This should have been fixed with the latest update to clutter, kindly update and try again, do check if the problem still exists now?
Also, Bilal was talking about Bug 641523 , while this bug was an issue with the mesa / clutter and a blank white screen. [not flashing] ** Changed in: xserver-xorg-video-ati (Ubuntu) Importance: Undecided => Medium ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: New => Incomplete -- [radeon] White screen upon launch of Unity https://bugs.launchpad.net/bugs/638948 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