linux-kernel - Re: [Intel-gfx] [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4)

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Date:   Wed, 09 Nov 2016 11:42:36 +0200
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Martin Steigerwald <martin@...htvoll.de>,
        intel-gfx@...ts.freedesktop.org
Cc:     Intel Gfx Mailing List <intel-gfx@...edesktop.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Intel-gfx] [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel      Sandybridge (was: Re: Linux 4.9-rc4)

On Wed, 09 Nov 2016, Martin Steigerwald <martin@...htvoll.de> wrote:
> Also no graphics glitches with external DisplayPort connected display.

Thanks for confirming this. The fix should make it to -rc5.

> *However*, I got a soft freeze and a hard freeze (well after about a
> minute I gave up and rebooted by pressing power button long enough to
> forcefully switch off the laptop) when playing PlaneShift using
> drm-intel-fixes branch.
>
> Unfortunately I have no further time to debug any of this week, but it
> seems not all fixes are there are ready for next stable kernel.

Current drm-intel-fixes is just six commits on top of -rc4, and it's
very hard for me to believe any of those would cause the symptoms you
see. I presume the problem, whatever it is, is already in -rc4.

That, of course, is not a happy thing per se, but please don't block the
current batch of fixes by making unsubstantiated claims. Please do file
a bug about that issue over at [1] so we don't hijack this thread.

Thanks,
Jani.


[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel


-- 
Jani Nikula, Intel Open Source Technology Center