(In reply to Andrew Randrianasulu from comment #38) > unfortunately, running with RADEON_DEBUG=notiling gives no visible > improvements.
You have to disable tiling in the ddx as well in the device section of you xorg config: Option "ColorTiling" "false" -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1547235 Title: 1002:7942 [Samsung NP-R40FY0E/SEG] Graphical corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/1547235/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp