Since it's maybe with the drivers I opened a freedesktop bug: https://bugs.freedesktop.org/show_bug.cgi?id=24074
** Bug watch added: freedesktop.org Bugzilla #24074 https://bugs.freedesktop.org/show_bug.cgi?id=24074 -- kwin desktop effects black desktop https://bugs.launchpad.net/bugs/433173 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ 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