I have ubuntu 12.10 64 bit. Compiz crashed just after I changed a setting in touchpad section (I didn‘t even have the ccsm installed). Now I am getting a blank screen without title bar, etc - only mouse is working. Alt-F2 also doesn‘t work. The same thing happens with guest account also. I‘ve also tried restarting multiple times.
tty1(ctrl-alt-f1), I tried running
DISPLAY=:0 compiz --replace DISPLAY=:0 compiz --reset DISPLAY=:0 unity --replace DISPLAY=:0 unity --reset
None has worked so far. The first two commands give the error:
Invalid MIT-MAGIC-COOKIE-1 keycompiz (core) - Fatal: Couldn‘t open display :0
or sometime just hang.
unity --replace just hangs after giving a lot of
Plugin init failed errors alongwith
Error: Plugin ‘opengl‘ not loaded and
unity --reset says
reset is deprecated.
I also don‘t see any ubuntu logo beside the username, so I am unable to login in unity 2d.
I have AMD HD 7730m and I was not able to install the proprietary driver before the crash.