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Message #158444
[Bug 1537443] Re: flickering of screen
ubuntufan, thank you for reporting this and helping make Ubuntu better.
As per http://support.lenovo.com/us/en/products/Desktops-and-all-in-
ones/ThinkCentre-A-Series-
desktops/ThinkCentre-A52?linkTrack=Homepage:Body_Search%20Products an
update to your computer's buggy and outdated BIOS is available
(2HKT14A). If you update to this following
https://help.ubuntu.com/community/BIOSUpdate does it change anything?
For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.
Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.
Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement or not.
3) Please mark this report Status New. If it's not reproducible, please mark this as Invalid.
Thank you for your understanding.
** Tags added: 2hkt14a bios-outdated-
** Changed in: xorg (Ubuntu)
Importance: Undecided => Low
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1537443
Title:
flickering of screen
Status in xorg package in Ubuntu:
Incomplete
Bug description:
There is sudden freeze of keyboard and mouse followed by flickering of
led screen, I have found a work around by pressing ctlrl+alt+del
resulting in opening of restart and shut down dialogue box. Most of
the time the flickering stops without restarting the computer but some
times I have to force restart the computer. I am using Ubuntu since
2008 and the problem started after upgrading from 15.04 to 15.10,it
still persists after a clean reinstall and complete update yesterday.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
Uname: Linux 4.2.0-27-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.19.1-0ubuntu5
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
Date: Sun Jan 24 10:17:59 2016
DistUpgraded: Fresh install
DistroCodename: wily
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:1005]
InstallationDate: Installed on 2016-01-23 (0 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=f1918e0a-b847-4f36-a146-1a891057eca7 ro quiet splash vt.handoff=7
SourcePackage: xorg
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/08/2006
dmi.bios.vendor: LENOVO
dmi.bios.version: 2HKT13AUS
dmi.board.name: LENOVO
dmi.chassis.vendor: LENOVO
dmi.modalias: dmi:bvnLENOVO:bvr2HKT13AUS:bd09/08/2006:svnLENOVO:pn8298D15:pvrThinkCentreA52:rvnLENOVO:rnLENOVO:rvr:cvnLENOVO:ct4:cvr:
dmi.product.name: 8298D15
dmi.product.version: ThinkCentre A52
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12.2+15.10.20151202-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
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+git20150808-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Sun Jan 24 10:11:14 2016
xserver.configfile: default
xserver.devices:
input Power Button KEYBOARD, id 6
input Power Button KEYBOARD, id 7
input USB USB Keykoard KEYBOARD, id 8
input USB USB Keykoard KEYBOARD, id 9
input SIGMACHIP Usb Mouse MOUSE, id 10
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
xserver.version: 2:1.17.2-1ubuntu9.1
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References