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• Dropdowns revisited

  For my DIBI presentationI need a dropdown menu (in order to compare it on desktop and mobile), so I wrote one.Point is, it took me thirty lines of JavaScript, nine of which only contain a closing },and three of which deal with the fact that bloody Firefox still doesn’t support contains().Net amount of lines: 18. Can somebody please remind me why we all used to think dropdownsare so extremely complicated? I can’t for the life of me figure it out.window.onload = function () { document.getElementById('dropdown').onmouseover...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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• ubuntu 14.04LTS flickering

  - by user292609

  when I start the computer, makes a big high pitch sound and the only thing I can see on the screen is "[[23" written everywhere . I have to start it always through the recovery mode. Ubuntu desktop screen does not flick, but every window that can maximmize and minimize does it like crazy. Like firefox browser, terminal, vlc.. I have a Lap top Acer Aspire One with AMD/ATI graphic card. I read many forums about flickering screen and I try many things , but I still have the problem. I am very new in Ubuntu. Please help

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• Do Java applets have any place on the web today?

  - by Tom Marthenal

  Many browsers now disable Java applets by default, requiring them to be enabled on a per-page basis. It seems like applets have not changed much in the past few years. In fact, it seems that client-side Java (applets, desktop applications, ...) is dying completely, and Java is primarily becoming a server-side language. Except for the sake of compatibility, is there any place where applets are still useful on today's web? As a web developer who is familiar with Java and with JavaScript, why would I ever choose to use an applet instead of some JavaScript?

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• Get the Windows 7 Start Menu Back in Windows 8 with Classic Shell

  - by deadlydog

  I just thought I’d give readers a heads up that you can use Classic Shell to get the old Windows 7 style of start menu back instead of using the new crappy Windows 8 metro start screen; plus it’s free and open source .  You can still access the metro start screen with Shift+WindowsKey or Shift clicking the start menu button.  This program also defaults to showing the desktop on startup instead of the metro start screen (but that can be disabled), and is super configurable and has tons of options to tweak it just the way you want if you are picky like me   The only thing I would say is when installing the app, only install the Classic Start Menu; you don’t need the other ones. You’re welcome, and happy coding!

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• Error after installing Ubuntu 12.04 using Wubi

  - by KJ50

  After using Windows Ubuntu Installer from within Windows, I am prompted to restart, so I follow the directions. When I try to start Ubuntu after restarting, the desktop background appears, but then a loading bar with this title appears. Verifying the installation configuration... While this is loading, an error window pops up that says No root file system is defined Please correct this from the partitioning menu There is only an 'Ok' button available to click, and if I click that the same error window appears. I do not know how to get to the "partitioning menu" from this state, so the only option I have is to shut down my computer. What can I do so that Ubuntu finds a "root file system"? Can I diagnose this problem via Windows? Does anyone have any insight? FYI - I am using a new ultrabook with 6GB RAM, Intel i7 3rd gen processor, and no CD/DVD drive.

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• Testez la beta de Visual Studio 11 et dites-nous ce que vous en pensez

  Visual Studio 11, la prochaine version majeure de l'environnement de développement de Microsoft est disponible en version beta depuis fin février. Le changement le plus visible est sa nouvelle interface utilisateur inspirée de Metro, qui a fait l'objet d'une épuration et refonte complète afin d'être plus simple et permettre aux développeurs de se concentrer uniquement sur le code et les tâches connexes. L'EDI propose tout un ensemble d'outils pour la conception des applications Desktop, connectées, sociales, Web, Metro, Cloud et des jeux en utilisant les langages et technologies comme C#, VB.NET, F#, C++, HTML5, JavaScript et CSS. L'ALM est au centre de Visual Studio 11 : l'environnement introduit le DevOps, une nouvelle extension de l'Intelli...

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• usb drive filesystem?

  - by purbleguy

  So, school is approaching quickly, and one of the things on my supply list is a usb drive. Now I'm asking myself what filesystem to use. After some research, I found ext4 to be the most stable drive filesystem. But, I also found that Windows (The OS used by every computer in my school) can't read ext4 formatted drives without special drivers, and I'm sure the school wouldn't be too happy with me having to install the windows ext4 drivers on every computer I use with my usb. So, my question is, Should I use fat32, one of the ext filesystems (2, 3 or 4 would work) or NTFS, I have an ubuntu laptop, a Mac desktop, and of course the school computers I use are Windows, so which would be the best filesystem for my usb.

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• Mac OS X : Mountain Lion disponible le mois prochain avec la dictée intégrée, les notifications et encore plus d'iCloud

  Mac OS X : Mountain Lion disponible le mois prochain avec la dictée intégrée, les notifications et beaucoup d'iCloud Le WWDC d'Apple est traditionnellement riche en annonces. Cette année, en plus d'iOS 6, la société a également présenté les améliorations en cours pour son prochain OS desktop (alias « Mountain Lion »). Sur les 200 listées par Craig Federighi, c'est avant tout iCloud qui a été mis en avant. La plateforme de stockage et de synchronisation hébergée prendra en charge Messages, Notes, Rappels ou Documents. iCloud synchronisera également les onglets de Safari (unifiant ainsi le surf entre Mac et iOS) et le Game Center (qui débarque sur bureau donc). [IMG]http://ft...

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• updating to 3.0.0-18-generic linux kernel is causing system instability - and no backwords compatability

  - by Gaurav_Java

  I was prompted for an update of kernel 3.0.0-18-generic, so I upgraded and rebooted my system now its behaving really strange. Applications are crashing . System is randomly restarting Files are randomly disappearing off of my desktop I've tried booting into Linux kernel 3.0.0-17-generic but it doesn't help. Subsequently I am not able to connect to the INTERNET when I use the 3.0.0-17-generic kernel. Are there any ideas on what may be wrong? How I can go about debugging this?

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• Ubuntu samba file and print server

  - by Gerd

  I am using an old Dell desktop PC as a samba file and print server for a Windows 7 network. The version of Unbuntu I am running is 12.04 which seems to big for the RAM and disk space I have available. Unbuntu 12.04 runs very very slow, the printing over the home network works at a quite acceptable speed. I have two problems: SLOW Ubuntu and I cannot update samba. The update manager tells me "update failed". So my two questions: Is there anything I can remove from the standard 12.04 installation to make Ubuntu run faster and should I uninstall and the reinstall samba to overcome the "update failed" problem? I hesitate, as printing and file serving works somehow and I don't want to loose that. I know I should give you more information to give me answers. But what would you need to know? I am not a natural Linux user. Windows 7 is still my home. Thanks in advance, Gerd

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• Problem! I can't add work areas in gnome flashback ubuntu 14.04 or make the alt-tab work!

  - by user2970454

  Please, I have been dealing with the alt-tab problem for a long time. I have alreade check keyboard shortcuts in the configuration panel but it still doesn't work. (I already had this problem in ubuntu 12.04, but since I installed 14.04 another problem came arround. I can't add work spaces. I tryed changing the amount of work areas by right clicking in the desktop's miniature but it does't chenge. Anyone can help me find this parameters in a file wich I may be able to edit using "sudo nano" or something similar? Thaks! PS: I also have problems with the backlight but that may be another issue since I had to install samsung-backlight in 12.04 but it isn't availabe for 14.04. I just mention it in case someone knows somthing about it.

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• Black frame around screen after HDMI connection failure

  - by Wolter Hellmund

  I was trying to watch a movie in my computer through the TV, so I connected both with an HDMI cable. I was unable to have a successful setup (the colors were all weird on the TV and the screen size, incorrect), I tried many resolutions using the nvidia-settings application and somehow my screen got framed by a black border and after that I have been unable to remove it, even after restarting the computer and not being connected to the HDMI cable anymore. I am using Ubuntu 11.10 amd64, my GPU is an nVidia GeForce 8600M GT and I am using the propietary driver version 280. The problem is due to some setting with my account only. I logged in to the guest session and the resolution is right there. Also, my desktop "thinks" the resolution is right (i.e. 1280x800), but it must be right in another scale because there is pixel area occupied by the black frame.

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• How to enter the Default Keyring password via the command line?

  - by Jerkofalltrades

  Is there a way to enter the default keyring password using the command line? For instance: You have a remote setup of Ubuntu 10.10 thats set to auto login. You don't want to remove the keyring password. All right the system boots up and logs in automatically, then asks for the keyring password now at this point you can create ssh connections but you can't remote desktop. What can you do to enter the keyring password at this point? Also, to better clarify, this is from a remote connection using the command line.

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• Is it possible to change the group list shown on the application launcher?

  - by Grobbendonk

  I just installed Unity, on Ubuntu 10.10, to try it out. I've tried fiddling with a few things, but I can't work out how the applications are grouped and listed. I mean - if I click on the Applications in the launcher, we get the list of applications installed, with the option to narrow the selection by group. i.e. |Search box|All applications|Accessories|Games|Internet|Media|Office|System| My question is where that list is generated - my machine is mostly for work, so the games have been uninstalled (and I get a "there are no games on this box" message, which is nice), and there's a stack of other stuff I'd like to see under a new group of "work" or something. Obviously, a logical follow-up - how does unity know how to classify the applications into those groups? Is it the info in the .desktop links to them?

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• Is it OK to have all these Window Managers?

  - by JMCF125

  Hello again, This is not actually one, but several related questions. I have installed Xfce, KDE, Gnome Fallback and DWM (and obviously I have Unity). How can I change the login screen? It is currently always Kubuntu's (also on shutdown), though strangely kubuntu-desktop wasn't the first nor last to be installed. Why? Where is/are the file(s) with which Window Manager to start? Can I start without X and then start it from the tty? Is all this OK? Is it safe? I hope you can help me with this, since whenever I login to an envirnment other than KDE, I have to login again (except on DWM).

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• Encryption password

  - by George

  I am running Ubuntu 12.04 LTS I thought that everything in my Documents folder was being backed up by Ubuntu1, as everytime I put a file in my documents folder a box popped up stating backing up file. When I looked at the Left hand list of programmes on my desktop screen there was an extra Box in the list. Clicked the Box and it stated encryption Password required. It seems the latest files have not been backed up as an Encryption Password is required. Can anyone explain for me, what is this Encription Password and how do I get it.

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• Force Xorg to run in specific resolution

  - by Z9iT

  From my past experience (using Win-Xp), this particular monitor works only on 60Hz , Best resolution being 1024*768. I have "installed n configured" Ubuntu 12.04 Minimal (on USB stick) so that most of the time terminal is used, however whenever theirs a need to enter GUI I may issue startx command to go into gnome. However the problem is that on this particular system, issuing this command poses problem for its default refresh rate don't synchronize with the monitor. The display keep on flickering and utterly unreadable. It is visible that gnome has been loaded and default wallpaper and desktop items are visible. But the problem is due to refresh rate different than 60Hz. I am looking for a command attribute to startx command which will force the refresh rate to 60Hz and resolution preferably to 1204*768

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• Ubuntu 14.04 compiz thumbnails preview flicker

  - by HockeyBum

  Ubuntu 14.04.1 x64 (upgraded from 12.04) with Unity desktop Dell Latitude with NVIDIA GF119M (NVS 4200M) - Optimus is DISABLED Using NVIDIA legacy binary driver 304.117 When I set the CCSM option to allow thumbnail previews, the thumbnail 'flickers' for about 1 second before the actual thumbnail image is displayed. I don't think I had this enabled under 12.04 so not sure if it's version-specific. Should I be using a different driver (there are newer ones - Ubu shows NVIDIA binary driver 331.38 and the non-proprietary nouveau, plus NVIDIA has newer ones at the site)? TIA!

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• Where is EasUS coming from?

  - by Malcolm Lawrie

  I have downloaded the Universal USB Installer and Ubuntu 12.04 Desktop as described on your site. I installed it to a 16Gb USB stick including the format option. Now when I try to boot from the stick into Ubuntu I get a couple of lines of script then a screen with EasUS Todo Backup with Backup. Recovery, Clone and Tools options, but no sign of Ubuntu starting. Where is the start Ubuntu option please? I can find no reference to EaseUS on your help pages.

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• Deactivate one graphicdevice in a SLI system

  - by NobbZ

  As it is now, I have a Gaminglaptop with 2 GeForce 9800M GT with SLI activated, Ubuntu 12.04. When I use any graphicdriver that is aware of acceleration features the system crashes after a short period of time. After I removed and purged jockey my system runs stable but slowly, but I can use it for now (I have to choose recovery at startup and the resume boot, botting up normal results in a colorflickering screen). But since the system is runs slowly, I would like to try to work with only one graphicdevice. First test device A, if that doesn't work test with device B. A testing tool for Windows already told me, that one of the cards doesn't work properly, but it doesn't say which one (same crashes in Windows when programs or desktop uses acceleration). Therefore I wanted to ask, if there is a way to reinstall any nVidia (or third party) driver, deactivate one of the two devices and test the stability?

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• How can I change the folder icon?

  - by Jakob

  I know how to change an icon this way. What I'm looking for is an equivalent to changing the icon for an application in the launcher, i. e. the Home folder, via gedit ~/.local/share/applications/nautilus-home.desktop That way you can set an icon type, which is helpful when you later want to change the icon set resp. theme or when you want the best resolution for each size of the icon. So, I know how I can do this for applications in the launcher - but how can I realize this for icon folders in Nautilus? (In which file these settings are stored and editable whith i. e. Gedit?)

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• Tracking work history in a git repo

  - by Code-Guru

  Previous related questions: Code bases for desktop and mobile versions of the same app Git branching and tagging best practices Question: I have split my repo into three directories (swing, android, and common) as suggested by @KarlBielefeldt in response to my previous question. Now I am jumping back and forth between developing my Android port and tweaking/adding features to my original Swing app. All of my commits are linear (fast-forward) and only my commit messages give hints indicating whether I'm working on my Swing app or my Android app. Is there a better way to keep track of the work flow in my git repo?

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• Take a single snaphot from a webcam with a delay

  - by cedivad

  I use gst-launch-0.10 v4l2src num-buffers=1 ! jpegenc ! filesink location=$HOME/Desktop/test.jpg to take snapshots. It works well. However in some light situation I need to drop some of the first frames the webcam outputs so that the webcam white balance doesn't provide me with an impossible to view image. Do you know how could I do that? With the GUI of cheese I can do it without any problem, but I need to automate this via CLI. Many thanks.

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• Install ubuntu using GRUB2

  - by FELDAP1

  I have Deepin linux installed and now I need to install ubuntu. I don't have CD ROM , so I thought I can use GRUB2 ISO boot option. I have used the link Install Ubuntu from iso file using grub2 to boot ISO using GRUB2. I need to install the operating system. When I click Install Ubuntu icon in desktop, the installer starts. But I can't see the option where we can specify the partition. It just directly goes to installing. Even if I click install, the installer does nothing and the installation didn't start. What to do? Any ideas?

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• Does it really takes 5-10 years (or more) to be really good in programming?

  - by Ygam

  I don't get it. Why is there such a notion that it takes this long to be really proficient in a single language? I somehow think that this statement meant that it takes such a long time to master your language, and use it in a lot of context (web programming, desktop applications, mobile applications, etc.). Adding to that, sometimes you get stuck on a single language in your job and doing repetitive things and don't have much time to study other languages, thus for a certain amount of time, you don't really do much learning at all, and that adds to the amount of time. What do you think?

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