[Intel-gfx] [PATCH] Description for "Backlight" property in randrproto.txt

[Matthias Hopf]

On Aug 18, 09 08:55:30 -0700, Jesse Barnes wrote:
> > I'd like to document the Backlight property as a known good property.
> > Comments?
> 
> I don't know how easy it will be to turn off the backlight in all cases
> (iirc on some machines a 0 value passed to the hardware is minimum
> brightness, and the only way to turn things off is to turn off the
> panel altogether).  Other than that it looks fine.

Yeah, that's why I wrote SHOULD only, which indicates desired behavior.
I have a patch sitting here now that might help on some systems to
achieve this (by writing to bl_power as well).

Matthias

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