[Intel-gfx] I915 regression : black screen at boot / Sandybridge Mobile (GT2)

[Jesse Barnes]

On Thu, 12 Jan 2012 23:21:10 +0100
Vincent Vanackere <vincent.vanackere at gmail.com> wrote:
> I'm happy to report that this patch indeed fixes the issue for me (tested
> both on linus' master and drm-intel-next).
> Note that I had to apply it by hand (the patch was mangled by your mailer
> ?), therefore I'm resending your fix as an attachment in case other people
> are interested.
> 
> Many thanks for the quick fix !

Great, thanks for testing.  Your fixed up patch was missing one line
though, can you re-test with it added?  

After the:
	temp &= ~PORT_TRANS_SEL_MASK;
you need to also add a:
	temp |= PORT_TRANS_SEL_CPT(pipe);

in case you end up running the LVDS off of transcoder B.

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center
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