This affect me as well, i have an old laptop which had only one Readeon HD4530 family display driver card.
The screen always flicker, both laptop screen , external monitor. ubuntu 14.04, 14.10, 15.04, 15.10 beta had the same issues. I can not find any help to deal with it. I thought it because the OpenGL , because i installed Gnome shell desktop, the screen flicker less than ubuntu unity desktop. But we can not display OpenGL by hand. or Unity desktop broken. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1366879 Title: external monitor flicker in radeon driver on RV710/M92 [Mobility Radeon HD 4530/4570/545v] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1366879/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
