From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Wilson <chris@chris-wilson.co.uk>
Subject: Re: has the i915 "black screen" boot issue returned? [BISECTED]
Date: Fri, 28 Jan 2011 15:39:14 +0000
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To: "Robert P. J. Day" <rpjday@crashcourse.ca>
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On Fri, 28 Jan 2011 10:27:09 -0500 (EST), "Robert P. J. Day" <rpjday@crashcourse.ca> wrote:
>   victory is mine!  ok, that premature return seems to have solved it,
> i'm up and running under this new kernel.  are we getting close?

Not even close. We just disabled functionality that was working in 2.6.37;
the interaction between ACPI and gfx. What a shame.

Instead of return -ENOTSUPP at the start,
you can return 0 before each of the if (mboxes & MBOX_*) to narrow down
which function regressed.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre