http://bugzilla.kernel.org/show_bug.cgi?id=12233





------- Comment #28 from no...@gmx.net  2008-12-23 03:10 -------
(In reply to comment #26)
> Sometime when I was doing nothing, the screen would change the brightness 
> itself, mostly change from the highest or lowest level to the middle. 

Had the same problem, tracked it down to gnome-power-manager which seems to
think it needs to adjust the brighness once in a while while idling.

(In reply to comment #27)
> (In reply to comment #24)
> > can you compile the fujitsu-laptop module with debug
> > (CONFIG_FUJITSU_LAPTOP_DEBUG) and load it with debug=0xffff
> > and check whats happening in detail (with and without gnome running!)
> 
> I'll try to do this tonight, but I never compile a module alone or compile it
> with debug or load it with debug before, so maye it will cost me a few days. 
> :)

The debug option is a kernel option and you can (probably) also enable/disable
the debug on runtime with /sys/module/fujitsu_laptop/parameters/debug.


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