Here is the patch I came up with. Basically, when the "idle" callback is called, this will stop it from changing the brightness if idle dimming is disabled. Hope this is suitable - I know one could suppress the idle callback from being called, but it seems that it is used for other things (gscreensaver, etc). If not, then that would be the preferred solution.
** Attachment added: "gpm-backlight.c.diff" http://launchpadlibrarian.net/9690288/gpm-backlight.c.diff -- Screen brightness resets to default (maximum) on idle with AC plugged in https://bugs.launchpad.net/bugs/137598 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