|Summary:||xf86-video-intel, skl: Text corruption in variety of cases -- Firefox, Konsole, and more|
|Product:||xorg||Reporter:||Armin K <krejzi>|
|Component:||Driver/intel||Assignee:||Chris Wilson <chris>|
|Status:||CLOSED FIXED||QA Contact:||Intel GFX Bugs mailing list <intel-gfx-bugs>|
|i915 platform:||i915 features:|
Description Armin K 2016-05-12 20:09:59 UTC
Created attachment 123654 [details] Text corruption screenshot When viewing github popups with Firefox on my Skylake GT2 system, the rendered text is corrupted (see screenshot). On rare occassions, I see the same thing when scrolling in Konsole. xf86-video-intel git master from earlier today (sna + dri3), linux 4.6.0-rc7, xorg-server 1.18.3, Mesa 11.3.0-devel (git-be5010c).
Comment 1 Chris Wilson 2016-05-13 20:29:24 UTC
Can you please try "git revert 81029be07380090195d165fab91d3e1fe1d84bb9" ?
Comment 2 Armin K 2016-05-13 20:36:51 UTC
(In reply to Chris Wilson from comment #1) > Can you please try "git revert 81029be07380090195d165fab91d3e1fe1d84bb9" ? Didn't change a thing. As a side note, the issue doesn't appear when I switch to UXA, so it's indeed a SNA issue.
Comment 3 Chris Wilson 2016-05-16 09:19:47 UTC
I think I see the same glitch sporadically (it looks like swizzling, where a pair of 16 pixels are swapped over). It's proving very difficult to reproduce reliably and bisects are not yet revealing anything tangible.
Comment 4 Chris Bainbridge 2016-05-17 08:38:46 UTC
I saw similar Firefox glitches a few months ago after updating the kernel - the kernel bisect led to changes made to the ACPI interpreter, and once that was fixed the glitches went away. So perhaps try an older kernel if possible.
Comment 5 Jason A. Donenfeld 2016-09-07 22:04:03 UTC
Created attachment 126287 [details] Text Corruption in Konsole I can confirm this bug. Attached is a screenshot of the bug on Konsole when scrolling rapidly. Reproducible easily every time. Skylake P530.
Comment 6 Jason A. Donenfeld 2016-09-07 22:05:20 UTC
(In reply to Chris Wilson from comment #3) > I think I see the same glitch sporadically (it looks like swizzling, where a > pair of 16 pixels are swapped over). It's proving very difficult to > reproduce reliably and bisects are not yet revealing anything tangible. Open up Konsole. Do something to get a lot of text on the screen. Scroll up and down in the window really fast. That reproduces it every time for me.
Comment 7 Armin K 2016-11-03 11:53:30 UTC
I can't reproduce this bug anymore.
Comment 8 yann 2016-11-03 12:52:30 UTC
(In reply to Armin K from comment #7) > I can't reproduce this bug anymore. Please confirm your current environment where bug is not reproduced
Comment 9 Armin K 2016-11-03 16:00:19 UTC
xf86-video-intel snapshot from Sep 28 2016, xorg-server-126.96.36.1992, mesa-13.0.0, linux-4.8.6.
Comment 10 yann 2016-11-03 16:28:33 UTC
(In reply to Armin K from comment #9) > xf86-video-intel snapshot from Sep 28 2016, xorg-server-188.8.131.522, > mesa-13.0.0, linux-4.8.6. thx :)
Comment 11 Joseph Yasi 2017-01-09 15:56:09 UTC
I'm still seeing this in Konsole with xf86-video-intel git 028c946df0855728b2a34d1d588701dc6c5ad4c1 from 2017-01-03, Mesa 13.0.3, Linux 4.9.1, and xorg-server 1.18.4. I will try bumping xorg-server to match Armin K's environment.
Comment 12 Armin K 2017-01-09 16:19:56 UTC
I was on X Server 1.19 release candidate, not 1.18.4. Maybe there's the catch?