[Intel-gfx] [PATCH] xf86-video-intel: change order of DPMS operations

[Keith Packard]

On Thu, 08 Dec 2011 14:10:06 +0000, Chris Wilson <chris at chris-wilson.co.uk> wrote:

> I had to remind myself why both the driver and the kernel are both
> touching the backlight across DPMS; the answer as I see it is that the
> kernel only knows about the raw backlight interface whereas the driver
> adjusts it via the preferred interface (which should handle the cases
> where the backlight modulation is handled independently of the PWM
> registers).

Something in the kernel should be managing the backlight or we won't be
doing this right when fbdev is running. User space should not have to
know about the vagaries of the kernel backlight land.

-- 
keith.packard at intel.com
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