linux-kernel - Re: [git pull] drm fixes for 4.9-rc4

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Message-ID: <CA+55aFx592xEzJr7xBShaxT+O215M2FhbdO+sPi18qd66QJong@mail.gmail.com>
Date:   Fri, 4 Nov 2016 13:38:25 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Dave Airlie <airlied@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: [git pull] drm fixes for 4.9-rc4

On Wed, Nov 2, 2016 at 5:31 PM, Dave Airlie <airlied@...il.com> wrote:
>
> There are a set of fixes for an oops we've been seeing around MST
> display unplug,

Side note: I heard from a couple of people at the KS that said that
they had had problems with suspend/resume after plugging in to a 4k
display (but _only_ a 4k display - apparently normal FHD displays
didn't show this). I think at least one was USB3/Thunderbolt. Ted with
a Lenovo laptop (intel GPU) was one, I forget who else mentioned this.

I wonder if MST may have been involved. That would explain the "only
happens for 4k" issue - I assume pretty much all MST displays are 4k.

suspend/resume might obviously fall very much under that "unplug"
issue and maybe this pull request thus already fixes it, but there
might be something that is specific to _just_ suspend/resume too.

Mind taking a look?

                Linus