I have the same problem, on a Dell Inspiron E1505. It appeared immediately after upgrading from Feisty to Gutsy.
I almost always have AC power, and my Power Management settings include: * Put display to sleep when inactive for: 40 minutes (default, unchanged); * Set display brightness to: 0% (changed from default 100%); * Dim display when idle: unchecked (I forget the default). If I need a brighter screen, then I like to brighten it from the keyboard, which on this machine uses Fn-Up and Fn-Down. This gives me a little picture, just like the one I get when I adjust the volume from the keyboard, showing my adjustment on a sliding scale. It also does change the actual brightness. Ten minutes later, regardless of what I'm doing or have done, the brightness goes back down to the lowest setting. I can make this happen earlier by opening the Power Management settings. If I change Power Management's "Set display brightness to" setting, then this is what the brightness will change to after 10 minutes. -- Screen dims and brightens randomly https://bugs.launchpad.net/bugs/158343 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
