I'm seeing the exact same problem on my Lenovo Thinkpad Z61m. The brightness is correctly dimmed when going from AC to battery, but is not fully restored to 100% after plugging the AC back in. It increases, but only up to level MAX-1 (90% or so, after *one* unplug/plug cycle). This results in the behaviour described in this bug report, where the total trend is overall decreasing brightness after many AC unplug/plug events. It is very easy to reproduce.
$ gconftool -a /apps/gnome-power-manager/backlight idle_dim_battery = true idle_brightness = 30 dpms_method_battery = default dpms_method_ac = default idle_dim_time = 30 brightness_battery = 70 enable = true idle_dim_ac = false battery_reduce = true brightness_ac = 100 -- g-p-m does not honor its configuration for LCD brightness levels after multiple unplug-replug from AC https://bugs.launchpad.net/bugs/215484 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
