[Bug 75401] [edp] When laptop monitor is turned off it periodically turns on for a fraction of a second

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75401

Kresimir Pripuzic <grebator at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #20 from Kresimir Pripuzic <grebator at gmail.com> ---
(In reply to Ville Syrjala from comment #18)
> This sounds like the long hpd we get on vdd off. Which we now ignore since
> 
> commit 7a7f84ccb82e542c845c43f604665ccea1247866
> Author:     Ville Syrjälä <ville.syrjala at linux.intel.com>
> AuthorDate: Thu Oct 16 20:46:10 2014 +0300
> 
>     drm/i915: Ignore long hpds on eDP ports
> 
> And it looks like eDP is on port D here, which explains why we even have the
> HPD interrupt enabled (it wouldn't be on port A).
> 
> So yeah, please re-test with latest nightly or with something that has my
> fix included.

You are right Ville. 

I have tested my laptop with the current nightly
(http://cgit.freedesktop.org/drm-intel/snapshot/drm-intel-74e0fec574539a1466ddc9d53f5bc9eb1de9f299.tar.gz)
and the screen doesn't flash anymore. :) You can find new dmesg output in the
attachments.

Thanks a lot. The problem is finally solved.

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