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• Login screen theme and background lost

  - by Sebastian Potasiak

  I tried to change my LightDM background and theme in Ubuntu 12.04 LTS beta 2, changing /usr/share/glib-2.0/schemas/com.canonical.unity-greeter.gschema.xml file (I don't even know if it would work, but I couldn't find any other way), and I failed and restored original file. Also, durning the same session I installed gnome-shell-extensions package, but it didn't work either. (I didn't remove it) Now my login screen looks a bit coarse, without theme and background. (It looks like MS Windows 95 a bit - square buttons and text fields) My question is, how to repair login screen (or how to customize it propely) and how to make gnome-shell-extensions work.

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• How do I disable window move with alt + left mouse button in GNOME Shell?

  - by artfulrobot

  There are lots of posts on this about Unity, this is about gnome-shell As with other posters, I use apps (Inkscape in particular) that uses Alt-Click and Alt-drag. Gnome-shell is grabbing this off me and thus disabling features in the application. I have tried using ccsm's Move plugin - you can turn this off and you still get Alt-drag window moving. using gconf editor to change /apps/metacity/general/mouse_button_modifier - this has no effect AFAICS. It's really hindering me. Otherwise I find gnome-shell a really productive environment.

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• Kostenlose Openbooks: Handbuch zu Ubuntu GNU/Linux 12.04 LTS

  - by britta wolf

  Ab sofort steht das umfassende Handbuch zu Ubuntu GNU/Linux 12.04 LTS als kostenloses Openbook auf der Website von Galileo Computing zur Verfügung. Mit diesem Standardwerk lernt man alles Wissenswerte über die Linux-Distribution Ubuntu »Precise Pangolin« kennen. Das Buch überzeugt durch seine Themenvielfalt und Vollständigkeit. Von der Installation, der Benutzeroberfläche »Unity«, der Paketverwaltung über Optimierung, Programmierung, Migration und Kernelkompilierung bis hin zur Virtualisierung und Serverkonfiguration finden die Leser alle wichtigen Fragen in diesem über 1.000 Seiten starken Buch beantwortet. Darüber hinaus profitieren sie von mehr als 300 eigens gekennzeichneten Tipps und Tricks sowie von zahlreichen Praxisworkshops. Sowohl Einsteiger, erfahrene Anwender als auch Profis profitieren von diesem Handbuch. Die HTML-Version kann bequem im Browser gelesen werden. Das gedruckte Buch ist im Buchhandel erhältlich. Link zum Openbook: http://openbook.galileocomputing.de/ubuntu/ 

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• Canonical met fin au support d'Ubuntu 11.04, les utilisateurs sur Natty Narwhal invités à migrer vers une version récente

  Canonical met fin au support d'Ubuntu 11.04 les utilisateurs sur Natty Narwhal invités à migrer vers une version récente Les utilisateurs d'Ubuntu encore sur la version 11.04 « Natty Narwhal » du système d'exploitation fondé sur Linux sont invités à migrer vers les versions récentes. Depuis le 28 octobre, Canonical ne produit plus les correctifs de bugs et les mises à jour de sécurité pour cette version de la distribution. En effet, l'éditeur a annoncé dans un billet de blog que « Natty Narwhal » avait atteint la fin de son cycle de vie, signant ainsi la mise à la retraite de la distribution surtout connue pour être la première version à intégrer par défaut le bureau Unity. ...

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• How to adjust DPI in 14.04

  - by jake

  I asked about fixing DPI in 12.04. The 14.04 release notes list "Support for High-DPI screens and desktop scaling." Post upgrade, it seems that nothing has changed. Similar symptoms from my previous post persist: The 1" square here is closer to 1/2" Despite the line xserver-command=X -dpi 170 in /etc/lightdm/lightdm.conf, xdpyinfo reports 96x96 dpi I did find that I was able to use the "Scale for menu and title bars" slider in System SettingsDisplays to fix title bar text size instead of setting org.gnome.desktop.interface text-scaling-factor as described here. The last post also mentions that in Gnome 3, DPI is hard coded to 96. Is this a limitation in 14.04? (I am somewhat ignorant to the distinction between Gnome and Unity) Can I do anything to properly set my DPI?

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• Random freezes on MBP9,2 + Ubuntu 12.04

  - by EnToutCas

  I have a MBP9,2 (mid-2012) at work. I put Ubuntu 12.04 on it after some efforts. Everything works more or less now, except I get random freezing every now and then. I have to power off the machine to restore it. Wondering if anyone had the similar issue. My setup: MacBook Pro 9,2 (mid 2012) Ubuntu 12.04 (installed using the special image for Macs) No proprietary drivers xmonad on Unity 2D So far the freezes look to be sporadic and spontaneous.

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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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• Skype on Ubuntu 12.04 x64 - anyone has it installed?

  - by Zevaka

  I am wondering if there's anyone here who managed to use skype @ 12.04. It used to work (ever since i first tried Ubuntu 10.04) flawlessly, but after upgrade to 12.04 just doesn't start. If I start skype from terminal, it just says "Segmentation fault (core dumped). I tried to remove skype and installed it from different locations: Skype website (did not install at all, "package error") From official Ubuntu repository (doesn't start at all, segmentation fault) From repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner" (doesn't start at all, segmentation fault) Interesting thing: even if I remove / purge skype from the system, it still shows up in Unity menu (of course doesn't start). Any help here? Thanks!

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• Starting out with 2D cross-platform game development [closed]

  - by Aran

  I am wanting to challenge myself to build a simple game, that has a character and a randomly generated world. If I get anywhere with it I may perhaps I'll develop it into something more, but the key challenge I want to tackle is cross-platform. I'd also want to have a go at creating engine myself, doing lighting and other bits. Is it worth me using a system like Unity or do I go down a more custom route? The game I would like to make is a 2D game so whether that changes the tools I should use, it would be great to know as well. Supporting mobiles isn't something I am worried about at moment, just looking for Mac and Windows for time being. In future I'll consider other platforms if I get anywhere with the development. So if anyone has any recommendations for a language, engine or system to use would love to her your thoughts.Including pros and cons would be helpful and appreciated and if you can do comparisons that would be awesome as well!

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• Metacity used with proprietary driver and proposed repository

  - by Oxwivi

  I enabled the proposed repository in a fresh install with the proprietary nvidia-173 driver. After the reboot, I noticed that minimizing and maximizing, there were none of the expected effect (using Ubuntu Classic, even with proprietary driver, Unity does not work - another issue). Furthermore I confirmed by trying to switch workspaces using keyboard shortcuts, and the square desktop wall was replaced by horizontally lined workspaces of Metacity. Of course, the upgraded Compiz could be responsible, but I can't figure out what to do - please advice. Additionally, if it's an issue with the softwares from proposed repo, how and what do I do to notify the developers of the issue?

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• Dual monitor gnome-shell broke itself

  - by JXPheonix

  Ok, lets get this over with. I have a dual-monitor, ati setup on gnome-shell that was just fine until this morning. Then, this happened. Look closer... Whatever has happened to my ubuntu setup? My second monitor still works, entirely normally, with the exception that I cannot (obviously) access activities (as i am in gnome-fallback ). I do wish to resume my work... EDIT: By entirely normally, I mean I can move my mouse over it and have seperate windows on it and stuff. It's not mirroring. UPDATE: Unity works entirely normally.

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• On-the-fly file search in gnome 3?

  - by jan groth

  I recently switched to Gnome 3 (on Onereic 11.10). I was a big fan of gnome-do (on Gnome 2), where I heavily used the "files and folders"-plugin. This allows to configure a list of files and folder to be searched on-the-fly while typing. E.g. starting to type "timesheet" opens "timesheet_2011.ods" from my dropbox account... I can't find anything like this in Gnome 3. I know that there is a list of "recent items", and also the name of bookmarked folders in nautilus is searched, but that's not (exactly) what I'm looking for... So, what I want is this: tell Gnome 3 where my files are (certainly not only in my home folder) have them searched on the fly while I'm typing I think Unity offers something like this - but hey, I'm using Gnome 3 ;-) Anything I missed?

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• Avatar creation / dressing feature

  - by milesmeow

  What is the effort required to use a game engine such as Unreal or Unity, etc. and create an avatar customization features...complete with clothes. The user should be able to customize the body features and the clothes need to then fit onto the customized body. What is needed? Can you create one set of 3D models for clothes and somehow programatically have the clothes adapt to the body shape? I.e. The same shirt model will be able to fit on a skinny person vs. someone with a big beer belly. How difficult is this? What are the steps needed to implement this avatar creation/dressing feature. I'm basically talking about something like in Rockband 3.

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• Radeon HD5670 hangs after login

  - by pKaresz

  Thanks in advance for your advices. I installed, Ubuntu 12.04 today, on my PC with a Radeon hd5670 graphics card. The first error I encountered, (just like the first time Unity came out - after witch I waited to try Ubuntu again until now) is, that it hanged after login at the desktop wallpaper, with only the mouse cursor. Well actually the first problem was with the live CD, but I managed to install it, using the install now, not the try now. Live CD has the same problem, as after install. So, after installing and getting the error, I searched of course before asking this:) I found this: Ubuntu hangs at purple screen The accepted answer there helped me to get to this. (note, that the below picture is a screen taken from a working desktop, and then erased the parts that don't show on mine.) Note that there is nothing at the top except the brown bar. No shutdown button, no nothing. The system hangs, I can't click on anything, I can only wiggle around with my mouse XD

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• How to fix missing menus in non ubuntu maverick apps

  - by piedro

  Hi! There's a bug with the menue of filezilla: When opening filezilla there is no menue list. Very inconvenient because you can't open the "settings"-dialog. There are several workarounds that I tried - none of them really work. change theme while filezilla is running, menue reapperars. Once you close and reopen it the menue is gone again. add "export UBUNTU_MENUPROXY=0" " to .bash.rc or just call it before starting filezilla. Doesn't have any effect for me - menue still missing. tried "sudo apt-get remove appmenu-gtk" cause it's obviously to do with unity but the funny thing is even this method has bo effect at all! How can I fix this? How to do the troubleshooting? thx fior reading, p.

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• Notifications not working in Gnome 3.4

  - by chazdg

  Notifications are no longer working in Gnome 3.4 but they are working in Unity. I have tried everything I can think of but I am stumped. To clarify, I am changing the theme using Gnome Tweak. Themes were obtained from various repositories including noobslab/themes and webupd8. As an example, when using the default theme adwaita, I get all notifications when using Rhythmbox as to what song is being played on an internet radio station. I even tried a different media player with the same result. When I change the theme, all I get is a media player Icon. Change back to default theme and all Notifications work fine. Notifications were working at first with all themes, but no longer. The question is how to get Notifications to work for all themes. They did for previous versions of Gnome-shell.

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• Closing lid does not suspend laptop

  - by fgysin

  I'm on a Lenovo T400 laptop. In the past I had suspend problems on every second version of Ubuntu (at least it feels like it), but in 11.04 it was working perfectly. Now, after the upgrade to 11.10 closing the laptop lid does no longer initialize suspension. When I choose 'Suspend' from the shutdown menu it works perfectly, so this does not seem to be an issue with suspend itself. The options in System Settings>Power are of course set to suspend in case of closing the lid (both for battery and AC poer). Note: I have no idea if this is of any importance, but I'm running the gnome-session-fallback stuff, as I just hate the Unity desgin.

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• installing ubuntu 10.04 over top 11.04

  - by Alex

  im looking to install 10.04 over top the 11.04 partition, it wouldnt let. keeps giving me a "root file system not found" error ever time i manually select partition. (i have a win7 partition) 11.04 popped up after upgrade that my hardware isnt supported for unity. and i cant boot into it, hangs up on purple screen right after boot menu. if anyone can post a link to a how to guide or put it on here, would be great? im trying to take advantage of my nvidia geforce gt 120m (its a laptop) to play around with cuda/c++ programming!

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• Stop KDE services from running

  - by Gabriel

  I recently installed KDE with the command sudo apt-get install kubuntu-desktop. Now whenever I log into Unity I can see KDE-related services running in the background and I see no obvious way to prevent them from opening at startup. I checked bum but I see nothing there. These are the services I see running right now: kde4 klauncher knotify4 These ones I can identify as being related to KDE given their names, but there could be more. How can I prevent these services from launching by themselves? I should mention I often use KDE applications such as kate, okular and kile. Could these be responsible for opening those services?

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• Launcher icons are invisible after upgrade from 11.10 to 12.04

  - by Clo Knibbe

  I am re-purposing an old laptop. I installed 11.10 on it and then immediately upgraded to 12.04. (I could not directly install 12.04 as my system does not support PAE.) When my system was (briefly) 11.10, the desktop appeared as expected. However, after the upgrade to 12.04, the icons in the launcher area are invisible. If I hover over the spot where the icon should be the little popup window showing the tool's name appears, and I can click to invoke the tool. I just cannot see the icons. ![invisible icons in launcher][1] The icons do appear as expected in other contexts, for example in the Home folder and in Dash Home. My theme is "Ambiance (default)" I do not have a ~/.icons folder. This is the top level contents of /usr/share/icons: default DMZ-Black DMZ-White gnome handhelds hicolor HighContrast HighContrastInverse Humanity Humanity-Dark locolor LoginIcons LowContrast redglass ubuntu-mono-dark ubuntu-mono-light unity-icon-theme whiteglass (Sorry for the poor formatting, can't get it to show in list.) I suspect that the launcher isn't looking for the icons in the right place, but I don't know how to confirm that, or how to correct. This is my first foray into Linux, although I used to use Unix a few decades ago. This doesn't look much like my old Sun workstation, though! Does anyone have any suggestions or insights for me? Thanks.

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• FGLRX Drivers Keep Crashing | "Installation Media" reads Natty even though I'm in Precise

  - by Tom Thorogood

  I recently switched back to Ubuntu after a year or so of hardly touching my Ubuntu partition, and upgraded from Natty. Every time I start up, i get the "A problem has occurred..." popup, but it won't let me report it because Precise is not in beta. The details on the report show a segfault, and going through all the details, I notice that it lists Natty under "InstallationMedia" -- I just installed these drivers, so I'm really unsure why it's saying this. I wish I could copy this entire error report, but I see no way of doing that (is it stored somewhere in /var/log?). I'm new to the Unity interface (it's why I stopped using Ubuntu to begin with, but now that I'm getting used to it I'm liking it better). Thanks.

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• Shader inputs in a general purpouse engine

  - by dreta

  I'm not familiar with SDKs like Unity or UDK that much, so i can't check this off hand. Do general purpouse engines allow users to create custom uniform variables? The way i see it, and the way i have implemented it in an engine i'm writing to learn 3D, is that there is a "set" of uniforms provided by the engine and if you want to write a custom shader then you utilize uniforms you need to create a wanted effect. Now, the thing is, first of all i'm not an artist, second of all, i didn't have a chance to create complex scenes yet. So my question is, is it common practice to define variables that the engine provides and only allow the user to work with what they're given? Allowing users to add custom programs and use them where they want is not hard, but i have issues imagining how you'd go about doing the same for uniforms.

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• Tip: Keeping the ADF Mobile PDF Guide up to date

  - by Chris Muir

  This is a little tip for customers using Oracle's ADF Mobile. If you're like me, it's possible you don't rely on the online HTML version of the Mobile Developer's Guide for ADF, but rather download a PDF version of the file to use locally (look to the "PDF" link to the top right of the guide).  For me the convenience of the PDF is it's faster, I can search the whole document easily, I can split read the document across two pages on my home monitor, if I lose my internet connection the document is still available, and it's easy to read on my iPad (especially on long haul flights to the US across the Pacific where there is no internet connection!). The trigger point for me to download the Oracle PDF documentation has always been on a new point release of JDeveloper.  However in the case of ADF Mobile, as an extension to JDeveloper it is releasing at a much faster and independent schedule to JDeveloper and this includes updates to the documentation. As such the 11.1.2.4.0 ADF Mobile PDF guide you have locally might be out of date and you should take the opportunity to download the latest version.  This is also particularly important for ADF Mobile as not only are many new features being added for each release and included in the new documentation, but the guide is under rapid improvement to clarify much of what has been written to date.  Our documentation teams are super responsive to suggestions on how to improve the guides and this often shows per point release. How do you tell you've the latest guide? Look to the document part number which right now is "E24475-03".  This is a unique ID per release for the document, the first part being the document number, and the part after the dash the revision number.  If the website document number has a higher revision number, time to download a new up to date PDF. One last thing to share, you can follow the ADF Mobile guide document manager Brian Duffield on Twitter to keep abreast of updates. Image courtesy of Stuart Miles / FreeDigitalPhotos.net

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• Workspeace view shows first workspaces out of border at left

  - by Jeremi Roivas

  I am using nvidia-current and edited from settings my monitors so that my second monitor is at left and unity-panel shows only in my main monitor. How ever now the workspaces images have shifted so that second monitor first workpsaces are moved out of the left border and when the monitor is not turn on I can't see the the workspaces there. Sometimes programs have been moved when monitor is been flashed to the workspace shown in out of border and I have no means to move the program windows into my main workspace views. Image: http://but.fi/2em As you see the second monitor works as it should work but my main monitor is fooked. Is this possible way to fix this some how?

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• Compiz window decorator randomly disappears

  - by adjfac

  I know people have posted this problem before such as http://askubuntu.com/users/authenticate/?s=9b515fe8-5da2-4bb9-ba01-dcea538b9b9c&dnoa.userSuppliedIdentifier=https%3A%2F%2Fwww.google.com%2Faccounts%2Fo8%2Fid&openid.mode=cancel&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0 but i am looking for a more permanent solution right now. It happens to me at least once a day and when that happens, I usually go to compiz, uncheck and check window decorator and it will bring it back. But it's sort annoying and just wonder if there is a permanent fix out yet? I am using gnome (not unity), on a bran-new thinkpad t520.

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