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• Rendering a frame is producing noise from speakers in Windows and Linux

  - by Robber

  When any hardware accelerated application is rendering a frame (or many of them) a very short noise is coming from my speakers. This can be a game, a WebGL application or XBMC. When the application/game is rendering many frames per second (like most of them do) the noise is a continuous buzzing that gets higher pitched with higher framerates. This applies to Linux and Windows, so I'd assume it's a hardware problem. The current hardware in the PC is: CPU: Core2Quad Q9550 GPU: Radeon HD 5770 RAM: 2x2GB DDR2 Motherboard: Asus P5QLD PRO PSU: be quiet! Pure Power 530W Screen and speakers: Old 720p LCD TV connected via VGA and aux cable Muting the TV stops the noise, muting Windows doesn't. I tried replacing the PSU first (used a Tagan 700W PSU before) because I thought it was a power problem. It wasn't. I tried replacing the motherboard (used a ASUS P5B SE before) next because I thought it was a sound card problem. It wasn't. I tried the GPU in a different PC because I thought it was a broken graphics card. It worked perfectly fine in the other PC. I thought it might be interference, but moving the audio cable around changes absolutely nothing. I tried using an HDMI cable instead and that did work, but is not an option since my TV has only one HDMI input and I need that for my PS3.

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• get a list of running ec2 instances programmatically

  - by user113981

  Hi i have started with aws and found out that we can get a list of running servers with the aws php sdk. Is there any other way to get the list of all ec2 instances? after getting the list i want to sync the data from one main instances to all the instances. Something like a button click can also do the operation. Are rsync, incron the only options, or it can be done by aws php sdk also. Please provide some tutorial links.

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• Windows won't boot after moving house. How do I solve this?

  - by James

  Ive just moved house and tried to set up my desktop after packing it away and now when I power it on, the BIOS boots up and no errors are found but when my computer tires to boot into Windows 7 a continuous fast beeping sound is made and a black screen is displayed. What I've done so far: Reset to UEFI defauts Played about with RAM, I had 4*4 GB sticks, I took all of them out to test for a mobo error which I have and now im only using 1 stick of 4 GB. Changed my GPU, I tok my gtx580 out and now im using the onboard Intel 3000 graphics driver, the BIOS and uefi are correctly displaying so I no longer think its a GPU based error. Ive check all of the connections and nothing seems to be loose. My HDD setup is: 2 128 GB SSD's in Raid 0 as my main C drive (possibly cause of error?) 1 1 TB Games drive 1 2 TB Data Drive Ive also got a blueray drive connected. After searching the internet im pretty much out of suggestions but im currently downloading a live CD to see if it will boot and if I can access some files on my HDD.

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• Know any file compare utility for chunks of text?

  - by Belun

  Is there any file-compare utility-software that can help me compare chunks of text from two text files ? As in, I want to know what chunks of text that are in one file can be found again in the second file. What I need to do is more like a 'compare and search' operation, not just a compare line by line. I need this for finding common errors in application logs. Eg., I have a Java application and logs from two different days. I want to find out which stack-traces (that are actually chunks of text inside a text file) are common to both days.

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• Throwing TRIM support in Ubuntu guest at Win7-Virtualbox host

  - by user141472

  I have VirtualBox 4.1.14 on Windows 7 as host, and Ubuntu server 11.10 as guest. System was installed at traditional HDD years ago (and upgraded later), but now it's at SSD as expanding drive. There is "AHCI" and "it's SSD" features enabled in SATA controller. Problem is, this expanding drive growth to it's almost max size (90% of it), but actually in VM only about 50% spent. Also, guest VM does not recognize /dev/sda as SSD, /sys/block/sda/queue/rotational says "1", /sys/block/sda/queue/discard_* all says "0". And, of course, I cannot run fstrim /, it says that operation not supported. Is there some trick to enable TRIM support in my guest system without reinstalling it?

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• Outlook stopped working after updating to Windows 8

  - by MikkoP

  I downloaded Windows 8 update from Microsoft's site and installed it. Everything works perfectly except Outlook. Sometimes receiving messages doesn't work for whatever reason. Now the problem is sending and replying. Before these two worked but after receiving messages started to work, these problems have occurred. When I try to press New to create a new email, I get the following error message Cannot create the e-mail message because a data file to send and receive messages cannot be found. To add a data file, such as a personal folder file, double click the Mail icon in Windows Control. When I try to reply a message, I get the following one The operation failed. An object could not be found. After the update Outlook worked ok. I've had other problems with Outlook too.

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• How to run nodejs on linux platform

  - by rotem

  How to run node.js on host with linux platform? To run node.js on localhost with windows operation system is simple I download package from nodejs.org/download/ and I execute Windows Installer (.msi) I go to console command line and I type node file.js and everything fine. but in my host with linux platform I have control panel with no option to run type file exe, msi and there is no window with command line, So how can I be able to run nodejs on my host? I call to support of my hosting bluehost.com and they don't know. my Details server and control panel Thanks for any help

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• Blocked Chrome by Company's Proxy

  - by gol.d.ace

  Chrome has just suddenly being blocked by my company for accessing internet. Instead, IE still works fine. It blocks the connection, the error says that my Chrome connection is timeout & the server is not responding Error 118 (net::ERR_CONNECTION_TIMED_OUT): The operation timed out). I guess the reason behind this is to standardize all user's browser for only using IE for security reason. I have tried to change the user-agent string (--user-agent="... ") so that the Chrome will pretend to be as IE. and yet, still not working! Could anyone shed my problem here? IE is just not comfortable so-called for surfing the web!

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• BIND unstable with DLZ+MySQL on Ubuntu 9.10, any ideas?

  - by Chris

  My BIND server keeps dropping out and I can't work out why. Here is some info from the syslog that I think pertains to the failure(s): Apr 22 21:12:17 dnsdebug named[6613]: mysql driver unable to return result set for lookup query Apr 22 21:12:17 dnsdebug kernel: [285552.573949] type=1503 audit(1271963537.759:53): operation="open" pid=6618 parent=1 profile="/usr/sbin/named" requested_mask="::rw" denied_mask="::rw" fsuid=107 ouid=0 name="/dev/tty" Apr 22 21:12:17 dnsdebug named[6613]: mysql driver unable to return result set for lookup query Apr 22 21:13:17 dnsdebug named[6613]: last message repeated 7 times Any ideas? Mysql had a segfault sometimes, but that seems to be no longer an issue. It's the 64bit version of ubuntu too. Sometimes it will return records just fine, other times it appears to just randomly go down.

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• Can I run virtualized 64-bit Operating Systems if my CPU doesn't support VT-X?

  - by tintinmj

  I have installed VMWare 10.0 workstation on my Compaq CQ60-615DX laptop. The Operating System is Windows 7 Home Premium. When I tried to run Ubuntu 14.04 64-bit in a virtual machine in VMWare I get an error saying: This virtual machine is configured for 64-bit guest operating systems. However, 64-bit operation is not possible. This host does not support Intel VT-x. For more detailed information, see http://vmware.com/info?id=152. So I googled and found that I have to enable Intel VT-x. But I found out that my processor doesn't support Intel® Virtualization Technology (VT-x). So am I doomed and can I never run any virtual OS on my laptop? Or can I run 32-bit OSes?

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• Unkillable process problem

  - by skevar7

  I closed application, but the process remained in the list. I try to stop in from the task manager, but nothing happens. No error messages, process just stays in the list. I try to debug it, but the debugger says: Unable to attach to the crashing process. The requested operation is not supported. This happens with VS2008 and some other programs, sometimes. What? The? Hell? How to kill it?

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• Server Hosting + AWS

  - by ledy

  Since my dedicated servers are hosted at a "normal" hosting service, I wonder if there is a really cheap way to extend the server farm with AWS instances. E.g. it seems to be a effient and flexible solution with data storage and ressources for ocassional data processing, too. However, it might be very in-efficient to mix two data centres and transfering data from current webhoster to amazon and vice-versa. In my case, the traffic for this continuous data exchange seems to be expensive and the delay for moving the data back to the hoster leads into a lack or delay. How are best practises for mixing non-aws and aws systems? E.g.: How to move the hosters data to aws as log file storage to run urchin analysis and/or port the log file data into a bigtable for exhausting analysis there. After working with the data: how to bring it back to the hoster and use the data with the webservers there? I am not going to move all the server farm to amazon, only "separate" parts or tasks if the transfer/exchange does not lead to increased cost.

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• SQL server could not connect: Lacked Sufficient Buffer Space...

  - by chumad

  I recently moved my app to a new server - the app is written in c# against the 3.5 framework. The hardware is faster but the OS is the same (Win Server 2003). No new software is running. On the prior hardware the app would run for months with no problems. Now, in this new install, I get the following error after about 3 days, and the only way to fix it is to reboot: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full.) I have yet to find a service I can even shut down to make it work. Anyone had this before and know a solution?

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• Cant remove/delete symlink

  - by user477519

  I have tried to create a symlink and it threw this error: ln: accessing `.test': Permission denied Now I can't unlink or delete the symlink file. Tried Googling for help but could not find a solution. Please find the results of following commands. stat .test : File: `.test'stat: cannot read symbolic link `.test': Permission denied Size: 26 Blocks: 0 IO Block: 16384 symbolic link Device: 1fh/31d Inode: 312075453 Links: 1 Access: (0777/lrwxrwxrwx) Uid: (11160/ chatt) Gid: (11307/ pgr) Access: 2012-11-12 11:36:51.167327500 +0000 Modify: 2012-11-12 11:36:51.163331700 +0000 Change: 2012-11-12 11:36:51.163331700 +0000 Birth: - chattr -i .test: chattr: Permission denied while trying to stat .test lsatter .test lsattr: Operation not supported While reading flags on .test Any help would be appreciated. Thanks

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• Windows 7 - cannot access my own external disk

  - by Tomas

  I use Windows 7 Home Premium and external USB disk with NTFS partition. I cannot write-access the my own files on it, even as a member of Admnistrators group! Is there any way how to go around this permission checking, without actually writing some permission information to every folder on it? I have 3 external disks (up to 1TB), and I have thousands hundreds of files on each!!! Doing some permission change, that will actually go recursivelly through all folders on all my disks is plain brain damage!! 1) Is there any way how to change it somehow globally? (like mount options...) .. Or how to go around this annoying permission checking? It was working in Win XP normally! 2) if not, and I must do the recursive operation on all folders, how to do it PERMANENTLY, so that I don't need to do it again on another Windows 7 computer!

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• can I make Excel always open a delimited text file with "text" translation?

  - by khedron

  Hi there, Opening a tab-delimited data file in Excel to view & manipulate the data is a very common operation around here. However, by default Excel (2003/4 or 2007/8) will read the columns in a "General" format, which occasionally does terrible things like turning "1/2" into "2-Jan". Is there a way to tell Excel never to do this, but always process the values as Text, without going through the format wizard, selecting all of the columns, and doing it manually? Extra points if this works in both Mac and Windows versions of Excel.

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• Squid throws error, The requested URL could not be retrieved

  - by Supratik

  Hi Sometimes I am getting the following error The requested URL could not be retrieved While trying to retrieve the URL: http://groups.google.com/ The following error was encountered: Unable to determine IP address from host name for groups.google.com The dnsserver returned: Refused: The name server refuses to perform the specified operation. This means that: The cache was not able to resolve the hostname presented in the URL. Check if the address is correct. Your cache administrator is root. What could be the reason for the above error ? Regards Supratik

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• Linux Raid: Can mdadm --grow a raid1 while mounted?

  - by Chris

  I have 2 500gb drives in a RAID1 setup that I needed to upgrade for more space. I mdadm --fail'ed each drive in turn and I used dd to copy each drive to it's respective larger drive (2tb each), removed the smaller drives and replaced them with the larger drives, and reassembled the array and forced a resync. So now I've got a 500gb RAID1 sitting on 2TB drives, and wish to grow them. The plan is to use mdadm --manage /dev/md0 --grow to grow them, then boot a rescue cd, assemble the array under that environment, and do the resize2fs on them. Can I use mdadm --grow on a mounted and live filesystem? Also, do I need more options to make sure the grow operation stays raid1?

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• Does SQL Server Management Studio 2008 Activity Monitor work with SQL Server 2000?

  - by Andrew Janke

  I am trying to use SQL Server Management Studio 2008's Activity Monitor with an SQL Server 2000 instance to diagnose some query performance issues. I can connect SMSS 2008 to the db fine, and use it to browse objects and run queries. But when I press the Activity Monitor button, it pops up an error message saying: Microsoft SQL Server Management Studio This operation does not support connections to Microsoft SQL Server Personal Edition version 8.00.818. This MSDN article implies that Activity Monitor works with SQL Server 2000. Is it the fact that it's Personal Edition that's preventing it from working? The error message isn't clear whether it's the edition or version that's the problem.

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• SQL database testing: How to capture state of my database for rollback.

  - by Rising Star

  I have a SQL server (MS SQL 2005) in my development environment. I have a suite of unit tests for some .net code that will connect to the database and perform some operations. If the code under test works correctly, then the database should be in the same (or similar) state to how it was before the tests. However, I would like to be able to roll back the database to its state from before the tests run. One way of doing this would be to programmatically use transactions to roll back each test operation, but this is difficult and cumbersome to program; it could easily lead to errors in the test code. I would like to be able to run my tests confidently knowing that if they destroy my tables, I can quickly restore them? What is a good way to save a snapshot of one of my databases with its tables so that I can easily restore the database to it's state from before the test?

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• How to use XSLT to tag specific nodes with unique, sequential, increasing integer ids?

  - by ~otakuj462

  Hi, I'm trying to use XSLT to transform a document by tagging a group of XML nodes with integer ids, starting at 0, and increasing by one for each node in the group. The XML passed into the stylesheet should be echoed out, but augmented to include this extra information. Just to be clear about what I am talking about, here is how this transformation would be expressed using DOM: states = document.getElementsByTagName("state"); for( i = 0; i < states.length; i++){ states.stateNum = i; } This is very simple with DOM, but I'm having much more trouble doing this with XSLT. The current strategy I've devised has been to start with the identity transformation, then create a global variable which selects and stores all of the nodes that I wish to number. I then create a template that matches that kind of node. The idea, then, is that in the template, I would look up the matched node's position in the global variable nodelist, which would give me a unique number that I could then set as an attribute. The problem with this approach is that the position function can only be used with the context node, so something like the following is illegal: <template match="state"> <variable name="stateId" select="@id"/> <variable name="uniqueStateNum" select="$globalVariable[@id = $stateId]/position()"/> </template> The same is true for the following: <template match="state"> <variable name="stateId" select="@id" <variable name="stateNum" select="position($globalVariable[@id = $stateId])/"/> </template> In order to use position() to look up the position of an element in $globalVariable, the context node must be changed. I have found a solution, but it is highly suboptimal. Basically, in the template, I use for-each to iterate through the global variable. For-each changes the context node, so this allows me to use position() in the way I described. The problem is that this turns what would normally be an O(n) operation into an O(n^2) operation, where n is the length of the nodelist, as this require iterating through the whole list whenever the template is matched. I think that there must be a more elegant solution. Altogether, here is my current (slightly simplified) xslt stylesheet: <?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:s="http://www.w3.org/2005/07/scxml" xmlns="http://www.w3.org/2005/07/scxml" xmlns:c="http://msdl.cs.mcgill.ca/" version="1.0"> <xsl:output method="xml"/> <!-- we copy them, so that we can use their positions as identifiers --> <xsl:variable name="states" select="//s:state" /> <!-- identity transform --> <xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> <xsl:template match="s:state"> <xsl:variable name="stateId"> <xsl:value-of select="@id"/> </xsl:variable> <xsl:copy> <xsl:apply-templates select="@*"/> <xsl:for-each select="$states"> <xsl:if test="@id = $stateId"> <xsl:attribute name="stateNum" namespace="http://msdl.cs.mcgill.ca/"> <xsl:value-of select="position()"/> </xsl:attribute> </xsl:if> </xsl:for-each> <xsl:apply-templates select="node()"/> </xsl:copy> </xsl:template> </xsl:stylesheet> I'd appreciate any advice anyone can offer. Thanks.

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• When I connect my iPhone 3GS to my PC, iTunes "freezes": Activity Monitor shows iTunes as "Not Respo

  - by reachmanoj74

  When I connect my iPhone 3GS to my PC, iTunes "freezes": Activity Monitor shows iTunes as "Not Responding". The iPhone indicates that it is being charged, and otherwise seems normal. When I disconnect the iPhone, iTunes immediately returns to normal operation. Connect again, and instant freeze again. I have rebooted the PC, uninstalled iTunes and reinstalled it and have reset the iPhone. No help. Everything worked fine yesterday. I haven't installed software or changed anything since the last time I synced. iPhone 3GS is running version 3.1.2(7D11). It is jailbroken.

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• Ubuntu Linux -- create custom burnable/bootable DVD image?

  - by ashgromnies

  I recently developed some kiosk software that runs on Ubuntu Linux, and my client needs me to set up ten more computers with the complete software package(and that number will only grow in the future). So I'm looking for a way to make this less of a pain in the neck and prevent me from shooting myself in the foot -- I had to disable some things on the installations of the operating systems like screensavers, automatic updates, etc. that would pop up and disrupt the kiosk operation. I don't feel comfortable doing that by hand across 10 computers, it seems stupid. Does anybody have recommendations for software that would let me burn an installable DVD with a complete image of the hard drive from one of the devices? I've looked at Clonezilla, G4L, and PartImage and I'm still not quite sure if any of them offer what I need. I know PartImage for sure won't work, because it doesn't support Ext4.

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• Why does Outlook 2010 give the message "Creating a new item from the selected items could take some time...are you sure you create a new item...?

  - by Matt

  I'm using Outlook 2010 with Exchange 2007. I am moving emails from my Deleted Items folder to a user-created folder. When I move a "low" number of messages, say a few hundred or less, the operation completes successfully. When I move a "large" number of messages (in this example it's over 800) I get the message shown in the screenshot below. If I click Yes, a new email is generated and has links to all the emails I selected in the Attachment field. When I cancel that email, not only have the messages not moved but they appear to be deleted entirely. What does the message mean and why does it get presented? Why does clicking Yes do the behavior I described above?

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• Opening of the spWeb.ContentTypes gives SOAP Exception 0x80004004

  - by mdi

  Hi everybody! I have the code which going through the sharepoint contenttypes and changes needed field display names. On my local server everything works fine, but on the client side it gives me an error: Microsoft.SharePoint.SPException: Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT)) --- System.Runtime.InteropServices.COMException (0x80004004): Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT)) at Microsoft.SharePoint.Library.SPRequestInternalClass.OpenWebInternal(String bstrUrl, Guid& pguidID, String& pbstrRequestAccessEmail, UInt32& pwebVersion, String& pbstrServerRelativeUrl, UInt32& pnLanguage, UInt32& pnLocale, String& pbstrDefaultTheme, String& pbstrDefaultThemeCSSUrl, String& pbstrAlternateCSSUrl, String& pbstrCustomizedCssFileList, String& pbstrCustomJSUrl, String& pbstrAlternateHeaderUrl, String& pbstrMasterUrl, String& pbstrCustomMasterUrl, String& pbstrSiteLogoUrl, String& pbstrSiteLogoDescription, Object& pvarUser, Boolean& pvarIsAuditor, Int32& plSiteFlags) at Microsoft.SharePoint.Library.SPRequest.OpenWebInternal(String bstrUrl, Guid& pguidID, String& pbstrRequestAccessEmail, UInt32& pwebVersion, String& pbstrServerRelativeUrl, UInt32& pnLanguage, UInt32& pnLocale, String& pbstrDefaultTheme, String& pbstrDefaultThemeCSSUrl, String& pbstrAlternateCSSUrl, String& pbstrCustomizedCssFileList, String& pbstrCustomJSUrl, String& pbstrAlternateHeaderUrl, String& pbstrMasterUrl, String& pbstrCustomMasterUrl, String& pbstrSiteLogoUrl, String& pbstrSiteLogoDescription, Object& pvarUser, Boolean& pvarIsAuditor, Int32& plSiteFlags) --- End of inner exception stack trace --- at Microsoft.SharePoint.Library.SPRequest.OpenWebInternal(String bstrUrl, Guid& pguidID, String& pbstrRequestAccessEmail, UInt32& pwebVersion, String& pbstrServerRelativeUrl, UInt32& pnLanguage, UInt32& pnLocale, String& pbstrDefaultTheme, String& pbstrDefaultThemeCSSUrl, String& pbstrAlternateCSSUrl, String& pbstrCustomizedCssFileList, String& pbstrCustomJSUrl, String& pbstrAlternateHeaderUrl, String& pbstrMasterUrl, String& pbstrCustomMasterUrl, String& pbstrSiteLogoUrl, String& pbstrSiteLogoDescription, Object& pvarUser, Boolean& pvarIsAuditor, Int32& plSiteFlags) at Microsoft.SharePoint.SPWeb.InitWebPublic() at Microsoft.SharePoint.SPWeb.get_ServerRelativeUrl() at Microsoft.SharePoint.SPWeb.get_Url() at Microsoft.SharePoint.SPContentTypeCollection.FetchCollection() at Microsoft.SharePoint.SPContentTypeCollection..ctor(SPWeb web, Boolean bAll) at Microsoft.SharePoint.SPWeb.get_ContentTypes() the code is below: SPWebApplication webApp = SPWebService.ContentService.WebApplications[someGuid]; foreach (SPSite spSite in webApp.Sites) { using (SPWeb spWeb = spSite.RootWeb) { try { foreach (SPContentType spContentType in spWeb.ContentTypes) { ... }}}.. Could anybody provide me with workaround or with the reason of the problem.

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