I enabled ppa:canonical-x/x-staging. Corruption looks now a little different, but is still there.
** Attachment added: "screenshot" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1492580/+attachment/4462027/+files/Screenshot%20from%202015-09-12%2008%3A31%3A06.png -- 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/1492580 Title: Display corruption To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1492580/+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