Suspending my system using « pm-suspend --quirk-radeon-off --quirk-vbemode-restore --quirk-vbestate-restore --quirk-vbe-post » as proposed in https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/318325/comments/9 doens't help. At resume my system's dispaly's still flickering.
Suspending my system using « pm-suspend --quirk-radeon-off --quirk- vbemode- restore --quirk- vbestate- restore --quirk-vbe-post » as proposed in https:/ /bugs.launchpad .net/ubuntu/ +source/ xserver- xorg-video- ati/+bug/ 318325/ comments/ 9 doens't help. At resume my system's dispaly's still flickering.