If I stop compiz then problem disapear it means: using gnome-display-properties problem seen switching off compiz using gnome-display-properties problem not seen
with compiz doing xrandr -s 0 clear the problem For EXA edited /etc/X11/xorg.conf put Option "AccelMethod" "EXA" restart X11 cat /var/log/Xorg.0.log | grep EXA (**) RADEON(0): Option "AccelMethod" "EXA" (**) RADEON(0): Using EXA acceleration architecture (==) RADEON(0): Not using accelerated EXA DownloadFromScreen hook (II) RADEON(0): Setting EXA maxPitchBytes (II) EXA(0): Offscreen pixmap area of 24526848 bytes (II) EXA(0): Driver registered support for the following operations: problem reproducible with EXA -- Radeon 9200 cannot properly reset screen to 1280x800 https://bugs.launchpad.net/bugs/291571 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs