Re: [intel/acpi] backlight

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On Monday, December 1, 2008 12:38 am Matthew Garrett wrote:
> On Sun, Nov 30, 2008 at 10:28:30PM -0500, Len Brown wrote:
>
> (Cc:ing Jesse)
>
> > in single user mode, i915 is not loaded,
> > /sys/class/backlight/acpi_video0 does NOT work
> >
> > modprobe of i915 does not change this.
>
> Jesse, are IRQs being delivered to the drm code when X isn't the
> foreground VT? If not, this would seem to need fixing.

The X driver calls into the DRM to disable IRQs when it releases the VT, but 
we could make that just affect vblank interrupts if needed (yay more 
i915_irq.c changes).

Jesse
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