Origin of the bug: xserver-xorg-video-intel
1) Adjustment in `/usr/share/X11/xorg.conf/20-intel.conf` when the bug
does not occur in the internet browsers:
# Joakim
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "sna"
Option "TearFree" "true"
Option "DRI" "3"
Option "Backlight" "intel_backlight"
EndSection
The resolution is somehow related to `intel_backlight` but we do not
know how.
2) Another option is to purge the package but then you cannot make the
other fixes (etc of F5/F6 keys) with the file 20-intel.conf.
Conclusion
---
(1) works such that you can use 20-intel.conf for other fixes. However, we do
not understand how. Please, confirm if you can fix the case with (1) such that
we can understand better the origin of the bug.
Hardware: Asus Zenbook UX303UA R4028T
Ubuntu: 16.04 64 bit
Linux kernel: 4.7
Related: http://askubuntu.com/q/816631/25388
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https://bugs.launchpad.net/bugs/1586539
Title:
Major screen flickering in Chromium and Google Chrome
Status in X.Org X server:
Unknown
Status in xserver-xorg-video-intel package in Ubuntu:
Triaged
Bug description:
On a fresh installation of Ubuntu 16.04 I noticed major screen
flickering issues in Chromium and Google Chrome browsers. Since this
never happened in Ubuntu 15.10 with exactly the same Google Chrome
binary, I believe, bug is caused by something that was added/updated
in 16.04. I came across some discussions where different people
suggested that it is related to new X.Org version.
Here's a video to show what is happening:
https://youtu.be/l21WsKz3fZc?t=45s
I could fix this flickering with --disable-gpu-compositing switch, but
this slows down page drawing significantly so it can't be considered a
workaround. There is also a Chromium bug report:
https://bugs.chromium.org/p/chromium/issues/detail?id=606152, but I
don't think they will fix an Ubuntu-specific bug.
Update: this indeed happens only when browser window is maximized.
WORKAROUND:
1. sudo apt-get purge xserver-xorg-video-intel
2. sudo rm /usr/share/X11/xorg.conf.d/20-intel.conf (for those who created
this file before)
3. reboot
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
Uname: Linux 4.6.0-040600-generic x86_64
.tmp.unity_support_test.0:
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
BootLog:
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Sat May 28 00:01:20 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
vboxhost, 5.0.20, 4.4.0-22-generic, x86_64: installed
vboxhost, 5.0.20, 4.6.0-040600-generic, x86_64: installed
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Haswell-ULT Integrated Graphics
Controller [1043:13bd]
InstallationDate: Installed on 2016-05-01 (26 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
MachineType: ASUSTeK COMPUTER INC. UX301LAA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.6.0-040600-generic
root=UUID=172b2d49-444a-466b-ab91-b74605125b29 ro quiet splash rootfstype=ext4
vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/05/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX301LAA.211
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX301LAA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrUX301LAA.211:bd06/05/2015:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX301LAA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.12-1build2
xserver.bootTime: Sun May 22 23:28:15 2016
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 5126
vendor SHP
xserver.version: 2:1.18.3-1ubuntu2
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