I am using Ubuntu 13.04. My computer has the below graphic card:

jatin@jatin-HP-Pavilion-dv6-Notebook-PC:~$ lspci -nn | grep VGA

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Seymour [Radeon HD 6400M/7400M Series] [1002:6760]

I do not have NVidia graphic card installed. Given that I have to program on NVidia Cuda, I installed its drivers and setup from here (atleast so that I could compile the programs and run it on aws). For some reason since I have installed it, my unity has broken.

i.e. Only the desktop is shown without all the panels, launcher bar etc. I have tried every solution on the net since a day and have been unsuccessful (reinstall unity, ccms and enabling Unity plugin etc etc). I am a Ubuntu novice, but I think installing nvidia graphic driver might have done something weird.

Can someone please help on how to get my unity working well. (If I run ubuntu in gnome fallback mode, it runs perfectly well)

PS: I do not know if the below is helpful, but I found it to be weird:

On doing setsid unity, it shows this:

compiz (core) - Error: Plugin 'opengl' not loaded.



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

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

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

Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0

compiz (core) - Info: Loading plugin: grid

compiz (core) - Info: Starting plugin: grid

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

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

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

Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0

compiz (core) - Info: Loading plugin: session

compiz (core) - Info: Starting plugin: session

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

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

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

Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0

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

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

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

Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0

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

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

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

Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0

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

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

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

Moreover, when I enable Unity Plugin by doing ccms. It gets enabled but on restarting ccms, it gets unselected again.