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• Ubuntu 11.10 problem with Nvidia

  - by dariush

  I have an acer with a Gforce graphics card. I installed ubuntu 11.10 and it was working properly until I installed Nvidia drivers via additional drivers, I hit "nvidia-xconfig" in terminal and then reboot. At startup lightdm fails to start. I changed /etc/X11/xorg.conf file back to default and reboot. It works properly, but with the default Ubuntu driver. I want to reconfigure Nvidia and use it. Can anyone tell me what should I do?

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• How to use only intel graphics and power off radeon?

  - by luizrogeriocn

  I've been using Linux for quite a while in everyday computing and programming. But now i got this new laptop with amazing battery life on windows which runs pretty cool even while gaming. But for some reason on Ubuntu I get like 1/3 battery life and it gets hot even while browsing the web. I have the proprietary drivers for radeon, but I'm thinking about upgrading from Ubuntu 12.04 to 14.04, and I would like to know how can I use only the Intel graphics and have radeon always turned off? Since I do not need the discrete graphics on Ubuntu and I'm pretty sure my problem is related to the radeon sucking up my battery and generating heat. My laptop technical specifications are: Dell latitude 3540 Intel core i7 4500U (with Intel hd4400 graphics ) Ati Radeon HD 8850m with 2GB GDDR5 VRAM 8 GB DDR3L @1600mhz Toshiba 256gb SSD Ubuntu 12.4.3 If you need any additional info, please tell me :)

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• What is the minimum of shader I need to use to run basic calculation on GPU?

  - by Jinxi

  I read, that the Hull Shader, Domain Shader, Geometry Shader and Pixel Shader can be used optional. So, is the Vertex Shader optional too? If no: What does a basic Vertex Shader look like? Just like a simple pass through? Is the Vertex Shader necessary to tell what kind of datastructure (Van Stripes or Meshes) are used? What can I do, with just the vertex shader? Are the fixed functions working without any help of programming a programmable stage?

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• Editing gtk theme (adding a border)

  - by chadgh

  I am using a GTK theme which I love except that it doesn't have borders around the windows. If I am on a web page (for example) with a white background and my wallpaper is white I don't know where the web page starts. What is worse, sometimes that type of thing happens with other windows, where I can't tell where the one window start and the other ends. Is there a way to edit GTK themes? More specifically, is there a way to edit a theme so that it will display a border around windows?

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• What is the good way of sharing specific data between ViewModels

  - by voroninp

  We have IAppContext which is injected into ViewModel. This service contains shared data: global filters and other application wide properties. But there are cases when data is very specific. For example one VM implements Master and the second one - Details of selected tree item. Thus DetailsVm must know about the selected item and its changes. We can store this information either in IAppContext or inside each concerned VM. In both cases update notifications are sent via Messenger. I see pros and cons for any of the approaches and can not decide which one is better. 1st: + explicitly exposed shared proerties, easy to follow dependencies - IAppContxt becomes cluttered with very specific data. 2nd: the exact opposite of the first and more memory load due to data duplication. May be someone can offer design alternatives or tell that one of the variants is objectively superior to the other cause I miss something important?

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• Visual Studio 2010 HTML5

  - by Renso

  Goal: Enabling HTML5 validation and  IntelliSense for Visual Studio 2010. By default it is set to XHTML 1.1. HTML5 support only came included with SP1 of Visual Studio 2010. However since HTML5 is not an official standard as yet and some of the 30 new elements are not suported in all browsers, so only a subset of the entire HTML5 specification is supported; support for both intellisense and validation for HTML5 with SP1. How to: After installing SP1 you have to tell Visual Studio to start using the HTML5 schema. Go to Tools -> Options, and then select Text Editor -> HTML -> Validation. Select HTML5 or XHTML5 as the target schema. So start building or converting older Visual Studio projects to HTML5 and CSS3 web applications.

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• Can i talk directly to manager for job offer in company

  - by user1315279

  I am thinking of going directly to companies and then giving them resume directly rather than by email. I know 60% of comapnies don't like it but there is still 40% of getting into something. My few friends have landed the jobs this way. I just want to know that when i reach the company , should i ask the receptionist for manager and talk directly to manager or first i should talk to receptionsist and tell her what i want. May be receptionist won't call the manager if she knew my intenstion. how should i proceed. Please help. I am thinking even if i can get some free internship for 2-3 months even that will be good. so that i can get my foot in. Is that ok to ask for internship or company may have problem with that

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• Can emsripten compile down to Canvas-based Js instead of WebGL?

  - by Sebastian Scholle

  I understand that emscripten compiles down LLVM to JS and it converts OpenGL Calls to WebGL. Thats a fairly simple translation. Is there a way to tell emscripten to use some other graphics Library ( for example Pixi JS ) for its rendering code translations? Is the compiled JS code easy to update or would it be better to merge in your own Graphics API that handles WebGL/Canvas calls. IE: can we use a C++ Graphics Wrapper Library that when compiles to JS, will simply plug into our own JS Graphics Wrapper Library? Im assuming YES, but has anyone tried this? And if So, what would be your technique, as my C++ skills are basic.

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• UI font has rendering glitches in GNOME Shell

  - by user353889

  I don't really know how to describe this problem in English. A picture can say more words - look at the tabs at the top of the linked image. The current font settings are shown as well. I don't know what basic info I should provide so if something missing, please tell me. Ubuntu 12.04 GNOME Shell 3.4.1 I know, a reboot can make everything normal but I'm looking for a more permanent solution that can fix this problem (or bug). Update Thanks for Fitoschido, I finally know what keyword I could use for googling. I think it's a bug of gnome shell. https://bugs.archlinux.org/task/34847

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• Serverless Web Application

  - by Andrea Di Persio

  In my company we work on a software that produce reports in html format. My bosses love the fact that static html pages can be moved across computer simply by moving/copying a folder and no web server is involved, so the customer only need a browser. The problem is that they asking me to implement a lot of feature which is very hard to implement properly and in a clean way without an application server. Frames cross domain problem, the impossibility to work with GET and POST data, no URLs routing...is very hard to work with this limitations. Anyone had similiar experience and wants to share their tricks/suggestion ? Do I need to tell my boss 'there is no future without a web server'? Regards.

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• USB modem dosn't working in Ubuntu

  - by skeeph

  In Ubuntu 12.10 USB-modem Huawei 171 from MTS is not connected to the network. First on the message "Are you registered on the network", immediately after that, "You are disconnected from the network." This happened after there was an internal error notification Ubuntu. I did not pay attention, and closed by sending the report. After the reboot does not work. Settings are not changed. I am online with this modem in Windows 8. Could you tell me why it is not working,please thank you in advance P.S Sorry for my English. It's foreign language for me. Please mention to me where are my mistakes. Thanks

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• That's all about nuances

  - by user13334359

  When I sent a proposal for session "Managing and Troubleshooting MySQL for Oracle DBAs" to MySQL Connect conference org committee it had not any mention of Oracle in its name, but later I was asked to provide more details for former Oracle DBAs who want to use MySQL. I was fast and I said "yes".So my original aim to teach people to troubleshoot MySQL changed to teaching of how different is MySQL from Oracle in troubleshooting aspects. Although both RDBMs have very much in common they are definitely very different. So what I am going to speak about this time is nuances of how MySQL stores data, how it manages locks, why its high availability solutions: MySQL Cluster and Replication have same names as Oracle's, but work differently and more. And, of course, I will tell how to troubleshoot it all.

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• Which software should I use on Ubuntu to create a Windows XP LiveUSB? [closed]

  - by user92241

  Possible Duplicate: How to create Windows XP LiveUSB using Ubuntu to replace it Since many programs that I need only work on XP, I need to install Windows XP on my 2 laptops but I can't use an optical drive, which makes using a USB the only option. If it helps, I can tell you that I used to have Vista and Windows 7 on my 2 laptops but I clean installed Ubuntu 12.04 on one, and Lubuntu on the other. Also I have no trace of Windows left on any of my laptops, when I bought my laptops they came without a Windows CD, so I only had a 20GB partition on my hard drives (which I formatted when I clean installed Ubuntu and Lubuntu.) Also, I have no problem with clean installing Windows XP and the reinstalling Ubuntu/Lubuntu so I can dual boot. Thanks! Edit: I have a ISO file ready, on a USB.

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• Good interview programming projects

  - by bigtang

  I'm looking for some small programming projects that I can give potential employees to gauge their programming abilities. These will be programmers straight out of college. I'm looking for projects that would take someone a couple of hours and they would email back their answers post-interview. One example would be to take this paragraph of text and return a list of alphabetized unique words. After each word tell me how many times the word appeared and in what sentance(s) the word appreared in. Anyone have any good suggestions?

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• Dynamically change page content based on URL parameter?

  - by volume one

  The title of my question seems simple but here is an example of what I want to do: http://www.mayoclinic.com/health/infant-jaundice/DS00107 What happens on that page is whenever you click on a link to go a section (e.g. "Symptoms") in the article on "Infant Jaundice", it provides a URL parameter like this: http://www.mayoclinic.com/health/infant-jaundice/DS00107/DSECTION=symptoms As the DESCTION parameter changes, you get different content on the same page DS00107. The content changes as well as <meta keywords>. Can someone please tell me how this is achieved? I was thinking it was an if/else situation programmed into the page itself to display different properties depending on the URL parameter. Any help or suggestions are very much appreciated and my thanks to you for reading my question.

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• STL for games, yea or nay?

  - by munificent

  Every programming language has its standard library of containers, algorithms, and other helpful stuff. With languages like C#, Java, and Python, it's practically inconceivable to use the language without its standard lib. Yet, on many C++ games I've worked on, we either didn't use the STL at all, used a tiny fraction of it, or used our own implementation. It's hard to tell if that was a sound decision for our games, or one simply made out of ignorance of the STL. So... is the STL a good fit or not?

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• System doesn't show option to select operating system during startup!

  - by samsher

  i am new at linux and ubuntu, today i installed ubuntu 12.04 but during installation some problem happened, i don't remember what was that exactly (but can tell you that it was related to boot), so i reinstalled ubuntu (using usb stick both time) and ubuntu installation finished successfully, Now problem is that when I start my computer then system is directly selecting ubuntu as my operating system, i have installed it along with windows 7 in option during installation, so it should give me option to select which operating system i want to use. I don't know what may be the problem. Also, I want to know where ubuntu is installed (which directory)? i just selected default setting during installation as i am noob in these things.

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• Problems after upgrading to 14.04 (only background and pointer after login)

  - by fabikw

  After upgrading from 12.04 to 14.04 I could log in to my X session (albeit with really low graphics). While trying to fix the graphics, I managed to break the X session. Now, after typing my password in the unity-greeter, the items disappear and I can only see the desktop background and the pointer. This happens for every user. I can still log in in tty's. How can I solve this? Also, I cannot seem to be able to install nvidia-current as it tries to install nvidia-304 and it depends on old video-abi libraries. Is there a way to tell the package manager that nvidia-current should use a newer version?

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• Change the scale-policy of OpenGL ES in Android?

  - by wanting252

  I currently develop a game for Android in OpenGL ES 1.0, use libgdx library. I target the 720x480 screen size. For example, I design only one arts pack for 720x480. And what will happen in Android phones with screen-size smaller or bigger than it, 480x320 for instance? Could you please tell me how to change the scale-policy of OpenGL ES in Android? Or in libgdx specially? Is there anything like "Resample Image" like photoshop?(Nearest Neighbor, Bilinear, Bicubic etc..) for libgdx? Edit: I found some tutorials about texture filter in OpenGL, test it with Linear and Nearest. Linear is good for scaling but slow down the game, and Nearest is on the contrary. What should I do to get a balance between those?

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• How can I acheive a smooth 2D lighting effect?

  - by Cyral

  I'm making a tile based game in XNA. So currently my lightning looks like this: How can I get it to look like this? Instead of each block having its own tint, it has a smooth overlay. I'm assuming some sort of shader, and to tell it the lighting and blur it some how. But im not an expert with shaders. My current lighting calculates the light, and then passes it to a spritebatch and draws with a color parameter. EDIT: No longer uses spritebatch tint, I was testing and now pass parameters to set the light values. But still looking for a way to smooth it.

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• is requiring a video player download acceptable

  - by wantTheBest

  Our site currently is going to require our users to download a player to view videos they will want to view on our site. The videos get uploaded by users from various sources (smartphones in 3gp format for example). However most people have Flash on their machines. I am trying to 'make a gentle stand' and tell the team that requiring a download of a video player is not acceptable. My thinking is this: instead of allowing people to upload 3gp and other formats then re-serving the exact format on REQUESTs from our site's users we will instead use a video converter such as FFMpeg to convert every uploaded video to FLV for viewing on flash. so when a user requests to view one of the videos on our site -- boom they probably already have Flash installed so we just play the video in their Flash player. I feel serving up FLV flash video is best. Does it ring true that requiring, say, a 3gp player download just to view a video is the wrong approach?

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• How can I choose a different Ubuntu One default local folder?

  - by hellpe

  I would like to tell Ubuntu One to sync with '~/Public/Ubuntu One' rather than '~/Ubuntu One'. Since I'm using it on Arch Linux, I don't have any right-click option for that. I tried to edit ~/.config/ubuntuone/syncdaemon.conf and add the line root_dir = ~/new/folder (as suggested in this thread), but the file is automatically reverted to its previous state. Also, the command u1sdtool hangs and does apparently nothing - I have to use Ctrl + C to close it. Is there another way to setup the default Ubuntu One default local folder?

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• Trouble setting up openVPN/VPN

  - by kkiller23

  I'm having trouble setting up a VPN on my VPS that's running Ubuntu 11.04. I'm been following this guide http://tipupdate.com/how-to-install-openvpn-on-ubuntu-vps/ I'm able to start the VPN, but the command it tell's me to do after I start the VPN doesn't work for me. I've tried it about 5 different way's and i'll show you what i get now. :~# iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT iptables: No chain/target/match by that name. :~# iptables -A FORWARD state --state RELATED,ESTABLISHED -j ACCEPT Bad argument `state' Try `iptables -h' or 'iptables --help' for more information. I just can't get that to work and the VPN doesn't seem to be workign with out it. Can someone help me fix this?

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• gt 555m instead of gt540m

  - by gangov

  Im gonna be really short. My Acer Aspire 5755G lap top has a Nvidia geforce gt 540m. But when i start lspci | grep VGA it shows me the following: ^[[Agangov@gangov-Aspire-5755G:~$ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: nVidia Corporation GF106 [GeForce GT 555M] (rev a1) Im really not familiar with the additional drivers in ubuntu. Can somebody tell me what should i do you my VGA properly?? Thank you in advance.

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• How to keep google rank and index for a page that changed its url? [closed]

  - by ProSoft

  Possible Duplicate: How to tell Google that I have changed my website URLs? Recently, I changed URL of my web page. Of course, I do it by URL rewriting. And now, I want to keep the rank of this page in Google and Bing. For example: Main address of the page: http://mywebsite.com/page1.php Virtual address by URL rewriting: http://mywebsite.com/page And new address is: http://mywebsite.com/newTitlePage Now, when I open this page by search in Google, I face to 401 error (not found). How should I do it?

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