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• Ubuntu 12.04 intermittently fails to wake up from sleep

  - by stacksia

  When I put my Ubuntu 12.04 machine into sleep, sometimes on waking up, it fails, logs me out, and takes me back to login screen. When I log back in, it tells me some unexpected error happened, but it fails to let me report the bug. This has started to happen recently, but I don't know what triggered it. uname -a Linux [name] 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:52:48 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux The issue seems similar to Xorg intermittently restarts after suspend. But in my case I am not sure if it is a Xorg issue. I looked at xorg logs, but didn't notice anything indicating an error. I know I am not providing a lot of info, but I am not sure where (e.g. which log files) I should seek for more info.

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• Why was Tanenbaum wrong in the Tanenbaum-Torvalds debates?

  - by Robz

  I was recently assigned reading from the Tanenbaum-Torvalds debates in my OS class. In the debates, Tanenbaum makes some predictions: Microkernels are the future x86 will die out and RISC architectures will dominate the market (5 years from then) everyone will be running a free GNU OS I was a one year old when the debates happened, so I lack historical intuition. Why have these predictions not panned out? It seems to me, that from Tanenbaum's perspective, they're pretty reasonable predictions of the future. What happened so that they didn't come to pass?

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• Using a GPL licensed library in a commercial app

  - by user577616

  I develop an android application and in my app I use a libary (jar) that I download from the internet. This jar is open-source under the "GNU General Public License v2". I tried to read the text of the license but had difficulty understanding it. My question is: can I use this libary without changing nothing in the jar in a commercial application? I will be making profit from selling my app which uses this GPL-ed .jar file. If possible, I would like to avoid converting my application to open-source.

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• Wireless doesn't work for me in Lubuntu but does in Puppy?

  - by user54871

  I am new to GNU Linux. I have been having trouble getting wireless working on my installed system of Lubuntu 11.10. It sees my WPA network but cannot connect even when I remove the password. Looking around for a different distro that might replace it, I was amazed to find that Puppy was able to connect to my wireless network without trouble, running off a USB stick. So this makes me think that my Lubuntu wireless problem might be fixable so I don't have to have the major hassle of backing up all my documents etc before installing a different distro to the laptop. Can anyone suggest some steps that might help me to fix wireless on Lubuntu, perhaps using the fact it works with Puppy? Thanks. Rob

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• Upgrade to 12.04 LTS failed, unable to boot

  - by stargazergal

  I was trying to upgrade to 12.04 LTS, but the upgrade froze in the process (it was stuck for over 8 hours) and I had to do a hard reboot. Now when I boot up, I get the following: mountall /lib/x86_64-linux-gnu/libc.so.6 version 'glibc_2.14' not found. I'm not sure what I need to do from here. Do I need to go back to the previous version? Or can 12.04 still be installed? I don't want to lose any of my files. I am still new to Linux, so please give detailed step-by-step instructions.

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• GPL exception that allows linking to free licenses only?

  - by fNek

  There is the GPL license and the linking exception which allows closed-source programs to use the program as a library. There is also the slightly more restrictive LGPL (more restrictive than GPL with exception since it requires that the user can change the library in the resulting project, etc.). And there is the Cygwin exception that allows linking to open source programs. I see clear advantages: Open-Source programs may use the library. People may use these programs for closed-source programs, but then they lose the permission to use the (GPL) library. However, there are two things I don't like about the Cygwin exception: - Its legal status is disputed - I keep hearing that it is basically worthless - It requires certification by the OSI, I would rather have certification by FSF Is there an exception to the GNU General Public License that meets my requirements?

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• Ubuntu 12.04 LTS Purple Screen Error. FIX

  - by user100918

  When I boot up my Ubuntu, it hangs on the purple screen. All I can do is press Shift on start up and it gives me these 3 options. -Normal Boot -Perform Disk Scan -Restore Factory Settings I can also either press E or C. C for for GRUB command line. E for GNU GRUB and says these things setparams 'Restore Factory Settings' set gfxpayload=text insmod part_msdos insmod ext2 set root='(hd0,nsdos1)' linux /boot/vmlinuz-3.3.8-24-generic root=LABEL=SYSTEM ro acpi_osi_=Linux acpi_backlight=\ vendor quiet aufs=restore initrd /boot/initrd.img=3.3.8-24-aufs What is the problem and how do

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• (12.04 vm/server) Dist-upgrade to 3.2.0-63 wants to remove git (1.9.2) and git-core - is that the correct behavior?

  - by YellowShark

  was wondering if anyone knows dist-upgrade wants to remove git. FWIW, this is a pretty simple box, mainly used for web dev. $ uname -a Linux precise64 3.2.0-61-generic #93-Ubuntu SMP Fri May 2 21:31:50 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ git --version git version 1.9.2 $ sudo apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages will be REMOVED: git git-core The following NEW packages will be installed: linux-headers-3.2.0-63 linux-headers-3.2.0-63-generic linux-image-3.2.0-63-generic The following packages will be upgraded: git-man linux-headers-server linux-image-server linux-server phpmyadmin 5 upgraded, 3 newly installed, 2 to remove and 0 not upgraded. Need to get 58.8 MB of archives. After this operation, 199 MB of additional disk space will be used. Do you want to continue [Y/n]?

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• What framework for text rating site?

  - by problemofficer

  I want to start a "rate my"-style site. The rated objects are mostly texts. I want it to be rather simple. Features I need: object rating (thumb up, thumb down) object comments object tags related object presentation based on tags user authentication and management private message system sanity checks for text inputs (i.e. prevention of code injections) cache open source runs on GNU/Linux I would gladly take something that is tailored for my scenario but a generic framework would be fine too. I simply don't want to write stuff like user authentication that is been written a million times and risking security flaws. Programming language is irrelevant but python/php preferred.

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• GRUB prompt at boot after boot-repair

  - by gabrie

  I tried installing Ubuntu 12.04 from the live CD. The install went fine but i had the next error while booting : Grub stage 1.5 error 2. So I used boot-repair as explained here (http://doc.ubuntu-fr.org/boot-repair). Still not working, i got this while booting : "GNU GRUB version 1.99-21ubuntu3 Minimal bash-like line editing is supported. Etc...". Nothing more... Here the report rom boot-repair : http://paste.ubuntu.com/1408117 Could anyone help me ?

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• L'Open source initiative reconnait CeCILL 2.1, la première licence de logiciels libres conforme au droit français

  L'Open source initiative (OSI) vient de reconnaître la licence CeCILL 2.1, la première licence de logiciels libres conforme au droit français. Proposée par le CEA, le CNRS et Inria, elle appartient à une famille de trois licences.Historiquement, les premières licences encadrant le logiciel libre étaient anglo-saxonnes. Depuis 2004 cependant, une famille de licences vient combler l'absence de texte de droit français. Issues d'un groupe de travail composé d'acteurs du transfert, de scientifiques et de juristes d'Inria, du CEA et du CNRS, elles couvrent trois besoins majeurs des éditeurs de logiciel :- CeCILL reprend le modèle de la licence GNU ...

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• Compaq Presario R3000 randomly fails to boot on 11.10, 12.04, 12.10

  - by dlfuller

  I’m trying to figure what to do with random failures to boot. My old HP Presario R3000 with AMD Athlon XP-M sometimes boots, sometimes hangs with a blank screen during boot, and sometimes hangs on shutdown. After a few boot attempts it will finally boot to the GNU GRUB screen where I usually can select Recovery Mode, then select return to a normal boot, and the thing will startup and function normally. The pattern is not repeatable and seemed to start after upgrading from 11.04. Clean installs of 12.04 and 12.10 on newly-formatted hard drives make no difference. If this might be a clue, hangs on shutdown often stop at a line with: “pcmcia_socket pcmcia_socket0: cs: IO port probe 0x3000-0x7fff: excluding 0x3000-0x30ff 0x3400-0x34ff 0x3800-0x38ff 0x3c00-0x3cff”. I did try the “acpi=off” modification from 11.10 randomly fails to boot on Compaq Presario R3000 with no change in these random boot failures. Any suggestions sure appreciated.

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• Fedora 19 simplifie l'administration système et la programmation, Schrödinger's Cat sort avec PHP 5.5, Java 8, Node.js, GCC 4.8 et CLang 3.3

  La nouvelle version de la distribution GNU/Linux Fedora vient de sortir ! Cette 19e version est nommée en l'honneur du chat de Schrödinger. Outre la mise à jour des applications habituelles, cette version s'est centrée sur les outils de l'administration système et de programmation. De quoi ravir et attirer les amateurs de ces technologies.Pour commencer, GNOME 3.8, KDE SC 4.10 et MATE 1.6 sont dans leurs dernières livrées. La stabilité en ressort augmentée avec la correction de nombreux détails pour rendre leurs usages plus confortables.La technologie de l'impression 3D commence à mûrir et Fedora prend les devants en se dotant d'une chaine complète de logiciels libres pour cette activité. De la conception du modèle à l'impression finale, l'ensemble des outils a été test...

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• Content of AUTHORS file

  - by user14284

  GNU recommend make AUTHORS file for list of authors and contributos of a program. But how many "levels" of authors and contributors should contain the file? E.g. I write a program foo, that actively use some library. Should I include authors of the library in the AUTHORS? It seems to yes, because total code of foo contain code from library. But if yes, I should include also authors of all others libraries, including standard libraries of compiler, authors of the compiler and other tools for producing final executable code, authors of OS... When I should stop?

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• Microsoft intègre Git à Codeplex, la plateforme d'hébergement de projets open-source supporte l'application de gestion des versions

  Microsoft intègre Git à Codeplex La plateforme d'hébergement de projets open source supporte désormais l'application de gestion des versions en plus de Mercurial et TFS Codeplex, la plateforme d'hébergement des projets open source de Microsoft prend désormais en charge Git. Git est une application de gestion des versions décentralisée libre créée par Linux Torvalds, le père du noyau Linux et distribuée sous la licence GNU 2. CodePlex utilise déjà le logiciel de gestion des versions décentralisé Mercurial, pour le contrôle de version distribué et Team Foundation Server (qui prend en charge les clients Subversion) pour le contrôle de version centralisée. Malgr...

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• why was tannenbaum wrong?

  - by Robz

  I was recently assigned reading from the Tannenbaum-Torvalds debates in my OS class. In the debates, Tannenbaum makes several predictions: Microkernels are the future x86 will die out and RISC architectures will dominate the market (5 years from then) everyone will be running a free GNU OS I was a 1 year old when the debates happened, so I lack historical intuition. Why have these not panned out? It seems to me that from Tannenbaum's perspective, they're pretty reasonable predictions of the future. What happened so that they didn't come to pass?

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• How to make an inner shadow effect on big font ?

  - by Relax

  I want to make the effect as demonstrate on this site http://dropshadow.webvex.limebits.com/ with arguments - left:0 top:0 blur:1 opacity:1 examples:engraved font:sans serif I tried #333333 -1px -1px but seems not enough to make an inner shadow on such big font, it may be much more complex than i thought? And worse is i'm using Cufon to replace the font but Cufon doesn't support blur of text-shadow I guess maybe i should use JS to make this effect, but i doubt JS will work together with Cufon, or JS font replacement together with JS shadow maker? Any ideas?

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• What are some interesting fringe programming topics that might have hands-on training?

  - by hal10001

  Whenever training topic questions are asked, the answers are fairly typical, and involve a pretty limited subset of topics like OO, design patterns, algorithms, web services, SQL, etc., but I wonder if there are some fringe topics that are still applicable to the programming field and would give me a more rounded approach to development. When I think of "fringe", I think of 2600: The Hacker Quarterly articles that discuss how to use real world (sometimes obscure) exploits, or something like Maker Faire that demonstrates embedded systems programming using Arduino. I have around $1500-2000 to spend, and my job entails Java technologies, but that does not limit my options.

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• Replacing string literal values in Visual Studio project templates

  - by Daniel A. White

  I notice when I create a project template from an existing project in my solution, it does a semi-string replace to update references. However, it does not replace string literals. It does update my web.config file, but not code files. The project template: namespace MyTemplateProject { class MyClass { public string GetStringValue() { return "MyProjectTemplate"; } } } The generated code when used as a template: namespace MyActualNewProject { class MyClass { public string GetStringValue() { return "MyProjectTemplate"; } } } How can I instruct the template maker to replace "MyProjectTemplate" wih "MyActualNewProject"?

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• Suggest books/learning path for writing smartphone apps

  - by chibineku

  I have been writing a lot of HTML, CSS, PHP, MySQL and JavaScript lately working on a website, and I would like to move on to 'proper' OOP with an eye to making smartphone apps. I would like to at least cover iPhone and BlackBerry, which means learning Objective C, Cocoa and Java, before learning the specifics of interacting with the devices themselves, such as native bluetooth/GPS/internet API/methods. I would appreciate pointers to books or resources that will get me from a procedural web developer to object oriented app-maker. Most of the reviews of books on Objective C and Java have been mixed. I am about to start working my way through Beginning Java Objects (APress) which I have borrowed from my brother, so even if it's not a good intro at least it was free!

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• Decorator Pattern - Multiple wrappers or quantity property?

  - by Jiminizer

  I'm making use of the decorator pattern for one of the first times, as part of a Uni project. As far as I can see, the pattern seems to be meant more for adding functionality in a modular manner, however we've been taught it with uses such as a coffee or pizza maker, where the object has modular components that are added - changing properties rather than behaviour. I'm trying to make the most of both uses, however I've come up with a question. In the example in the book we're using (Head First Design Patterns), the pattern is used in a coffee shop creating different coffees. So, for example, milk, froth, sugar, sprinkles are all decorators. How would you implement a system that used the same decorator multiple times (for example, a coffee with two sugars)? Would you rewrap the coffee, or give sugar a quantity property? Or (as i'm starting to suspect) would this never be an issue as the pattern isn't designed to be used this way?

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• JavaApplicationStub with CFBundleDocumentTypes

  - by mystro

  I'm trying to use CFBundleDocumentTypes to associate a custom file extension with my application. As far as I can tell, this seems to "work" -- JavaApplicationStub launches my application when I double click the file. However, no callback is registered through the ApplicationListener events I setup in java. I used the code listed in http://stackoverflow.com/questions/1460193/set-default-file-association-mac-os-x-java-package-maker-installer to do the file association, and the file association itself appears fine, but it seems as if it is the application stub trying to launch the file, and thus fails. I added the Apple ApplicatinListener code to my java application at (similar to http://developer.apple.com/mac/library/documentation/Java/Reference/1.5.0/appledoc/api/index.html?com/apple/eawt/Application.html) but it doesn't seem like my application ever gets a call back. the code is similar to Application.getApplicatin().addApplicationListener( new ApplicationAdapter() { public void handleOpenFile(ApplicationEvent evt) { //some logging message here that I never get} }); I should perhaps mention that I'm also using SWT... Any help would be appreciated

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• JavaApplicationStub with CFBundleDocumentTypes

  - by mystro

  I'm trying to use CFBundleDocumentTypes to associate a custom file extension with my application. As far as I can tell, this seems to "work" -- my application launches when I double click the file. However, no callback is registered through the ApplicationListener events I setup in java. I used the code listed in http://stackoverflow.com/questions/1460193/set-default-file-association-mac-os-x-java-package-maker-installer to do the file association, and the file association itself appears fine, but it seems as if it is the application stub trying to launch the file, and thus fails. I added the Apple ApplicatinListener code to my java application at (similar to http://developer.apple.com/mac/library/documentation/Java/Reference/1.5.0/appledoc/api/index.html?com/apple/eawt/Application.html) but it doesn't seem like my application ever gets a call back. the code is similar to Application.getApplicatin().addApplicationListener( new ApplicationAdapter() { public void handleOpenFile(ApplicationEvent evt) { //some logging message here that I never get} }); Any help would be appreciated

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• What things can I teach a group of children about programming in one day?

  - by Rich Bradshaw

  I'm running a day for 30 kids aged 11-18 about computer game programming. They have all opted to do it, but they have no experience at all of programming. My main aim is for them to learn a few things: programming is hard/challenging programming is something they can learn to do being a computer games programmer != playing games all day a little more insight into how games actually work I'd thought of splitting them into two groups, of younger/less experience and older/more experience, then doing slightly different things. I'd considered showing them Scratch, Game Maker, before showing them the basics of Python and getting them to write a simple text based game (perhaps something like, computer picks a random number, you have to guess it in as few guesses as possible, computer says higher/lower for each guess). Does anyone have any ideas of things to do/show them/ways to teach them?

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• Looping in filemaker using a local variable

  - by Mike Davis

  Been programming in C# for a little bit - trying to use file maker and I cant believe it but I cant even get a simple for loop to work. What I want to do is simple: loop through for the amount of entries in my "amountOfRooms" field and create an entry in a table for each room. Sounds so simple, but I cant get it to work. Right now I have this: Set Variable[$cnt[Customers::AmountOfRooms]; value:1] Go to Layout["rooms"(Rooms)] Loop Exit Loop If[$cnt = Customers::AmountOfRooms] New Record / Request Set Variable[$cnt; Value: $cnt + 1] End Loop Exit Script No new records are created. I know the script is running because it does go to my layout, but doesnt create any new records. There is a "Repetition" field for my local variable - not sure how to use that or what it means? Any thoughts on how to do this simple loop? Thanks.

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