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Message #137135
[Bug 1492170] Re: Screen flicker and resolution problems after hot-plug
** Tags removed: bios-outdated-a15
** Tags added: latest-bios-a15
** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Low => Medium
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https://bugs.launchpad.net/bugs/1492170
Title:
Screen flicker and resolution problems after hot-plug
Status in linux package in Ubuntu:
Incomplete
Bug description:
After upgrading to Wily, when I change the configuration of screens
attached (specifically: dock the laptop to a docking station with a
vertically larger external screen or open the laptop to activate the
internal screen while correctly running with said external screen)
this causes various display issues, including flickering while the
mouse cursor is moved and or one screen flickering the contents of the
other; incorrect resolution; incorrect offset of displayed screen
contents on screen. I saw similar (can't say whether or not
identical) effects using the stock 4.1.0-3.3 generic kernel, and
mainline generic kernels 4.0.0-040000rc2.201503031836 (working before
the first reboot after upgrading to Wily), 4.1.3-040103.201507220129
and 4.1.6-040106.201508170230. In addition (probably a separate
issue), when booting 4.1.0-3.3 to external monitor only, the mouse
cursor was not shown.
After my last test I was able to bring things back to "normal" by
killing the X server and logging in again.
$ lsb_release -rd
Description: Ubuntu Wily Werewolf (development branch)
Release: 15.10
$ apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
Installed: 2:2.99.917+git20150808-0ubuntu2
Candidate: 2:2.99.917+git20150808-0ubuntu2
Version table:
*** 2:2.99.917+git20150808-0ubuntu2 0
500 http://de.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu2
Uname: Linux 4.1.6-040106-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.18-0ubuntu9
Architecture: amd64
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: Fri Sep 4 11:11:59 2015
DistUpgraded: 2015-09-03 15:02:03,761 DEBUG enabling apt cron job
DistroCodename: wily
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:05cb]
InstallationDate: Installed on 2014-08-01 (399 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Dell Inc. Latitude E7440
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.1.6-040106-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: Upgraded to wily on 2015-09-03 (0 days ago)
dmi.bios.date: 06/26/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 0RYCC9
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA10:bd06/26/2014:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn0RYCC9:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7440
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.1+15.10.20150805-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.6.3-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.6.3-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu5
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Fri Sep 4 11:10:45 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 4413
vendor AUO
xserver.version: 2:1.17.2-1ubuntu5
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