How do I get Unity working again after installing the wrong video driver?

Posted by Jesse on Ask Ubuntu See other posts from Ask Ubuntu or by Jesse
Published on 2011-09-02T00:22:23Z Indexed on 2011/11/20 10:24 UTC
Read the original article Hit count: 414

Filed under:

unity

|

graphics

First off I did something stupid. I downloaded a Nvidia driver even though I have an integrated chipset. After installation my unity was still working. However, when I restarted my computer I got an error message saying that I can't run unity.

I uninstalled the Nvidia driver.

I restarted my computer.

Unity still does not work.

In the terminal I type "unity" and everything looks okay until I get three error messages that say this:

Xlib:  extension "GLX" missing on display ":0.0".

followed by:

Compiz (opengl) - Fatal: glXCreateContext failed
Compiz (bailer) - Info: Ensuring a shell for your session
jesse@jesse-PC:~$ Cannot register the panel shell: there is already one running.

© Ask Ubuntu or respective owner

Related posts about unity

Unity 3D won't load - Choosing "Ubuntu" during login still loads Unity 2D

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I just installed Ubuntu 11.10 on my ASUS N43SL laptop and Unity 3D loaded right after installation. But upon reboot, I noticed that Ubuntu loaded Unity 2D instead of Unity 3D. I logged-off and made sure I had "Ubuntu" selected during login, but after many attempts Unity 3D just won't load. Just… >>> More
unity screensaver ? - plans for unity

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Are there plans to develop a screensaver specifically for Unity? Since Unity uses gnome-screensaver by default currently, seems like a reasonable area for a desktop to attract much user appreciation. (My personal interest is in a nice Pictures folder type slideshow screensaver with more settings… >>> More
Propose Unity Feature: Open Apps in the upper side of the Unity Launcher [closed]

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Possible Duplicate: What is the best medium for sending feature requests? I don't know if this is the right place to propose a feature. If someone can guide me to the correct forum, he's welcome. I want to propose that the opened applications appear in the upper side of the Unity Launcher… >>> More
12.04 Unity 3D Not working where as Unity 2D works fine

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I updated from 11.10 to 12.04 using the distribution upgrade, after that I couldn't log into using the Unity 3D desktop after logging in I would either never get unity's launcher or I would get the launcher and once I tried to do anything the windows lost their decoration and nothing would respond… >>> More
Unity 3D Not working where as Unity 2D works fine [closed]

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I updated from 11.10 to 12.04 using the distribution upgrade, after that I couldn't log into using the Unity 3D desktop after logging in I would either never get unity's launcher or I would get the launcher and once I tried to do anything the windows lost their decoration and nothing would respond… >>> More

Related posts about graphics

Low graphics performance with Intel HD graphics

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
hey, my laptop should be capable of running some games fine but doesn't. Examples are egoboo and tome. http://www.ebuyer.com/product/237739 this is my laptop. I tried the gears test and i only get 60 FPS, on IRC they said thats a big issue and should try the forums. I am using Ubuntu 11.04 and was… >>> More
Graphics card not working but integrated graphics is working

as seen on Super User - Search for 'Super User'
I have a PCIe Geforce 6600 that I've been using in my PC for a couple years now without problems. Recently though I've not been using the PC and had it unplugged. When I when to use it again I accidentally plugged in the monitor to the VGA port for the integrated graphics instead of the 6600 card… >>> More
how to use my radeon 6950 graphics card instead of Intel Graphics 4000

as seen on Super User - Search for 'Super User'
I have just recently put my build together, and I have installed my graphics card. The problem is that when i look at my computer's display it is saying that I am using the intel graphics that came with my CPU. Is there a way that i can get the Radeon graphics to run instead? Also, I tried plugging… >>> More
ATI graphics card overriding onboard Intel graphics

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have an ATI graphics card with an AGP connection and a DVI port, and an Intel graphics processor on the motherboard with a VGA port. I have two monitors. When the graphics card is unplugged, I get this from lspci: 00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller… >>> More
Gnome 3 freezes on logon on samsung RV 509

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a Samsung NP-RV509 A0FIN and I tried to install GNU/Linux with gnome 3.2 on it. I tried Fedora 16, Ubuntu 11.10 and Linux Mint 12 RC, but with no success. All of these freezes upon login into gnome shell. I think it is the problem with graphics driver, so I tried xorg-edgers ppa on my last… >>> More