OTOH, the mainline deb 2.6.34-999-generic and xserver-xorg-video-ati 1:6.13.0-1ubuntu5 causes the problem again (as well as hardlock on removing AC power as in bug 535653
OTOH, the mainline deb 2.6.34-999-generic and xserver- xorg-video- ati 1:6.13.0-1ubuntu5 causes the problem again (as well as hardlock on removing AC power as in bug 535653