEC-DSSVue for work on a regular basis. I have been using the widows versions in wine but they are really buggy. So I decided to try out the linux versions. the links below will take you to the download pages for these two programs. They are free programs for Hydrology and data management. Once I install them and attempt to run the shell file (HEC-HMS.sh for example) I get a ton of java errors that I do not understand. If I had to guess I would say that the java files in question can not be found. When I check to see if java is installed it is. Here is the output from the terminal from trying to run HEC-HMS.sh: Exception in thread "Thread-1" java.lang.UnsatisfiedLinkError: /home/smythe/HEC/hec-hms35/java/lib/i386/xawt/libmawt.so: libXtst.so.6: cannot open shared object file: No such file or directory at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(Unknown Source) at java.lang.ClassLoader.loadLibrary(Unknown Source) at java.lang.Runtime.load0(Unknown Source) at java.lang.System.load(Unknown Source) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(Unknown Source) at java.lang.ClassLoader.loadLibrary(Unknown Source) at java.lang.Runtime.loadLibrary0(Unknown Source) at java.lang.System.loadLibrary(Unknown Source) at sun.security.action.LoadLibraryAction.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.awt.NativeLibLoader.loadLibraries(Unknown Source) at sun.awt.DebugHelper.<clinit>(Unknown Source) at java.awt.Component.<clinit>(Unknown Source) at javax.swing.ImageIcon.<clinit>(Unknown Source) at hms.i.c(Unknown Source) at hms.i.b(Unknown Source) at hms.K.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Exception in thread "Thread-4" java.lang.UnsatisfiedLinkError: /home/smythe/HEC/hec-hms35/java/lib/i386/xawt/libmawt.so: libXtst.so.6: cannot open shared object file: No such file or directory at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(Unknown Source) at java.lang.ClassLoader.loadLibrary(Unknown Source) at java.lang.Runtime.load0(Unknown Source) at java.lang.System.load(Unknown Source) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(Unknown Source) at java.lang.ClassLoader.loadLibrary(Unknown Source) at java.lang.Runtime.loadLibrary0(Unknown Source) at java.lang.System.loadLibrary(Unknown Source) at sun.security.action.LoadLibraryAction.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Toolkit.loadLibraries(Unknown Source) at java.awt.Toolkit.<clinit>(Unknown Source) at sun.print.CUPSPrinter.<clinit>(Unknown Source) at sun.print.UnixPrintServiceLookup.getDefaultPrintService(Unknown Source) at sun.print.UnixPrintServiceLookup.refreshServices(Unknown Source) at sun.print.UnixPrintServiceLookup$PrinterChangeListener.run(Unknown Source) Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class java.awt.Toolkit at java.awt.Color.<clinit>(Unknown Source) at hms.model.l.<init>(Unknown Source) at hms.model.ProjectManager.<init>(Unknown Source) at hms.Hms.<init>(Unknown Source) at hms.Hms.main(Unknown Source) Exception in thread "Thread-2" java.lang.NoClassDefFoundError: Could not initialize class sun.print.CUPSPrinter at sun.print.UnixPrintServiceLookup.getDefaultPrintService(Unknown Source) at javax.print.PrintServiceLookup.lookupDefaultPrintService(Unknown Source) at hms.util.f.run(Unknown Source) at java.lang.Thread.run(Unknown Source) I get similar outputs when I try to run HEC-DSSVue.sh. If anyone could shed some light on a solution I would really appreciate it. The problem turned out to be that the program needed 32 bit versions of the particular dependencies.

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  • Live CD / Live USB much faster than full install

    - by user29347
    I've observed it on both laptops I own! HP Compaq nx6125 and Ubuntu 11.04 x64 - somewhat solved Lenovo Thinkpad T500 and Ubuntu 11.10 x64 - help needed! I'm still struggling with the Thinkpad to get performance level similar to that of 10 y.o. laptops... All in all a really serious issue with multiple versions of Ubuntu that renders computers with perfectly compatible hardware unusable, as far as out of the box experience is concerned. Troubleshooting resultant issues seems to be a hard case even for users with some experience with installing graphics drivers. EDIT: I can't really post additional details. Two different ubuntu versions, two laptops, two different set of graph. drivers (OS vs ATI prop.) - all with the same symptoms. Also I can't stress enough how massive the performance degradation is compared to a healthy system. For that reason I ask for input from people who may know roughly what are we dealing with here. I can post more details if we were to focus on my current Thinkpad T500. In that case my current system details: Lenovo Thinkpad T500 Ubuntu 11.10 x64 ATI Mobility Radeon HD 3650 (also see the "What I have already tried" section about Intel graphics tested) ATI Catalyst 11.10 drivers OCZ Agility 3 SSD but! same with the default driver for ATI the card same with the prop. driver for the ATI card from Jockey (Additional drivers applet) What I have already tried: 0. Switching to Intel integrated card (Intel GMA 4500M HD) with the default driver - same effects = may indicate not driver related problem but a problem with something of global influence like e.g. nomodeset or other I don't even know about. (What you can read above) ATI Catalyst 11.10 and radeon.modeset=0 boot parameter + disabled Wait for VBlank. Unity 2D Ubuntu 10.04 LTS tested (ubuntu-10.04.3-desktop-i386.iso): Both live USB and installed version blazing fast! (on the default drivers - without even installing the proprietary fglrx drivers). re2 a) seems to give me the only significant results (still poor) - perfect Unity elements performance with the same crawling stuttering/lagging when dragging windows around. re2 b) this happens often http://i17.photobucket.com/albums/b68/Bucic/ubuntuforumsorg/Screenshotat2011-10-28083140.png re2 c) Sometimes I am able to witness a normal performance when dragging a window around but only for a second or two. When I try to shake it longer it starts to lag and it will keep lagging like that with an increased probability of what you see in the sshot in point re2 b). re2 d) I can't establish the radeon.modeset=0 influence though. Once it seems to work be smooth with it, the other time - without it. Really can't tell.

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  • How to install Canon MP610 printer on Ubuntu 12.04 x64

    - by Arkadius
    I installed Ubuntu 12.04 x64. Orginal Canon drivers are only for 32-bit version. How can I install this printer in 64-bit version ? Arkadius HERE IS SOLUTION I looked for solution some time and finally found it. First I try to do it by adding repository like it is written here: http://www.iheartubuntu.com/2012/02/install-canon-printer-for-ubuntu-linux.html BUT it did NOT work. Printer was installed but every print JOB goes somewhere ( probably to /dev/null :) ) Also installing sudo apt-get install ia32-libs did NOT worked (it was already installed) Finally I found solution. NOTE I did NOT use orginal Canon drivers for 32-bit. I also removed drivers from repository: ppa:michael-gruz/canon I found solution almost at the end of this thread: http://ubuntuforums.org/showthread.php?t=1967725&page=10 Most important hint was found in Response #97 "Do NOT install any PPA" I did as follows: Removed all copies of my printer Removed Canon drivers from repository ppa:michael-gruz/canon sudo apt-get remove cnijfilter* Added new repository and installed CUPS for Canon: sudo apt-add-repository ppa:robbiew/cups-bjnp sudo apt-get update sudo apt-get install cups-bjnp Installed Gutenprint: sudo apt-get install printer-driver-gutenprint Restarted CUPS: sudo restart cups Add myself to group lp: sudo usermod -G lp -a your_user_name Added printer usings steps from link above: Don't install any PPA for the drivers. Click the Cog up in the right-hand corner and select Printers. Turn on the printer and make sure it is connected. When the Printers windows appears, click +Add and wait a few minutes. Your printer should appear within the configuration wizard. Mine did and its an Canon MX330. Click the defaults and continue on. Cups should identify your printer. I saw a few other models in the list. I was able to successfully print a test page afterwards. I hope this will also help someone else. Arkadius .

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  • How to build, sort and print a tree of a sort?

    - by Tuplanolla
    This is more of an algorithmic dilemma than a language-specific problem, but since I'm currently using Ruby I'll tag this as such. I've already spent over 20 hours on this and I would've never believed it if someone told me writing a LaTeX parser was a walk in the park in comparison. I have a loop to read hierarchies (that are prefixed with \m) from different files art.tex: \m{Art} graphical.tex: \m{Art}{Graphical} me.tex: \m{About}{Me} music.tex: \m{Art}{Music} notes.tex: \m{Art}{Music}{Sheet Music} site.tex: \m{About}{Site} something.tex: \m{Something} whatever.tex: \m{Something}{That}{Does Not}{Matter} and I need to sort them alphabetically and print them out as a tree About Me (me.tex) Site (site.tex) Art (art.tex) Graphical (graphical.tex) Music (music.tex) Sheet Music (notes.tex) Something (something.tex) That Does Not Matter (whatever.tex) in (X)HTML <ul> <li>About</li> <ul> <li><a href="me.tex">Me</a></li> <li><a href="site.tex">Site</a></li> </ul> <li><a href="art.tex">Art</a></li> <ul> <li><a href="graphical.tex">Graphical</a></li> <li><a href="music.tex">Music</a></li> <ul> <li><a href="notes.tex">Sheet Music</a></li> </ul> </ul> <li><a href="something.tex">Something</a></li> <ul> <li>That</li> <ul> <li>Doesn't</li> <ul> <li><a href="whatever.tex">Matter</a></li> </ul> </ul> </ul> </ul> using Ruby without Rails, which means that at least Array.sort and Dir.glob are available. All of my attempts were formed like this (as this part should work just fine). def fss_brace_array(ss_input)#a concise version of another function; converts {1}{2}...{n} into an array [1, 2, ..., n] or returns an empty array ss_output = ss_input[1].scan(%r{\{(.*?)\}}) rescue ss_output = [] ensure return ss_output end #define tree s_handle = File.join(:content.to_s, "*") Dir.glob("#{s_handle}.tex").each do |s_handle| File.open(s_handle, "r") do |f_handle| while s_line = f_handle.gets if s_all = s_line.match(%r{\\m\{(\{.*?\})+\}}) s_all = s_all.to_a #do something with tree, fss_brace_array(s_all) and s_handle break end end end end #do something else with tree

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  • Nvidia driver cannot be installed with jockey for old hardware

    - by Alen
    I have a GeForce FX/5-series card and I cannot install the driver using the Additional Drivers (jokey) tool. I just installed Ubuntu 12.04 and installed all nvidia drivers, but my drivers are not activated, when I open Nvidia settings manager I get the following message: You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run nvidia-xconfig as root), and restart the X server. Can you help me with this?

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  • 12.04.1 no audio through HDMI

    - by JoJo
    having a bit of an issue with getting audio to go through HDMI. Here are the base specs: OS: Ubuntu Desktop 12.04.1 x64 CPU: AMD A10-5800K 3.8G 4M FM2 R Mobo: MSI FM2-A75MA-E35 OS: Ubuntu 12.04.1 LTS Vid Card: (integrated on CPU) AMD Radeon HD 7660D HDMI sound works fine under Win7 (after mobo and vid drivers are installed), so it's not physically broken. Audio through the normal headphone jacks works fine under Ubuntu. Looking at the audio panel, there is no HDMI output at all. aplay -l also reports only: card 0: Generic [HD-Audio Generic], device 0: ALC887-VD Analog [ALC887-VD Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 In additional drivers there are two versions: ATI/AMD PROPRIETARY FGLRX GRAPHICS DRIVER ATI/AMD PROPRIETARY FGLRX GRAPHICS DRIVER (post-release update) The first installs, but problem persists. I do get more resolutions to pick from. Second version does not, reporting it failed installation and to find details at: /var/log/jockey.log Looked at the log, and it's insanely long, if necessary I can get it to you guys. Did more research and some had luck by manually installing the drivers, so tried to give that a shot by following this: https://help.ubuntu.com/community/BinaryDriverHowto/ATI#Manually_installing_Catalyst_12.6 starting at 3.1 Manually installing Catalyst 12.6. I immediately had 2 issues, (1) the AMD website does not provide any drivers for Linux, and (2) the following command did not work: sudo sh amd-driver-installer-12-6-x86.x86_64.run --buildpkg Ubuntu/precise sh: 0: Can't open amd-driver-installer-12-6-x86.x86_64.run Some other posts stated to update "alsa-drivers", but that also did not work as install command for the new version of them did not work. I forget the exact issue, but similar to above, cannot open / cannot find. Any help would be greatly appreciated!

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  • obiee 10g teradata Solaris deployment

    - by user554629
    I have 3-4 years worth of notes on proper Teradata deployment across multiple operating systems.   The topic that is too large to cover succinctly in a blog entry.   I'm trying something new:  document a specific situation, consolidate the facts, document diagnostic procedures and then clone the structure to cover other obiee deployments (11g and other operating systems). Until the icon below is removed, this blog entry may be revised frequently.  No construction between June 6th through June 25th. Getting started obiee 10g certification:  pg 24-25 Teradata V2R5.1.x - V2R6.2, Client 13.10, certified 10.1.3.4.1obiee 10g documentation: Deployment Guide, Server Administration, Install/Config Guideobiee overview: teradata connectivity downloads: ( requires registration )solaris odbc drivers: sparc 13.10:  Choose 13.10.00.04  ( ReadMe ) sparc 14.00: probably would work, but not certified by Oracle on 10g I assume you have obiee 10.1.3.4.1 installed; 10.1.3.4.2 would be a better choice. Teradata odbc install requires root for Solaris pkgadd Only 1 version of Teradata odbc can be installed.symbolic links to the current version are created in /usr/lib at install obiee implementation background database access has two types of implementation:  native and odbcnative drivers use DB vendor client interfaces for accessodbc drivers are provided by the DB vendor for DB accessTeradata is an odbc interface Database. odbc drivers require an ODBC Driver Managerobiee uses Merant Data Direct driver manager obiee servers communicate with one another using odbc.The internal odbc driver is implemented by the obiee team and requires Merant Driver Manager. Teradata supplies a Driver Manager, which is built by Merant, but should not be used in obiee. The nqsserver shared library deployment looks like this  OBIEE Server<->DataDirect Manager<->Teradata Driver<->Teradata Database nqsserver startup $ cd $BI/setup$ . ./sa-init64.sh$ run-sa.sh autorestart64 The following files are referenced from setup:  .variant.sh  user.sh  NQSConfig.INI  DBFeatures.INI  $ODBCINI ( odbc.ini )  sqlnet.ora How does nqsserver connect to Teradata? A teradata DSN is created in the RPD. ( TD71 )setup/odbc.ini contains: [ODBC Data Sources] TD71=tdata.so[TD71]Driver=/opt/tdodbc/odbc/drivers/tdata.soDescription=Teradata V7.1.0DBCName=###.##.##.### LastUser=Username=northwindPassword=northwindDatabase=DefaultDatabase=northwind setup/user.sh contains LIBPATH\=/opt/tdicu/lib_64\:/usr/odbc/lib\:/usr/odbc/drivers\:/usr/lpp/tdodbc/odbc/drivers\:$LIBPATHexport LIBPATH   setup/.variant.sh contains if [ "$ANA_SERVER_64" = "1" ]; then  ANA_BIN_DIR=${SAROOTDIR}/server/Bin64  ANA_WEB_DIR=${SAROOTDIR}/web/bin64  ANA_ODBC_DIR=${SAROOTDIR}/odbc/lib64         setup/sa-run.sh  contains . ${ANA_INSTALL_DIR}/setup/.variant.sh. ${ANA_INSTALL_DIR}/setup/user.sh logfile="${SAROOTDIR}/server/Log/nqsserver.out.log"${ANA_BIN_DIR}/nqsserver -quiet >> ${logfile} 2>&1 &   nqsserver is running: nqsserver produces $BI/server/nqsserver.logAt startup, the native database drivers connect and record DB versions.tdata.so is not loaded until a Teradata DB connection is attempted.    Teradata odbc client installation Accept all the defaults for pkgadd.   Install in /opt. $ mkdir odbc$ cd odbc$ gzip -dc ../tdodbc__solaris_sparc.13.10.00.04.tar.gz | tar -xf - $ sudo su# pkgadd -d . TeraGSS# pkgadd -d . tdicu1310# pkgadd -d . tdodbc1310   Directory Notes: /opt/teradata/client/13.10/odbc_64/lib/tdata.soThe 64-bit obiee library loaded by nqsserver. /opt/teradata/client/13.10/odbc_64/lib is not needed in LD_LIBRARY_PATH /opt/teradata/client/13.10/tdicu/lib64is needed in LD_LIBRARY_PATH /usr/odbc should not be referenced;  it is a link to 32-bit libraries LD_LIBRARY_PATH_64 should not be used.     Useful bash functions and aliases export SAROOTDIR=/export/home/dw_adm/OracleBIexport TERA_HOME=/opt/teradata/client/13.10 export ORACLE_HOME=/export/home/oracle/product/10.2.0/clientexport ODBCINI=$SAROOTDIR/setup/odbc.iniexport TD_ICU_DATA=$TERA_HOME/tdicu/lib64alias cds="alias | grep '^alias cd' | sed 's/^alias //' | sort"alias cdtd="cd $TERA_HOME; ls" alias cdtdodbc="cd $TERA_HOME/odbc_64; ls -l"alias cdtdicu="cd $TERA_HOME/tdicu/lib64; ls -l"alias cdbi="cd $SAROOTDIR; ls"alias cdbiodbc="cd $SAROOTDIR/odbc; ls -l"alias cdsetup="cd $SAROOTDIR/setup; ls -ltr"alias cdsvr="cd $SAROOTDIR/server; ls"alias cdrep="cd $SAROOTDIR/server/Repository; ls -ltr"alias cdsvrcfg="cd $SAROOTDIR/server/Config; ls -ltr"alias cdsvrlog="cd $SAROOTDIR/server/Log; ls -ltr"alias cdweb="cd $SAROOTDIR/web; ls"alias cdwebconfig="cd $SAROOTDIR/web/config; ls -ltr"alias cdoci="cd $ORACLE_HOME; ls"pkgfiles() { pkgchk -l $1 | awk  '/^Pathname/ {print $2}'; }pkgfind()  { pkginfo | egrep -i $1 ; } Examples: $ pkgfind td$ pkgfiles tdodbc1310 | grep 64$ cds$ cdtdodbc$ cdsetup$ cdsvrlog$ cdweblog

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  • Project Euler #290 in python, hint please

    - by debragail
    This solution is grossly inefficient. What am I missing? #!/usr/bin/env python #coding: utf-8 import time from timestrings import * start = time.clock() maxpower = 18 count = 0 for i in range(0, 10 ** maxpower - 1): if i % 9 == 0: result1 = list(str(i)) result2 = list(str(137 * i)) sum1 = 0 for j in result1: sum1 += int(j) sum2 = 0 for j in result2: sum2 += int(j) if sum1 == sum2: print (i, sum1) count += 1 finish = time.clock() print ("Project Euler, Project 290") print () print ("Answer:", count) print ("Time:", stringifytime(finish - start))

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  • How do I get a Canon LBP 2900 printer working?

    - by elektron
    i am unable to set up my canon lbp2900 printer on ubuntu12.04 64 bit i aliened the 64 bit rpm drivers and then installed the drivers (version 2.40) and followed the procedure in the canon guide ( however i changed fifo path to //localhost:59787 (somebody suggested) instead of 59687 (as suggested by canon guide) ) intially i got the message pstocapt failed .. the drivers had put the pstocapt and backend/ccp in the lib64 directory instead of the lib directory ... i copied that to the aproprite directory under lib but still i get the error "ccp send_data error exit " i also tried with fifo path //localhost:59687 i also tried the Radu script but the drivers the script uses are version 1.90 and has conflicting packages

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  • How can I solve display glitches and poor performance with ATI fglrx driver on my ThinkPad X100e?

    - by rewbs
    I noticed that video performance on my Thinkpad X100e was very poor compared to Windows 7, so I installed the ATI fglrx proprietary drivers by using the "Additional Drivers" dialogue box. The system has an ATI Radeon Mobility HD 3200 chip. The result of installing the drivers is pretty devastatingly negative, with symptoms such as skewed content in windows, browser tabs and text boxes failing to refresh when their content changes. In fact, please excuse typos in this post, because I can't really see what I am typing. :) I also notice that HD video playback performance is no better - perhaps even worse - than prior to installing the drivers. Example of what I see: Here's the output of fglrxinfo: display: :0.0 screen: 0 OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: ATI Radeon HD 3200 Graphics OpenGL version string: 3.3.10237 Compatibility Profile Context Output of lspci | grep -i vga: 01:05.0 VGA compatible controller: ATI Technologies Inc RS780M/RS780MN [Radeon HD 3200 Graphics] I'm on Ubuntu 10.10 with kernel 2.6.35-22-generic-pae. What can I try? Many thanks, -R

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  • Python constructor does weird things with optional parameters

    - by christangrant
    Can you help me understand of the behaviour and implications of the python __init__ constructor. It seems like when there is an optional parameter and you try and set an existing object to a new object the optional value of the existing object is preserved and copied. Ok that was confusing... so look at an example I concocted below. In the code below I am trying to make a tree structure with nodes and possibly many children . In the first class NodeBad, the constructor has two parameters, the value and any possible children. The second class NodeGood only takes the value of the node as a parameter. Both have an addchild method to add a child to a node. When creating a tree with the NodeGood class, it works as expected. However, when doing the same thing with the NodeBad class, it seems as though a child can only be added once! The code below will result in the following output: Good Tree 1 2 3 [< 3 >] Bad Tree 1 2 2 [< 2 >, < 3 >] Que Pasa? Here is the Example: #!/usr/bin/python class NodeBad: def __init__(self, value, c=[]): self.value = value self.children = c def addchild(self, node): self.children.append(node) def __str__(self): return '< %s >' % self.value def __repr__(self): return '< %s >' % self.value class NodeGood: def __init__(self, value): self.value = value self.children = [] def addchild(self, node): self.children.append(node) def __str__(self): return '< %s >' % self.value def __repr__(self): return '< %s >' % self.value if __name__ == '__main__': print 'Good Tree' ng = NodeGood(1) # Root Node rootgood = ng ng.addchild(NodeGood(2)) # 1nd Child ng = ng.children[0] ng.addchild(NodeGood(3)) # 2nd Child print rootgood.value print rootgood.children[0].value print rootgood.children[0].children[0].value print rootgood.children[0].children print 'Bad Tree' nb = NodeBad(1) # Root Node rootbad = nb nb.addchild(NodeBad(2)) # 1st Child nb = nb.children[0] nb.addchild(NodeBad(3)) # 2nd Child print rootbad.value print rootbad.children[0].value print rootbad.children[0].children[0].value print rootbad.children[0].children

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  • Writing Device Drivers for Microcontrollers, where to define IO Port pins?

    - by volting
    I always seem to encounter this dilemma when writing low level code for MCU's. I never know where to declare pin definitions so as to make the code as reusable as possible. In this case Im writing a driver to interface an 8051 to a MCP4922 12bit serial DAC. Im unsure how/where I should declare the pin definitions for The CS(chip select) and LDAC(data latch) for the DAC. At the moment there declared in the header file for the driver. Iv done a lot of research trying to figure out the best approach but havent really found anything. Im basically want to know what the best practices... if there are some books worth reading or online information, examples etc, any recommendations would be welcome. Just a snippet of the driver so you get the idea /** @brief This function is used to write a 16bit data word to DAC B -12 data bit plus 4 configuration bits @param dac_data A 12bit word @param ip_buf_unbuf_select Input Buffered/unbuffered select bit. Buffered = 1; Unbuffered = 0 @param gain_select Output Gain Selection bit. 1 = 1x (VOUT = VREF * D/4096). 0 =2x (VOUT = 2 * VREF * D/4096) */ void MCP4922_DAC_B_TX_word(unsigned short int dac_data, bit ip_buf_unbuf_select, bit gain_select) { unsigned char low_byte=0, high_byte=0; CS = 0; /**Select the chip*/ high_byte |= ((0x01 << 7) | (0x01 << 4)); /**Set bit to select DAC A and Set SHDN bit high for DAC A active operation*/ if(ip_buf_unbuf_select) high_byte |= (0x01 << 6); if(gain_select) high_byte |= (0x01 << 5); high_byte |= ((dac_data >> 8) & 0x0F); low_byte |= dac_data; SPI_master_byte(high_byte); SPI_master_byte(low_byte); CS = 1; LDAC = 0; /**Latch the Data*/ LDAC = 1; }

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  • NVIDIA proprietary driver logging me to console instead of GUI

    - by Woozie
    Firstly i want to apologise for any mistakes, English is not my native language. My problem is I can't get NVIDIA proprietary drivers to work. I tried to install it on Ubuntu 12.04.1 32 and 64 bits, Ubuntu 12.10 Beta 2, Linux Mint 13 Cinnamon 64 bits and openSUSE 12.2 64 bits and the error code and symptoms (logging to tty1 instead of GUI logging, low-res bootscreen) are the same for all of these distros. Right, I didn't tell what's the error code. It appears on sudo startx. NVIDIA: could not open the device file /dev/nvidia0 (Input/output error). I know that's the common problem, but I tried to blacklist or even remove the noveau drivers, install NVIDIA driver from repo/from official script/in "Additional drivers", editing xorg.conf and using Xorg -configurate and nvidia-xconfig, actualizing the kernel and entire distro and many, many things that I don't remember. But the problem is even better: entire Cinnamon (Mint) is freezing during the work. I found the error code, which appears during the freeze: Oct 1 20:57:17 WoozieLaptop kernel: [ 308.120176] [drm] nouveau 0000:01:00.0: PFIFO_CACHE_ERROR - Ch 4/1 Mthd 0z0060 Data 0xbcef0201 My Xorg.0.log is here. It was made on Ubuntu 12.04.1 after installing NVIDIA drivers (obviously). inxi -G from Mint: Graphics: Card: NVIDIA GT216 [GeForce GT 240M] X.org: 1.11.3 drivers: (unloaded: nvidia) FAILED: nouveau,vesa,fbdev tty size: 80x25 Advanced Data: N/A for root out of X lspci -k | grep -A2 VGA from Mint: 01:00.0 VGA compatible controller: NVIDIA Corporation GT216 [GeForce GT 240M] (rev a2) Subsystem: Lenovo Device 38ff Kernel driver in use: nvidia My hardware is: Lenovo IdeaPad Y550 Intel C2D T6600 NVIDIA GeForce GT 240M 4 GB of RAM Any help will be appreciated. This problem totally disabled my laptop from daily using. Cheers, Woozie

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