[Intel-gfx] [PATCH] drm/i915: Recognise non-VGA display devices

[Dave Airlie]

On Fri, Jan 21, 2011 at 1:07 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> Starting with SandyBridge (though possible with earlier hacked BIOSes),
> the BIOS may initialise the IGFX as secondary to a discrete GPU. Prior,
> it would simply disable the integrated GPU. In such a configuration, the
> IGFX is not a primary VGA controller and so should not take part in VGA
> arbitration.

VGA arb shouldn't happen for any devices not VGA class, it shouldn't place the
devices into the arb list at all in this case.

Dave.