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[Bug 1492494] Re: When changing to Ultra HD screen flickers

 

Kai Mast, thank you for reporting this and helping make Ubuntu better.
As per http://support.lenovo.com/us/en/products/laptops-and-
netbooks/thinkpad-t-series-laptops/thinkpad-t440s an update to your
computer's buggy and outdated BIOS is available (2.34). If you update to
this following https://help.ubuntu.com/community/BIOSUpdate does it
change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

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, and the
information above is provided, then please mark this report Status New.
Otherwise, please mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-2.34

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Importance: Undecided => Low

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: New => Incomplete

-- 
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https://bugs.launchpad.net/bugs/1492494

Title:
  When changing to Ultra HD screen flickers

Status in xserver-xorg-video-intel package in Ubuntu:
  Incomplete

Bug description:
  After changing from a lower resolution to 4k bottom left of the screen
  looks fine everything else flickers. When I restart X11 the whole
  screen looks perfect.

  Seems like a problem with mode setting and/or MST?

  I am using a lenovo thinkpad T440s with a dockingstation (but also
  seems to happen when not connection through the docking station).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu2
  ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
  Uname: Linux 4.1.0-3-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 19:04:49 2015
  DistUpgraded: Fresh install
  DistroCodename: wily
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:220c]
  InstallationDate: Installed on 2014-11-20 (288 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 20AQS00500
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.1.0-3-generic root=/dev/mapper/ubuntu--vg-root ro console=tty1 console=ttyS0 panic=-1
  SourcePackage: xserver-xorg-video-intel
  SystemImageInfo:
   current build number: 0
   device name: 
   channel: daily
   last update: 2015-07-01 14:58:02
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/20/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GJET80WW (2.30 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20AQS00500
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGJET80WW(2.30):bd10/20/2014:svnLENOVO:pn20AQS00500:pvrThinkPadT440s:rvnLENOVO:rn20AQS00500:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20AQS00500
  dmi.product.version: ThinkPad T440s
  dmi.sys.vendor: LENOVO
  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 19:03:28 2015
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               12350 
   vendor                                     AUO
  xserver.version: 2:1.17.2-1ubuntu5

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