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[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update to your computer's buggy and outdated BIOS is available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** Tags added: 2hkt14a bios-outdated-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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