Messages in this thread | | | From | Martin Steigerwald <> | Subject | Re: [Intel-gfx] [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) | Date | Tue, 08 Nov 2016 16:11:31 +0100 |
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Am Montag, 7. November 2016, 19:09:36 CET schrieb Jani Nikula: > 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.
For now commit 54905ab5fe7aa453610e31cec640e528aaedb2e2 of drm-intel-fixes branch seems to work okay. I can only test with laptop display at the moment. But I will test with external display this evening – in case the issue at hand is DisplayPort related.
I will add this information to fdo bug 98402 as well.
Thanks, Martin
> > 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.
-- Martin
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