Comment 66 for bug 357673

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Johannes Hessellund (osos) wrote : Re: No notification when sliding audio volume, muting volume, sliding LCD brightness on X31, X32, T60, R50e, T42, R52

I dont know how to fix for the sound volume.

But for brightness, the I think the right solution is to enable the hotkeys, and let g-p-m handle it.
g-p-m only does notification and no actions. Unfortunately the notification does not reflect the real brightness level on my box.

Brightness should be fixed in g-p-m.
http://svn.gnome.org/viewvc/gnome-power-manager/trunk/src/

bwalex:
As your a C programmer, I am sure you could easyli patch g-p-m to fix the brightness issue !?

For sound button events:
Maybe it is posible to disable hal's handling of the these keys, and let the apci scripts in /etc/acpi handle it. This way polling is avoided!