I'm also having this same problem. I have a dell notebook, Vostro 3550 model with AMD Radeon HD 6630M card. At first the screen flickered a lot for some minutes right after turning it on. After a while it stopped, but yesterday after I've downloaded and installed the last updates, the screen became completely black, and didn't stop blinking, on and off again.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/875504 Title: terrible screen flicker in 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/875504/+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