Public bug reported: Binary package hint: linux-source-2.6.22
I have a Dell 1420n laptop. When on battery power, my screen will dim and brighten rather randomly. The most common occurance is if I don't touch my laptop for about 1 minute, the screen will dim much like in Mac OSX, however, when I touch the mouse, the brightness fails to return to whatever I had it set at. Another example: I had my screen dimmed down to about 50% to conserve battery and after about 1 minute of not doing anything with my computer, it randomly returned to 100% brightness. After it happened, to test it, I repeated the process of dimming to 50% and not touching the keyboard or mouse for 1 minute and the screen returned to 100% brightness. The screen will also 'do it's own thing' as far as brightness when I'm doing just about anything, it will randomly decide to dim or brighten. It seems like it will do it a lot in a short period of time and then not do it at all for a while. These are my power settings for battery power: (As soon as I opened my power manager, my screen returned to 100% brightness just now. :-/ ) Put computer to sleep: Never When laptop lid is closed: Suspend When battery power is critically low: Shutdown Put display to sleep when inactive for: 10 min Dim brightness by: 0% Dim display when idle box: unchecked An aside: when on A/C power, I have the 'dim display when idle' box checked, and the dimming function works fine and will return to 100% or previous brightness when the mouse or keyboard is touched. For other models of computers with this problem, see thread in Ubuntu forums: http://ubuntuforums.org/showthread.php?t=595211 I'll refer them here as well to report their own confirmations. ** Affects: gnome-power-manager (Ubuntu) Importance: Undecided Status: New ** Affects: linux-source-2.6.22 (Ubuntu) Importance: Undecided Status: New ** Also affects: gnome-power-manager (Ubuntu) Importance: Undecided Status: New -- 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
