Comment 12 for bug 1105171

With 3.5.0-22.34 kernel (with fglrx), there is another way to reproduce this. On the menu on the right top, choose "logout", the monitor goes blank and the lightdm login screen does not show.

>From `top` can see the Xorg process occupies 100% CPU.

>From the Xorg.0.log the last lines are:

[ 35.682] (II) fglrx(0): Shutdown CMMQS
[ 35.682] (II) fglrx(0): [uki] removed 1 reserved context for kernel
[ 35.682] (II) fglrx(0): [uki] unmapping 8192 bytes of SAREA 0x2000 at 0x7f981aec6000