** Changed in: xorg-server
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1643843
Title:
Distorted colours after suspend / resume cycle
To manage notificatio
** Changed in: xorg-server
Status: Fix Released => Confirmed
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https://bugs.launchpad.net/bugs/1643843
Title:
Distorted colours after suspend / resume cycle
To manage notificatio
** Changed in: xorg-server
Status: Confirmed => Fix Released
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Title:
Distorted colours after suspend / resume cycle
To manage notificatio
** Changed in: xorg-server
Status: Unknown => Confirmed
** Changed in: xorg-server
Importance: Unknown => Medium
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Title:
Distorted col
I can't bisect the problem, because for the two kernels I build, suspend was
broken and the PC didn't wake up from 2nd suspend :-(
I also tried 4.9-rc6 (albeit on an Arch Linux), which shows the same bug.
** Package changed: xorg (Ubuntu) => linux-lts-xenial (Ubuntu)
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So I applied this "big hammer" solution of the patch to the Trusty
(14.04) Xenial HWE kernel (4.4.0-47.68~14.04.1) and this fixes the bug.
I'll give it some more testing, while bisecting v4.0 to v4.1.
** Bug watch added: freedesktop.org Bugzilla #98832
https://bugs.freedesktop.org/show_bug.cgi?
$ git bisect log
# bad: [89e419960fb6a260f6a112821507d516117d5aa1] Linux 4.1.4
# good: [c8bde72f9af412de57f0ceae218d648640118b0b] Linux 4.1.3
git bisect start 'v4.1.4' 'v4.1.3'
# good: [e0cf83cc3de0341d8cabbb23097ad85f5ce97a11] drm/qxl: Do not leak memory
if qxl_release_list_add fails
git bisect
Hmm - so I'm not sure what's going on here. I started bisecting v4.1 ..
v4.2.8 and I couldn't find a working version in 6-7 bisects and when I
checked rest of the commit set in the bisect, it couldn't find any
commits to drivers/gpu?!
So I decided to test Ubuntu mainline kernels a little bit more
So I downloaded some kernels from http://kernel.ubuntu.com/~kernel-
ppa/mainline/?C=N;O=D
Working: linux-image-4.1.35-040135-generic_4.1.35-040135.201610241431_amd64.deb
Broken: linux-image-4.2.7-040207-generic_4.2.7-040207.201512091533_amd64.deb
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While keeping the Xenial HWE stack on Ubuntu Trusty (14.04), I tried
various installed HWE kernels.
It seems it really broke with the Wily kernel (4.2.0.42.34). The Vivid
kernel (3.19.0.74.56) has survived multiple resume cycles, while Wily
instantly created the problem.
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Now I tried all the Trusty HWEs and it seems to have started with Wily.
xserver-xorg-video-radeon-lts-wily 1:7.5.0+git20150819-0ubuntu1~trusty1
linux-image-generic-lts-wily 4.2.0.42.34
xserver-xorg-core-lts-wily 2:1.17.2-1ubuntu9.1~trusty1
mesa-lts-wily 11.0.2-1ubuntu4~trusty1
I had once wrong co
I couldn't reproduce the problem with Trusty (14.04) using its original
HWE stack (AKA Kernel 3.13).
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Title:
Distorted colours after suspend / re
This is just a display problem - a snapshot is correct, so it really
looks like a radeon driver problem, instead of an xorg problem.
The wrong colors are always different, so every cycle produces a
different result. For a photo as background it almost looks like modern
art ;-)
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** Attachment added: "Correct Unity desktop"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1643843/+attachment/4781463/+files/photo_desktop_ok.jpg
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