When I try to go to a virtual console (ctrl alt f1) and return to f7, my screen freaks out. Its black with frequent white 'lightning bolts' flashing across the screen. Nothing works, but to force shutdown.
Same when trying to resume from suspend.
This doesnt happen every time, but very often.
I dont know what information might be useful but:
ATI RS880M [Mobility Radeon HD 4200 Series]
Gallium 0.4 on AMD RS880
this line in xsession-errors might be pertinent:
(gnome-settings-daemon:1825): color-plugin-WARNING **: Done switch to new account, reload devices
p.s. Ive tried the fglrx drivers but need the legacy drivers as described here, but nothing past a black screen.