Re: [PATCH] Fix i915 drm regression on AOpen i915GMm-HFS motherboard

From: Chris Wilson
Date: Mon Jan 03 2011 - 14:59:44 EST

On Mon, 3 Jan 2011 11:45:48 -0800, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, Jan 3, 2011 at 10:12 AM, Knut Petersen
> <Knut_Petersen@xxxxxxxxxxx> wrote:
> >
> > I tried 2.6.37-rc8-git2 with both patches applied.
> I thought Chris meant "instead of", rather than "both". Chris?

Right, I was trying to ascertain whether the intel_lvds_ddc_probe()
correctly detected the missing panel. That function currently requires
GMBUS to differentiate between a NAK and an IO error (bitbanging just
returns EREMOTEIO regardless, iirc). So far it has been successful in
detecting one false-positive for an AOpen All-in-one and hasn't fouled
up LVDS detection for the laptops I have.

Chris Wilson, Intel Open Source Technology Centre
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