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SubjectRe: [Intel-gfx] [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4)
Date
On Mon, 07 Nov 2016, Martin Steigerwald <martin@lichtvoll.de> wrote:
> It is also the same kind of corruptions as shown in
>
> [Bug 177701] warning in intel_dp_aux_transfer
> https://bugzilla.kernel.org/show_bug.cgi?id=177701
>
> Just compare
>
> https://bugzilla.kernel.org/attachment.cgi?id=241801
>
> with
>
> https://martin-steigerwald.de/tmp/display-issues-with-kernel-4.9-rc4.png
>
>
> However that bug report links to
>
> https://bugs.freedesktop.org/show_bug.cgi?id=97344
>
> yet the patch mentioned in there does not fix the issue. So I wonder whether
> bug #97344 and bug #177701 are really the same.

They are the same, it's just that #177701 conflates two issues, a
warning (tracked at fdo #973449) and a graphics corruption. The latter
appears to be https://bugs.freedesktop.org/show_bug.cgi?id=98402.

The fix has now been pushed to drm-intel-fixes branch of
http://cgit.freedesktop.org/drm-intel, which is -rc4 plus half a dozen
latest fixes. Please try that and report back.

> Of course I can report a bug at fdo as well, but I am a bit confused
> whether it may not already have been reported. Well I hope I get a
> chance to report it there as well and you get to decide.

If drm-intel-fixes doesn't fix the issue for you, please file a *new*
bug over at the freedesktop.org bugzilla.

BR,
Jani.

--
Jani Nikula, Intel Open Source Technology Center

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