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
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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.

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