I'm afraid I don't have the system any longer. Also, I updated Ubuntu to its latest version to stop the flickering, so the problem has already been fixed by ubuntu. I guess it's a problem of backporting the latest fixes in Ubuntu 15.04 to 14.04.
Thanks for your attention, I guess the issue can be closed. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1481239 Title: Screen flicker in ubuntu 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1481239/+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