Re: Compaq evo n800v

Hello,

I wouldn't be so sure -- I have an Asus L380C with a Radeon M7 and I've
had no problems changing brightness so far, be it with, or without DRI.

On the Evo N800c I'm using right now, I got the impression that
changing the display brightness does completely bypass the ACPI
system. The associated keys (Fn+F7 or Fn+F8) do not show up on the
console (at least showkey shows nothing for them) and patching some of
the DSDT methods with debug statements did not show anything.

So I guessed changing the display brightness would write directly into
some of the registers of the graphics card. But of course I may be
simply wrong here :-).

Regards and thanks for the input,

Stephan


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