Comment 12 for bug 114677

i'm glad to hear that a fresh install worked for you. i have been contemplating that, as i assumed that my problems were related to my switch to xubuntu, even though after i switched back to gnome, things weren't any better. out of curiosity, what graphics driver are you using and what package is it supplied by?

for example, the pertinent section in my xorg.conf is:

Section "Device"
        Identifier "Intel Corporation Mobile Integrated Graphics Controller"
        Driver "i810"
EndSection

and to find the package that the video driver came from i did:
% dpkg -S i810_drv.so

which returned:
xserver-xorg-video-intel: /usr/lib/xorg/modules/drivers/i810_drv.so