Re: [PATCH 4/5] drm/i915: Check live status before reading edid

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Yes we had the issue of incorrect edid read.
But as of now you can go ahead with the revert.
I have moved to a different group, so I am not working on this anymore.

Regards,
Sonika

-----Original Message-----
From: Chris Wilson [mailto:chris@xxxxxxxxxxxxxxxxxx] 
Sent: Tuesday, August 2, 2016 8:02 PM
To: Daniel Vetter <daniel@xxxxxxxx>; Jindal, Sonika <sonika.jindal@xxxxxxxxx>; intel-gfx@xxxxxxxxxxxxxxxxxxxxx
Subject: Re:  [PATCH 4/5] drm/i915: Check live status before reading edid

On Tue, Jul 12, 2016 at 02:39:47PM +0300, David Weinehall wrote:
> I'm feeling sorely tempted to treat this as a proper regression, and 
> simply submit a revert patch, seeing as it slows down resume by 
> something like 200ms, but seeing as there was mention of a case where 
> incorrect EDID-information might end up being read after resume on 
> some Chromebooks, I'll just try to open a discussion instead.

Wrt https://bugs.freedesktop.org/show_bug.cgi?id=97139 this is a regression and I'll ack the revert. Yes, we need to resolve exactly how we get a stall between intel_hdmi_detect() and pageflip/cursor, but the onus is on the submitter of the patch to fix existing issues first to prevent such regressions (if possible, or else mitigate them).
-Chris

--
Chris Wilson, Intel Open Source Technology Centre
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