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  • Need to run `nvidia-xconfig` before booting

    - by RobinJ
    I formatted my whole hard drive, and installed Elementary OS (Ubuntu 10.10) on it in an attempt to get rid of all the problems. It failed. Every since I installed the nvidia-current drivers I first need to boot into recovery mode, and run sudo nvidia-xconfig before booting the system in the normal way. If I don't do this, it will just stop at a black screen after the boot screen, responding to nothing but CTRL+ALT+DELETE and the power button. When I boot the system after running the nvidia-xconfig command I can just start working as usual. Update I suspect it's got something to do with Plymouth. I shall have to try it again before I can confirm it, but removing the quiet and splash parameters from the kernel line in /boot/grub/grub.cfg seems to help. But still, I like my Plymouth screen. A black screen with text rolling over it (or without the text) doesn't attract me much.

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  • Does putting types/functions inside namespace make compiler's parsing work easy?

    - by iammilind
    Retaining the names inside namespace will make compiler work less stressful!? For example: // test.cpp #include</*iostream,vector,string,map*/> class vec { /* ... */ }; Take 2 scenarios of main(): // scenario-1 using namespace std; // comment this line for scenario-2 int main () { vec obj; } For scenario-1 where using namespace std;, several type names from namespace std will come into global scope. Thus compiler will have to check against vec if any of the type is colliding with it. If it does then generate error. In scenario-2 where there is no using namespace, compiler just have to check vec with std, because that's the only symbol in global scope. I am interested to know that, shouldn't it make the compiler little faster ?

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  • How to approach multiple page form with just one save option

    - by Dano007
    The screen shot shows the magento product upload page. The left nav allows you to switch to different options for the product. Basically each option in the left nav appears as a different page. However when you save and close, it will save all the updates made on each page. Using Foundation4, html, css, js - what would be the best approach to replicating something similar? Say I want 3 pages and one save button option. Using http://foundation.zurb.com/docs/components/section.html#panel2 and having the save buttons the top line form level seems a possible option.

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  • Removing a module when I add a new better one?

    - by yinon
    I'm using this guide to install my TL-WN822N (Wireless/Wifi). I need to add 8192cu at the end of /etc/modules, but I see another module there (Copy-Paste file): # /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines beginning with "#" are ignored. # Parameters can be specified after the module name. lp 8192cuvhba vhba Should I remove it or is that unnecessary? Thanks for any help!

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  • Programming Interview : How to debug a program?

    - by Jake
    I was recently asked the following question in an interview : How do you debug a C++ program ? I started by explaining that programs may have syntax and semantic errors. Compiler reports the syntax errors which can be corrected. For semantic errors, various debuggers are available. I specifically talked about gdb, which is command line, and Visual Studio IDE's debugger, which has a GUI, and common commands. I also talked about debug and release version of code, how assertions should be used for debug build, how exceptions helps in automatic cleanup & putting the program in valid state, and how logging can be useful (e.g. using std::clog). I want to know if this answer is complete or not. Also, I want to hear how other people will go about answering this question in a structured manner ? Thanks.

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  • OutOfBounds Exception when creating a PolygonShape using jbox2d

    - by B3nGr33ni3r
    So here's the deal, i'm parsing a file that contains the vertices for a polygon, that i want to create in box2d. I create a new PolygonShape() and then call .set() giving it a defined array of Vec, and that defined array's .length property. I expected this to work, since the documentation for jbox2d says this method takes a Vec array, and the count of Vec objects in that array. However, it errors out, and it seems to be unrelated to my code. The error i get is Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 8 at org.jbox2d.collision.shapes.PolygonShape.set(PolygonShape.java:174) and, upon looking at that line in the jbox2d svn repository, i still cannot figure out the issue. Any help is appreciated!

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  • Using apt-get from Canada

    - by Advant Edge
    I am using Ubuntu Server 12.04 LTS, and until yesterday, everything was quite peachy. I have installed several packages (MySQL, apache2) and to my knowledge have those configured correctly. Upon configuration of phpMyAdmin, I found that I was missing the directory path /etc/phpmyadmin, which got me thinking about the install. I am new to Ubuntu, so I guess I missed the message telling me that I did not download phpMyAdmin successfully. Anyway, trying to use apt-get yesterday/today results in "Failed to fetch..." messages, even if just to run sudo apt-get update. Some notable details: ···no GUI, command line only (sudo apt-get gksu fails, go figure) ···can ping 4.2.2.2, so I know the internet is out there (somewhere) ···this is a dedicated computer, using Samba to share files with Windows, which does work ···attempted to edit my /sources.list file, for various American/Canadian mirror, to no effect ···ensured I have correct DNS settings in /etc/networks/interfaces I'm not sure where along the way it happened, but I seem to have lost connections to repositories... :) Any advice (including GO BACK TO WINDOWS) is appreciated.

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  • Is it common in companies that non-techs are doing analyzes

    - by Kubi
    It's been 2 months since I started working at an international big consulting company. I like my colleagues personally but it's like a joke since my first day. Analysts (people who has no idea about the tech. background) are planning the workflow and functions. In my case, none of my friends here even wrote even a single line of html. When I say Html, I doubt if they know what I mean. But they are deciding about really key decisions in a web system implementation project. Is this always like this?

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  • Java Error Using Loops [migrated]

    - by Shaun
    I am facing a error in Java using the method Loops. I am a basic user learning Java and I am following a book with teaches you the basics of Java. I have this problem when I use this code in my Java Program. It gives me an red line under my code. Here's my code: public class Game{ public static void main(String[] args){ for (int dex = 0; dex < 1000; dex++) { if (dex % 12 == 0) { System.out.println(“#: “ + dex); } } } } I have been following the tutorials correctly. I am a bit lost where I have gone or done wrong. I have my public static codes and such as you'd require in any Java programming. Here's are the error given): Cannot resolve method: 'Println(? , ?)' Expression expected ',' or ')' expected Unexpected Token ';' expected

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  • Make public webcam. Which protocol, which codec. (Using VLC)

    - by gsedej
    Hi! I want to use my old (1GHz) PC as webcam video stream server (like you can see those road cameras). I thought of using VLC and already tried using http output but it was not really good. Too cpu hungry, too big stream (kBps), not stable... I been reading VLC how-to's but thre is still a question. Which output should I use? Http, RTSP, UDP? I want to make for more than one computer at the same time (multicast). Which codec should be good? PC is not so fast so it shouldn't be too cpu hungry codec. Mpeg2, mpeg4, xvid? how much video buffer should I use (vb=?)? What about setting IP and ports? So I need some help with ideas, but if someone can make a VLC command line it's even better :) Oh, computer has direct internet connection and own IP.

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  • Should I understand SVN before I jump to GIT?

    - by John Isaacks
    I work in a department where no one has ever used source control before, including myself. I am trying to push the concept. I have spent a little while researching SVN. I some basics learned. I can Create/update/checkout/commit with command line and from Tortoise. I am starting to learn how to tag and branch but still confused a lot about conflicts between branches and trunk etc. I am still learning, but I do not have a physical person who can show me anything. Its all from books/tutorials and trial and error. From what I have read online it seems like git is the better thing to know, but its also more complicated. I don't want to overwhelm myself. Should I continue to master svn before moving to git or would I be wiser to just jump to git now? Are there pros and cons to both approaches?

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  • /etc/crypttab not working

    - by Jeremy Stein
    I used the Disk Utility to create an encrypted volume on an external drive. When I click the Unlock Volume button in that program, it mounts the drive for me. Now, I want to automate this process so that it will happen at boot-up. When I run sudo cryptsetup luksUUID /dev/sdb1, I get this: ca709269-1e3e-4e9e-9e08-7248f0e6c5a6 So, I create /etc/crypttab like this: backup_drive UUID=ca709269-1e3e-4e9e-9e08-7248f0e6c5a6 none And I added this line to /etc/fstab: /dev/mapper/backup_drive /mnt/backup ext3 default 0 2 When I reboot, Ubuntu tells me that the device is not available to map, so I tell it to skip it. It appears that the /etc/crypttab is not getting run correctly. How can I debug this?

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  • Stimulsoft Company Announces Stimulsoft Reports version 2010.1 release.

    March 29, 2010 -- Stimulsoft Company, an outstanding and leading manufacturer of software for business intelligence (reporting solutions for .NET, ASP.NET, WPF, Flex, PHP), has released version 2010.1 of Stimulsoft Reports. Stimulsoft Reports products help developers from commercial and non-profit organizations all around the world to be more productive and deliver feature-rich and flexible reports on time.   Stimulsoft Reports is the product line which includes reporting tools for .NET, ASP.NET,...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Bumblebee optirun appears to depend on Intel

    - by user206398
    I have a Lenovo T420 with Intel and Nvidia graphics. On upgrade to Ubuntu Saucy, I had to purge and reinstall bumblebee-nvidia to get beyond optirun failing to find a GPU driver. Now, "optirun glxgears" and "optirun sol" succeed, but optirun fails on 2 Virtual Life viewers that it supported in the past, Cool VL (CoolVLViewer-1.26.8.34-Linux-x86) and Imprudence (Imprudence 1.4.0 beta2). In both cases, the error output is huge, but it starts with libGL error: failed to load driver: i965 and libGL error: failed to load driver: swrast From the little I can discover, i965 is an Intel graphics driver, which should not be invoked at all. I haven't found any information about swrast. I suspect that some of the X configuration associated with Bumblebee has some Intel dependence that is invoked on certain library calls, but not others. I haven't discovered any definite information on this line. The Cool VL Viewer runs without optirun, but complains about the insufficiency of the Intel graphics.

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  • Shut down Netbook by closing lid - ubunti 13.10

    - by The Liquidator
    My wife has an Acer Aspire One (with the SSD Card and an SD expansion card). It has never been able to hibernate or suspend, always creating errors and occasionally trashing the data on the SD card, which is the home partition so it's unfortunate. To get around the problem I have set all exit methods to produce shutdown - she tends to simply shut the lid. I'm aware the default behaviour has for some time been to suspend, but I've got round that using the gnome tweak tool. However, I've just installed 13.10 and whilst I have installed the gnome tweak tool and set it to shut down the system appears to be ignoring/bypassing the setting, electing to suspend when the lid is shut. Can anyone tell me how to fix it please? I'm quite happy to get my hands dirty with the command line.

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  • are there compiler options in clang? [on hold]

    - by Deohboeh
    I am learning from The C++ Primer. One of the exercises is to compile a program with arguments in main(). For this I am trying to use mac terminal. I need to compile a C++11 Unix executable file named "main" which takes “f" as an argument. I am using Xcode 4.6.3 on OS X Lion. I compiled the program with clang++ -std=c++11 -stdlib=libc++ main.cpp -o main. But don’t know what to do next. I found -frecord-gcc-switches while searching compiler options on google. It does what I need to do. Is there a clang version of this? Please use simple language. I have never used command line before. I tried going through the clang user guide but a lot of it is out of my depth.

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  • Why does 'quickly package' fail with "An error has occurred when creating debian packaging"?

    - by slashcrack
    I've got a big problem with packing my quickly application for the Ubuntu App Showdown. When I try to package or submit my application, I get some warnings: quickly package ........ ---------------------------------- WARNING: syntax errors in facebook/FacebookWindow.py: encoding declaration in Unicode string (FacebookWindow.py, line 0) WARNING: the following files are not recognized by DistUtilsExtra.auto: AUTHORS~ facebook/AboutFacebookDialog.py~ facebook/FacebookWindow.py~ facebook/PreferencesFacebookDialog.py~ facebook/__init__.py~ facebook_lib/AboutDialog.py~ facebook_lib/Builder.py~ facebook_lib/PreferencesDialog.py~ facebook_lib/Window.py~ facebook_lib/__init__.py~ facebook_lib/facebookconfig.py~ facebook_lib/helpers.py~ setup.py~ ---------------------------------- An error has occurred when creating debian packaging ERROR: can't create or update ubuntu package ERROR: package command failed Aborting What does the second warning mean? How do I solve those warnings? I want to submit my app to the Ubuntu App developer Showdown into my PPA and it doesn't work. Thanks for any answer.

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  • Managing a manager who expects too much

    - by dotnetdev
    I am in 3rd line support. We do a lot of bug fixing (although we should be doing other stuff). Quite often, we get systems which are so badly designed and configured (at the server OS level and software level) that they are beyond repair. Yet my manager, even though he was a dev, may swear when I tell him the system is unrepairable (As the person who does our server work gives an opinion that it's FUBAR). However, he still expects it to work without a rebuild. How can I make it work like that when a guy with a million years more experience says the system needs a rebuild?

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  • Why is ComboBoxText giving me a "no attribute" error?

    - by boywithaxe
    I'm trying to add a text Combo Box into my app. I've created in and populated the list but when I I try to print out the active text I get an error. Here's the part of the code in question: def on_netif_changed(self, widget): netif = widget.gtk_combo_box_text_get_active_text() print netif And the error I get: Traceback (most recent call last): File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 44, in on_netif_changed netif = widget.gtk_combo_box_text_get_active_text() AttributeError: 'ComboBoxText' object has no attribute 'gtk_combo_box_text_get_active_text' I'm a bit at a loss here, I've no problem betting text from text boxes, but this seems a completely different issue. I tried RTFMing but came up short. I would appreciate any suggestions.

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  • How do I change local display resolution via SSH?

    - by krumble1
    I have a machine running Ubuntu Server 12.04 LTS and I'm having problems with the local monitor. The Dell flat panel I'm using only displays this message while the computer running: "Cannot Display This Video Mode" and then the information: "Optimum resolution 1280x1024 60Hz". I'm fairly new to using an operating system wholly via command line but I'm learning fast. :) I can access the server fine via SSH so using it is not a problem. However, for where it is positioned at the moment, it would be much more convenient to use the computer locally. I'm just wondering how to change the local screen resolution via SSH to something usable by my monitor. Thanks for your time! BTW: I have also tried switching displays and I still have the same problem. Also BTW: I tried putting in the xrandr command and all I get back is: Can't open display

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  • CSS hover behavior inconsistent on desktop/mobile devices [migrated]

    - by tbart
    I have a strange problem: This page looks good on desktop browsers, but the hovering effect does not seem to work correctly on at least my CM7 Android 2.3.7 device. I know hovering is not supposed to work on touch displays as it does with a mouse, but I'd like to have touch feedback, i.e. the highlight color should show once the user has tapped a menu item. This does work when the link is just a href="#" but it does not when it is a real link. I tried all sorts of stuff as you can see, to no avail. If you go back in the browser history after having tapped a real link, the item is highlighted, so the browser understands the CSS I am throwing at it. However, the javascript alert makes it clear that it only seems to interpret the link opening action and does not care about the color changing stuff. Weird that is. Workarounds welcome, preferable without javascript, but if it has to be JS, then go ahead! either go here: http://orpheus.co.at/hoverprob and Use the source, Luke! or see it here in all its glory: <html> <head> <meta name="viewport" content="width=320"> <style> #nav, #nav ul { width: 100%; float: left; list-style: none; line-height: 1; background: #fff; font-weight: bold; padding: 0; margin: 0 0 5px 0; } #nav a { display: block; color: #001834; text-decoration: none; padding: 5px 7px; } #nav li { float: left; padding: 0; width: 33%; } #nav li ul { position: absolute; left: -9999px; height: auto; margin: 0; opacity: .95; width: 100%; } #nav li a { text-align: center; height: 20px; line-height: 20px; } #nav li ul li a { text-align: left; } #nav li ul li { float: none; /* width: 316px; */ width: 100%; } #nav li:hover ul ul, #nav li:hover ul ul ul, #nav li.sfhover ul ul, #nav li.sfhover ul ul ul { left: -9999px; } #nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li.sfhover ul, #nav li li.sfhover ul, #nav li li li.sfhover ul { left: 0; } #nav li.educate { background: #FFF0B8; /* background: #FF0000; */ /* border-radius: 5px; */ border: 5px; } #nav li.educate:hover { background: #FFCE00; /* border-radius: 5px; */ } </style> </head> <body> <div id="mobMenu"> <ul id="nav" class="nav"> <li class="educate"><a href="#">menu</a> <ul class="educate"> <li class="educate"><a href="#">href=&quot#&quot;, works</a></li> <!--(+emtpy onmouseover for iPose devices)--> <li class="educate"><a onmouseover="" href="index.html">does not work, real link</a></li> <li class="educate" id="bla"><a onmousedown="document.getElementById('bla').style.backgroundColor='Blue'; alert('Done');document.location='index.html';" href="#">JS, not interpreted in corr order</a></li> </ul> </li> </div> </body>

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  • Does e-commerce platform matter for branding

    - by c s h
    The place I work is now looking into developing a new e-commerce site on the Magento platform. Magento will fill all of our needs. I was just wondering if it is in anyway unprofessional doing it this way (Impression is something we are really worried about), will people who visit the site look at our business different knowing we used Magento or any other e-commerce platform. There are ways to find out. I use Chrome Sniffer to find out what platforms are used to develop each site, there are other tools available for different browsers. Bottom-line: Will an e-commerce platform affect the trust in my brand?

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  • How can I change my career from windows server admin to software developer?

    - by hyder
    well am an Engineering Graduate in Telecommunication Engineering... I got into Server Support job soon finishing my college ,as at that time it was a recession period ... I have total exp of 2 years in windows server support but due to multiple shifts environment I want to change my profile into software line. Please suggest what would be best for me to take next step.. what exactly course\certification I should do to change my profile as software Developer. Am interested in making my career in software ..please advise as I am in big confusion and not able to work with full satisfaction!! Thank you....

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  • How to write loosely coupled classes in node.js

    - by lortabac
    I am trying to understand how to design node.js applications, but it seems there is something I can't grasp about asynchronous programming. Let's say my application needs to access a database. In a synchronous environment I would implement a data access class with a read() method, returning an associative array. In node.js, because code is executed asynchronously, this method can't return a value, so, after execution, it will have to "do" something as a side effect. It will then contain at least 1 line of extraneous code which has nothing to do with data access. Multiply this for all methods and all classes and you will very soon have an unmanageable "code soup". What is the proper way to handle this problem? Am I approaching it the wrong way?

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  • Startup applications 14.04

    - by gpalthrow
    I'm trying to mount 3 partitions by default when I log in. I used to do that with the start up applications in 12.04 However there seems to be a nasty bug in 14.04 where false command duplicates are removed (apparently, only the command is taken into account, even if the arguments differ). I tried using one single command instead of 3, putting all the devices in one line (something like /usr/bin/udisks --mount /dev/sdb1; /usr/bin/udisks --mount /dev/sdb2; /usr/bin/udisks --mount /dev/sdb3; ) However it does not seem to work either. What can I do to have 3 partitions mounted by default (with their label) ?!

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