Ubuntu – Unity missing? Can’t see top or side panels

12.10aticompizunity

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/ && 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.

Best Answer

Try the following:

Type the following in to a terminal:

dconf reset -f /org/compiz/

then

setsid unity

If this is an issue with Unity settings that will reset your config to default.

I hope that helps.