I just removed some effects using ccsm, switched to the AMD proprietary driver, rebooted and after I log in, the unity panel is no longer there. If I hit the windows key or the alt key, nothing happens. I can hit ctrl+alt+t to get a terminal (and thus launch apps via commandline).  Does anyone know how I can fix this? What logs do I need to post here for help?  Edit #1:  As suggested by @cprofitt I just ran:  dconf reset -f /org/compiz/ &amp;&amp; setsid unity   I'm seeing some compiz messages in the terminal now:  unity-panel-service: no process found compiz (core) - Info: Loading plugin: core compiz (core) - Info: Starting plugin: core compiz (core) - Info: Loading plugin: ccp compiz (core) - Info: Starting plugin: ccp compizconfig - Info: Backend     : gsettings compizconfig - Info: Integration : true compizconfig - Info: Profile     : unity compiz (core) - Info: Loading plugin: composite compiz (core) - Info: Starting plugin: composite compiz (core) - Info: Loading plugin: opengl X Error of failed request:  BadRequest (invalid request code or no such operation)   Major opcode of failed request:  155 (ATIFGLEXTENSION)   Minor opcode of failed request:  66 ()   Serial number of failed request:  23   Current serial number in output stream:  23 compiz (core) - Info: Unity is not supported by your hardware. Enabling software rendering instead (slow). X Error of failed request:  BadRequest (invalid request code or no such operation)   Major opcode of failed request:  155 (ATIFGLEXTENSION)   Minor opcode of failed request:  66 ()   Serial number of failed request:  23   Current serial number in output stream:  23 compiz (core) - Info: Unity is not supported by your hardware. Enabling software rendering instead (slow). compiz (core) - Info: Starting plugin: opengl Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 compiz (core) - Error: Plugin initScreen failed: opengl compiz (core) - Error: Failed to start plugin: opengl compiz (core) - Info: Unloading plugin: opengl compiz (core) - Info: Loading plugin: compiztoolbox compiz (core) - Info: Starting plugin: compiztoolbox compiz (core) - Error: Plugin 'opengl' not loaded.
1819
When I login, nothing happens.   I am presented with my desktop wallpaper.    No Dash, no Launcher, nothing.
38472
I have recently installed Ubuntu Gnome with Gnome 3 running on it. I have installed various programs on it which in Unity would have a little icon which would go on the right on the Unity panel, such as Skype, Steam, and Shutter. However in Gnome when launching these applications I see no such icons appearing anywhere.    So do they appear somewhere? Can I make them appear somewhere (such as where they would appear in Unity) if not?
68489
This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here.  While you are encouraged to help maintain its answers, please understand that "big list" questions are not generally allowed on Ask Ubuntu and will be closed per the .     I installed Ubuntu 11.04 on one of my systems and I am using the Unity interface. Unity is working quite well so far but I really miss panel applets for net speed, cpu temp, and system monitor.   These applets are useful for viewing quick info. Unlike 10.10, there is no other way to get this info onto the panel or unity launcher. There are solutions like screenlets and conky but they don't feel appropriate for a clean desktop look.  If you know one then please list out any third party indicators with links so that they can be found.
63329
I just upgraded my System to 14.04.  After restarting when the update was finished I did not see any menu bars or panels.   Right clicking and opening a terminal via ctrl+alt+t is not possible. However I can access the terminal via alt+F1. I already tried out installing the unity-desktop again but it didn't change anything .  Do you have any suggestions?
68670
I installed Compiz on my laptop running Ubuntu 11.10 last week. The way I installed it was kind of different, I opened up a terminal and typed this command:       sudo apt-cache search compiz    After that, I installed all the packages that appeared in the terminal window. I enjoyed all the effects of Compiz like Paint fire on screen, Desktop Cube, but I can't help  but noticing people having some extra plugins which I don't have, such as Atlantis, Snow, Tile and much more.  Where are they getting all those plugins and how do I get them?
5052
I'm being hit (quite often) by that bug where you can't click on some indicators. It's easy to fix by restarting unity, but that usually also means running to the risk of upsetting some window on re-parenting (rare, but I'd rather avoid any such problems).  So, I know there is `unity-panel-service', and I'm guessing this might have something to do with the solution?  Is it possible to restart the unity panel (or the entire unity plugin) without restarting compiz itself?
78437
I've upgraded to Raring last night. The upgrade itself went okay, no errors. But when I rebooted the computer afterwards and logged in to my Unity session, all I could see was the Desktop background (together with Desktop icons), and no Unity interface. The Super button shortcut wasn't showing the Dash, there was no top panel etc. Please see the screenshot.    As a hint, I'm suspecting it's got something to do with my switchable graphics. I'm running Ubuntu on Acer Aspire AS5830TG with nVidia GT540M and an Intel integrated card. In 12.10 I was using Bumblebee to manage the graphic card switching. During the upgrade I saw something related to nvidia had to be uninstalled, but didn't pay much attention to it. I can't be sure if it has anything to do with my problem though.  What could possibly go wrong?
51521
I want to place a link/shortcut/launcher in my unity panel (ubuntu 12.10).   I followed  on handytutorial.com to create a custom launcher and drag it to the panel.  I just need to know which command do I have to input. Is this possible?
39238
I've been looking all over the configuration menus and googling all over the web for how to configure keyboard shortcuts for Copy and Paste in the Unity window manager.  Is there some hidden place somewhere to configure this?  In Gnome Desktop on Lucid, I had it configured so that using the Ubuntu system keyboard/mouse, I could use Win+C/Win+V to copy and paste everywhere on the Gnome desktop, including in Firefox and gnome terminal; then when I moved the mouse to my Mac desktop*, the same keystrokes would copy and paste.  I would really like to keep this consistency.  Ctrl+C is obviously inappropriate as the "copy" key in any sort of terminal program.  (Any Ctrl characters, actually.)  * I am doing this by running Synergy server on Ubuntu, and the Synergy client on a Macbook.
4877
I'm wondering is there any way to achieve the affect of the Ctrl-Alt-Keypad shortcuts in Unity using terminal commands instead? I want a command that sets a gui window to half the size of the screen, either left or right aligned.  By way of background, I'm writing a script that runs after log in. It uses Zenity to ask whether or not I want to open my development environment (GVim and IPython side-by-side). I have been trying to achieve two equal-sized windows for these programmes by using set lines= columns= in my .gvimrc and c.IPythonWidget.width = and c.IPythonWidget.height = in my ipython_qtconsole_config.py. However, there are problems associated with this approach.
8555
Can someone help me out and explain or point me in the right direction on how to check video drivers and see if my video card running okay?  I had 10.04 installed on my Thinkpad r61 with Compiz Manager and life was great, until the machine took water damage. I bought an ASUS (X54H) since and am trying out 12.04, but the desktop just doesn't look right.  I always struggled with video driver installation. There are no proprietary drivers available in the hardware manager.  When I run lspci | grep VGA:  00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)   I will greatly appreciate your help. I want to use Linux more, but like I said video drivers appear to be my biggest concern. I have also tried 12.04 on my desktop PC, but again failed to configure video card, so switched back to Windows 7.
24347
I want to know if there is a way to switch to console mode from the boot menu.  I have an NVIDIA 1070 and every time there is an update, the GUI stops working. All I need to do is re-install the drivers; however, to do that I need to be in console mode. EDIT: I should have added more information to this question but I'll comment on all answers. In short: I've tried text instead of quiet splash I do see booting activity in text mode; however, I don't get a login screen and ctrl + Alt + F1 doesn't help because GDM keeps trying to restart. Previously I managed to kill GDM through multiple tries but is not working since the latest update. EDIT: After searching for runlevel, I've found  but I think it required me to have a running system to make changes -- please correct me if I'm wrong.
57855
I've been using Ubuntu(12.10) for a long time, and recently, my Ubuntu went through yet another update.  The whole update prompt showed up, following by a password prompt, and finally the good ol' progress bar...  Everything went well, and later on, I shut down my computer.  The next day, I turned my PC on, went to the login screen. I went ahead, and logged in, but after that, all I could see was a black screen, and my cursor!  I checked the forums, and got various tips, none of which worked...  Now I'm stuck with an Ubuntu installation that's completely useless.  One more thing:  I even tried logging in through Guest, but same problem! :\  My Computer Specs: Motherboard: Intel DG41WV Processor: Intel Core 2 Quad Q6600 @ 2.40GHz Graphics: Intel G41 Express Chipset RAM: Dual Channel, DDR3 2*2GB (4096 MBytes) HDD: Seagate 500GB SATA   ---- DETAILED INFO ----  To be a little more precise about my problem, after I log in, I can see a black screen and my cursor. Plus, importantly, I was able to see a login screen, hence I'm sure Ubuntu is rendering properly, and also pretty sure that there's no problem with the drivers (Otherwise I shouldn't even get a login screen, right?).  Anywho, another (probably) important thing is that, after logging in, I can hit Ctrl+Alt+1 and get up a recovery console.  The only thing that doesn't load is my actual GUI desktop  Then, I ran unity from the recovery console, it went through a few commands, got stuck at OpenGL for a few seconds, then zoomed throught many more lines of code, and ended up with this:  ERROR 2012-01-03 20.51.23 unity.launcher.Icon TrashLauncherIcon.cpp:62 Could not create file monitor for trash url: Operation not supported  *** glibc detected *** compiz: malloc(): memory corruption: 0x09c861d6 ***   After that. back at Ctrl+Alt+F7: Desktop Background + Cursor  So back to the terminal again, I had to hit Ctrl+C to get back again.  now, I typed unity again, and this was the output:  WARNING: no DISPLAY variable set, setting it to :D compiz (core) - Info: Loading plugin: core compiz (core) - Info: Starting plugin: core unity-panel-service: no process found   so now I did a sudo service lightdm restart :  X10: fatal IO error 4 (Interrupted system call) on X server ":0" after 131 requests (130 known processed) with 0 events remaining. lightdm stop/waiting lightdm start/running, process 2852   Im back at the login screen, and I login again, now Im back to black screen (Yes, I lost the Desktop Background as well)  So, once again, I try unity (same response as last time):  WARNING: no DISPLAY variable set, setting it to :D compiz (core) - Info: Loading plugin: core compiz (core) - Info: Starting plugin: core unity-panel-service: no process found   And still a black screen! :\
70878
I'm trying to open System Settings but it won't open in any way. Using GUI, Settings are trying to load for a moment and then they are gone. Using Terminal (gnome-control-center), I get: (gnome-control-center:8823): GLib-ERROR **: 14:44:15.433: ../../../glib/gmem.c:138: failed to allocate 13477064712 bytes Trap Trace/breakpoint (core dumped)  I tried: sudo apt-get remove gnome-control-center sudo apt autoremove sudo apt-get install gnome-control-center  With multiple reboots, but I had no result. UPDATE!: Same errors persist BUT, when I type: sudo gnome-control-center  (instead of just &quot;gnome-control-center&quot;) suddenly System Settings appear! Is it a user permissions issue? Any suggestions? UPDATE#2: After some system updates, sudo gnome-control-center now spawns &quot;Segmentation fault&quot;.
96367
Since installing Ubuntu 12.10 I have been playing around trying to get my Radeon HD 5450 gpu to work with the proprietary driver, as from the start installing the driver meant losing unity.  I won't list the steps I took as it is not a requirement to answering this question.  After taking one measure and then installing fglrx-updates, upon reboot the system hung at the purple screen. So I decided to boot using nomodeset  I edited  quiet splash $vt_handoff   to look like this  quiet splash nomodeset   Making this change I am then able to log in with Unity and the proprietary driver installed and performing well. I would go as far as to say it performs better than it did in 12.04  fglrxinfo reads  display: :0  screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: ATI Mobility Radeon HD 5000 Series OpenGL version string: 4.2.11903 Compatibility Profile Context   Please note the way I have added nomodeset It had been a while since I have had to do this so it was done from memory. When looking for an answer to this question I came across  and discovered that my edit was supposed to go from  quiet splash $vt_handoff   to  nomodeset $vt_handoff   What has my nomodeset edit done? The only thing wrong that I have noticed is that I don't get the plymouth Ubuntu logo screen when booting.  If that is the only trade-off I am happy to make the edit permanant.
120432
I tried turn on in compizconfig but I does not work. Any solution or it is possible?
77320
I just updated my laptop from Ubuntu 14.10 to Ubuntu 15.04.  Now on a restart it fails to make it to the login prompt.  The system looks to be in a cycle of failure and I see the message repeatedly  [ OK ] Started Light Display Manager. [ OK ] Started ACPI event daemon.        Starting ACPI event daemon...        Starting Network Manager Script Dispatcher Service.... [ OK ] Started Network Manager Script Dispatcher Service.   The contents of /var/log/Xorg.0.log show a segfault.  Sorry I can't copy the backtrace now, but the chain goes  /usr/bin/X /usr/bin/X /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so /usr/bin/X /usr/bin/X /lib/x86_64-linux-gnu/libc.so.6 /usr/bin/X Segmentation fault at address 0x41   I'm on a Dell Precision m3800.  Since the nVidia driver is implicated in the stack trace, I'll start with swapping that out.  Any suggestions for my next steps to try to fix this?  thanks, Dennis