gnome-power-manager brightness doesn't work

[LEVIS Cyril]

Since a recent update, gnome-power-manager don't set correctly the brightness on my XPS m1330.

I move the slide in AC pref and nothing change, I put the slide to the maximum but when I plugin the AC, It doesn't move to the max, I must use the function keyboard shortcut for set correctly the brightness.

[Guido Conaldi (guido-conaldi)]

I can confirm that in Hardy 64bit up-to-date on my dell xps m1330 brightness controll does not work correctly:

-brightness FN keys seem to send double events: Pressing one time FN+Up or FN+Down changes brightness by 2 levels. Instead of having 8 levels it ends up having 4.

All options like dimming on battery and on idle do not work, consequently I guess.

[Pedro Villavicencio (pedro)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. Could you please attach the resulting log file of: gnome-power-bugreport.sh &> gpm.log to the report? You might also want to take a look to the Debugging instructions located at https://wiki.ubuntu.com/DebuggingGNOMEPowerManager for submit any other logs related to your problem.Thanks in advance.

[Guido Conaldi (guido-conaldi)]

This is the result of pressing once Fn+Down and then pressing once Fn+Up in hardy up-to-date on my dell m1330.
The visible effect however is going down and then up by two brightness levels.

[Guido Conaldi (guido-conaldi)]

I also attach the same log as created in gutsy, where the brightness levels are correctly scaled up and down one by one.

If there is anything else I should add to help you out, just let me know.
Hope this helps.

[Guido Conaldi (guido-conaldi)]

The issue actually got worse since the latest updates (I mean in the last few days). Now every Fn+Key input scale brightness by 4 levels.
Here is the updated lshal.log. Again, the log is the result of pressing once Fn+Down and then pressing once Fn+Up in hardy up-to-date on my dell m1330.

[Guido Conaldi (guido-conaldi)]

Just an update: none of the latest updates has solved the issue. Basically, on my dell xps m1330 hardy brightness control is unusable.

[LEVIS Cyril (atlas95)]

Same here, this doesn't work yet.