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• Using glReadBuffer returns black image instead of the actual image only on Intel cards

  - by cloudraven

  I have this piece of code glReadBuffer( GL_FRONT ); glReadPixels( 0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer ); Which works just perfectly in all the Nvidia and AMD GPUs I have tried, but it fails in almost every single Intel built-in video that I have tried. It actually works in a very old 945GME, but fails in all the others. Instead of getting a screenshot I am actually getting a black screen. If it helps, I am working with the Doom3 Engine, and that code is derived from the built-in screen capture code. By the way, even with the original game I cannot do screen capture on those intel devices anyway. My guess is that they are not implementing the standard correctly or something. Is there a workaround for this?

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• Framework Folders and Duplicate File Names

  - by Kevin Smith

  I have been working with Framework folders a little bit in the past few days and found one unexpected behavior that is different from Contribution Folders (Folders_g). If you try and check a file into a Framework Folder that already exists in the folder it will allow it and rename the file for you. In Folders_g this would have generated an error and prevented you from checking in the file. A quick check of the Framework Folder configuration settings in the Application Administrator’s Guide for Content Server does not show a configuration parameter to control this. I'm still thinking about this and not sure if I like this new behavior or not. I guess from a user perspective this more closely aligns Framework Folders to how Windows handle duplicate file names, but if you are migrating from Folders_g and expect a duplicate file name to be rejected, this might cause you some problems.

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• Revamped Joomla site to Google search engine

  - by user3127632

  I am about to upload a revamped site of Joomla (update from 1.5 to 2.5 + changes). I currently have a test bed subdomain that I am currently working on. In few days I am about to do the swap and replace the old site with the new one. I am worrying about Search Engines and specifically Google. The site currently has a very good rank (appears 2nd in the search), what actions do I have to take in order to be updated and preserve the rank? (except submitting the new sitemap I guess). It's not a difficult task but because I don't have the option to be wrong or mistakes to be done I an asking for a more "expert" advice.

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• Ubuntu partitions on Dell XPS13

  - by Francois

  I bought a Dell XPS13 with ubuntu 12.04 pre-installed. I want to reformat and repartition the machine but as I'm far from being a linux guru, I'm afraid to erase something important that could have been preinstalled by Dell. On the disk, there are 3 partitions: /dev/sda1 - Ext4 Linux bootable 248GB - witch is the system+user partition I guess, /dev/sda2 - Extended (?) of 8GB - What is this partion about? /dev/sda5 - Linux Swap of 8GB - whitch is for RAM and need to be reconduct (why only 1xRAM and not 2?) Do I have to care about /dev/sda2 ? According to you can I reformat to create a partition for /home whitout losing anything important (except user data of course) ? Thank you for your help

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• Keeping rackspace vserver alive

  - by mit

  It appears to me that rackspace somehow freezes cloud VMs after some idle time. This means the first page request to a php page takes much longer to respond than the subsequent requests. This is in some cases good, in other cases not acceptable. I am actually querying a machine with wget from a different host now to keep it "alive". But I wonder what frequency would be necessary. Does anyone know the time period after which they send a VM to "sleep"? I guess it would be some minutes. EDIT: There is absolutely no caching involved on the php site. It just recently moved from another vhost and there was never such latency on the first request.

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• NDC 2011!

  - by Chris Hardy (ChrisNTR)

  I'm luckily getting the opportunity to speak at NDC 2011 this year. Last year was a blast and I'm sure 2011 is going to be no different. I'm going to be speaking on the second day ( Thursday June 9th ) and I'll be joined in track four with some other awesome mobile guys too! At the moment, the whole agenda hasn't been confirmed and I guess is still likely to change so make sure you keep on checking for new speakers. Don't forget that Scott Guthrie is keynoting the whole conference! I'm going to be...(read more)

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• Functions returning pointers

  - by fg nu

  C++ noob here. I have a very basic question about a construct I found in the C++ book I am reading. // class declaration class CStr { char sData[256]; public: char* get(void); }; // implementation of the function char* CStr::get(void) { return sData; } So the Cstr::get function is obviously meant to return a character pointer, but the function is passing what looks like the value (return sData). Does C++ know to return the address of the returned object? My guess would have been that the function definition would be return &sData.

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• Active Directory auto login to website for domain users

  - by Darkcat Studios

  I am putting together an Intranet for a company - I have set up authentication to get into the Intranet from a login box linked to AD via LDAP/ However the client wants (if possible) to have users automatically authenticate into the intranet if they are logged into the domain. AD and IIS7.5 are on separate servers (in the same network). I believe that I need to use WindowsAuthentication to do this - but will that work? as the web server is not part of the domain: do I need to tell IIS where the AD server is? The next part could be more complex: once the user has authenticated, I need to drag user details from AD about the user, I guess with LDAP, however I will need to know the user's username in order to do this, won't I? as the user hast had to type this in, how do I get that? The intranet site is in asp.net 4 VB.

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• First time using Ubuntu, need help with drivers!

  - by Nick

  I have just successfully built my first computer last night. I went through the boot menu and got Ubuntu 12.10 installed properly and everything. My question is...now what? There has to be some sort of drivers I need to install right? I can't connect to wi-fi or anything of that sort. I have an ASUS motherboard, model number M4N98TD EVO , and an NVIDIA Geforce GTX 650 grpahics card. I guess my main question is, can someone run me through step by step what I need to do after I install Ubuntu?

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• How can I convince my company to move to MVC?

  - by guanome

  I currently write web apps using asp.net web forms and getting my company to move to another technology is like [insert funny line here]. I would really like to start writing apps using MVC, but they fear any type of change. How is the best way to convince/ease them into using MVC? I guess this can go for moving to any new technology. Update Decided to go the rogue developer route and just started using it. I recreated a small app in MVC and learned the ropes that way, and moved up from there.

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• today's multi-device world for web development

  - by paul smith

  With the huge explosion of mobile devices and addition of HTML5/CSS3, there seems to be a shift towards "responsive" designs (i.e., adapting to smaller screen sizes) which seems to be achieved using CSS3's Media Queries. My question is, given the current need of adapting to both desktop and mobile, is it common practice to actually organize two versions of your website (one for desktop and one for mobile)? Or is there just one version with different css files for targeting different devices and screens? Handling just cross-browser (ie6, ff3, opera9, etc...) HTML4/5, CSS2/3 was already hard enough, but now we're expected to handle cross-device (phone, tablet, etc...) as well, so my assumption is company's would create a separate project for mobile and redirect based on the user agent, but this is just a guess.

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• Lubuntu 12.04 is a non-LTS release - does this mean that LXDE isn't, either?

  - by MHC

  Lubuntu 12.04 is not a long-term-support release. That's mostly due to a lack of manpower. But I don't use Lubuntu on my machine, I use LXDE over stock Ubuntu 12.04 LTS. So my question is: In the next five years, will there be security updates and bug fixes for LXDE-packages such as Openbox, PCmanFM and LXsession? Or does the "LTS" in 12.04 LTS only include stock Unity packages? I guess this question is just as relevant for any other DE out there.

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• Are python's cryptographic modules good enough?

  - by Aerovistae

  I mean, say you were writing professional grade software that would involve sensitive client information. (Take this in the context of me being an amateur programmer.) Would you use hlib and hmac? Are they good enough to secure data? Or would you write something fancier by hand? Edit: In context of those libraries containing more or less the best hashing algorithms in the world, I guess it's silly to ask if you'd "write something fancier." What I'm really asking here is whether it's enough on its own.

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• Develop an android and iPhone application with shared database

  - by Bongo

  I have a great idea for smartphone application, And I want to develop an application suited for both android and iPhone. In addition I need to use spatial database for geo indexing that will be shared for both applications. I am new to this app world and I have some questions. Is there away to develop for both machines? I know java but not objective c. My guess is that I need to separate the database from the computing to support both applications. What are the best cloud computing providers with spatial database support that can host the server? Do I need 2 hosting servers or there is one server the can support the both of them? which database provider can support geo indexing and support this intergraion, I prefer providers with reasonable free quotas. Thanks.

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• How to structure my AdWords campaign for testing and different groups of keywords?

  - by Romain Dorange

  I am starting an AdWords campaigns and I will measure conversion rates using the AdWords conversion tracking pixel. Conversion might be account creation or a concrete sale. As it will be a test campaign to have some insights on CTR, CR, etc... on the future, I am likely to try several configurations: Two different ads with different landing URL and messages: one with a focus on the product / the other will contains a discount embedded in the URL. 4 different groups or themes of keywords. I guess I have to build 4 ads groups based on the keywords 2 ads with the different messages assign the two ads to each ads groups follow the campaign precisely in the ads tabs where I can see the effectiveness of each Ads per Ads Groups (for a total of 8 lines of reporting) Also, what are the key performance indicators that I can have from an AdWords campaign to measure global effectiveness? measure of return on investment from concrete sales (tracking pixel with e-commerce tag on confirmation page) measure o return on investment from leads acquisition (tracking pixel on account creation) measure of traffic increase with the campaign

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• why write-enable ring

  - by SpashHit

  Here's an "interview question" that while ostensibly about hardware really does inform a software design principal as well. Computers used to (still do I guess, somewhere) use magnetic tape reels to store data. There was a plastic accessory you could attach to a tape reel called a "write-enable ring". If the tape had such a ring, the tape drive allowed writing to the tape... if not, it only allowed read access. Why was the choice to design the system in this way? Why not have a "write protect ring" instead, with the opposite effect?

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• How do i stop or turn off the x-server?

  - by Alex

  im trying to do this tutorial: http://wiki.accelereyes.com/wiki/index.php/Installing_CUDA_Under_Ubuntu_10.04 I need the command that would completely stop/turn off the x-server. when i try to install the nvidia developer driver, i get a blue screen telling my Error:cant install with x-server running, please turn it off (something like that). "sudo service gdm stop" worked at the time i guess, (didnt give any errors) but the x-server is still running. is this the command i should be using? thanks for anyhelp!

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• Can I minify Javascript that requires copyright notice?

  - by Nathan Long

  I guess this is actually a legal question, but it relates to software. I'm about to include a JS plugin in a project. The comments include: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Is using this in my web site "redistribution?" If I minify this to conserve bandwidth, I assume it will strip all comments. If the answer to #1 is yes, doesn't that imply I'm legally not allowed to minify it? (That would stink, since I was planning to auto-minify all JS as part of the deploy process.)

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• DLNA Server/Control Point like Windows Media Player

  - by csde_rats

  Yes, I know that most questions ending with "like Windows" are odd, but this one really bothers me ;) If you ever used some DLNA renderer (in my case DLNA-enabled loudspeakers) you probably know the handy "play to"-feature. From my knowledge of DLNA stuff I would guess, that Windows Media Player is both a DLNA server and control point here, so my question is: Is there any similar software for Linux accomplishing the same thing with minimal configuration effort? I normally use Banshee for my music library, but it doesn't seem that there is anything available for Banshee...

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• Using glReadBuffer/glReadPixels returns black image instead of the actual image only on Intel cards

  - by cloudraven

  I have this piece of code glReadBuffer( GL_FRONT ); glReadPixels( 0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer ); Which works just perfectly in all the Nvidia and AMD GPUs I have tried, but it fails in almost every single Intel built-in video that I have tried. It actually works in a very old 945GME, but fails in all the others. Instead of getting a screenshot I am actually getting a black screen. If it helps, I am working with the Doom3 Engine, and that code is derived from the built-in screen capture code. By the way, even with the original game I cannot do screen capture on those intel devices anyway. My guess is that they are not implementing the standard correctly or something. Is there a workaround for this?

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• HP Pavilion dv7 dual boot with ubuntu and original win7 issues

  - by Neasy11

  I just bought a hp dv7 and I want to dual boot it with the win7 it came with and ubuntu 12.04.1. I shrunk the C partition to make room for the ubuntu one then downloaded an burnt the iso. Next I booted from the cd and followed the simple instructions until I got to the page of the install to choose the partition where all choices were greyed out and the table was completely blank and the drop down only had one choice. After researching this I found that a main problem might be that I can only have 4 primary partitions and the computer was shipped with the 4 already (system,C,recovery,hp tools). I guess my question is what is the best way to go about completing this dual boot? I have read to delete the hp tools partition or combine it with another, I just want a step by step of how to dual boot this computer, I have done plenty of computers in the past but never ran into these issues that come with an HP (should have got a dell lol)!

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• Can I include a robots meta tag outside of the head in HTML snippets indeded to be SSIed?

  - by Dan

  I have a number of files in my site which are not intended for independent viewing, but rather to be AJAXed into content within the site. They obviously don't meet HTML standards (no body, head, etc.) as independent entities. I would like to prevent search engines from indexing these pages, but do not have access to /robots.txt (which would be much more ideal). My question is, could I include the following at the top of these partial HTML files and get the desired results? <meta name="robots" content="noindex, noarchive"> I guess there are two parts to this question. Will this cause any rendering issues in any browsers? Will search engines (at least Google & Bing) interpret this as intended?

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• Rapid Application Development, good, bad or ugly?

  - by chrisw

  I have been working for such a shop for the past three years and I know deep down it cannot be like this everywhere. When I think of Rapid Application Development I immediately think programming without fore-thought. For example, when my company decides to come out with a new product, they don't do any type of relationship mapping, no ER diagrams, no round table discussions on expandability. No, the senior developer that ends up working on the product puts together a screen shot walk-through of the application to show to the client. Once the client signs off on the project work is underway by the senior developer. Now you have a senior developer (I use that term "senior" loosely) coding the application in under a week with no unit testing. Well I guess the good to this is it keeps programmers employed due to the enormous amount of unforeseen "features" in the newly created application. Have any of you dealt with a company like this? If you did how did you preserve your sanity?

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• Ububtu 13.04 Rename Computer

  - by Sourabh

  How can I rename my computer? Renaming it in /etc/hosts and /etc/hostname does something weird. Before renaming it, I am able to open these files via sublime using sudo subl /etc/hosts but when I rename my Computer (using nano) and open any of these files using subl, I get this message: No protocol specified (sublime_text:20071): Gtk-WARNING **: cannot open display: :0.0 So I guess renaming in the above files is not the only thing I have to do. PS: If I rename using sublime, after renaming one of the files, I get same message when I try to open other file

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• Google locking on Ubuntu

  - by user170534

  Problem I'm facing is that Google doesn't respond well timed to connection requests send from any browsers known to Linux. As far as I can tell, this was existent in Mint, which is Ubuntu based. I have no debug or guess about cause but I'm sure there are people with the same problem. ping of terminal is untouched but any other browser keeps unloaded, for example; google loads fine, I search for something. Then I decide to search for something else and ta daa: You gotta wait for 30 seconds for Google server to respond. I tried using google's public DNS without success. Flare the suggestions & ideas!?

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