Comment 38 for bug 311716

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Stefan Bader (smb) wrote : Re: [Bug 311716] Re: The slider brightness Applet has value inverted after the last update (2.6.27-11)

@Terrax,

sounds promising. :) Thanks for testing. I hope this goes similarly well for
the others. No I actually did not revert in that sense. I kept the new
infrastructure but added a new "default". With the new code added to -11 it was
either acpi or vendor backlight control. While before actually both were active
and thus causing problems for some others (values changed twice). Long term it
should be either the one or the other but it seems this easily breaks. Possibly
the hotkey functions in the laoptop specific drivers somehow are too tightly
relying on both interfaces to be active. But then trying to get this fixed
should be done rather in a development kernel.
The way it would be with that patch I made would be to have both interfaces
active by default (as before) but additionally allow to specify module options
to force only one of those two to be active.