I also experience this issue on an Acer Travelmate 5520 with AMD Turion processor and ATI Radeon 1250 gfx.
Further to the description above - all of which occurs on this machine - when running on battery the brightness does change to its lower setting (as specified in the power saving applet) but periodically flickers between bright and dim. -- Brightness applet flickers on Toshiba Satellite A105 (A105-S4254) https://bugs.launchpad.net/bugs/155030 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs