Hi Christopher,

I'll check if I'm able to update, it's a business notebook where I have
limited access. I have to check what's possible there.

What I tried is the latest stable mainline kernel 4.6.3 which improves
the situation significantly. At least the NB doesn't crash any more
putting it back to the docking station.

The mainline kernel doesn't support Docker (AUFS missing) which makes it
problematic for me.

I keep you posted
                Haug


Am 03.07.2016 um 00:59 schrieb Christopher M. Penalver:
> Haug Bürger, 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-
> T450s?linkTrack=GPS%253ABody_Search%2BProducts&tabName=&beta=false an
> update to your computer's buggy, insecure, and outdated BIOS is
> available (1.24). When you update to this following
> https://help.ubuntu.com/community/BIOSUpdate how does this improve the
> situation?
> 
> 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.
> 
> Also, 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 help.
> 
> ** Tags added: bios-outdated-1.24
> 
> ** Changed in: xorg (Ubuntu)
>    Importance: Medium => Low
> 
> ** Changed in: xorg (Ubuntu)
>        Status: Confirmed => Incomplete
>

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1587749

Title:
  random 1-2s black screen

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  I have a Lenovo T450s with docking station and 2 display port monitors
  on it.

  I experience black screens for about a second. Usually one of the
  external monitors only. One external display turns black and comes
  back after 1 or 2 seconds. This happens >10 times a day and is really
  annoying.

  My colleague experiencing the same issue, also using Ubuntu 16.04.
  Same hardware.

  At home I have a similar issue, also with Intel motherboard graphics.
  Different hardware.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu3
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  .tmp.unity_support_test.0:
   
  ApportVersion: 2.20.1-0ubuntu2.1
  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: Wed Jun  1 09:14:00 2016
  DistUpgraded: 2016-04-25 11:02:09,877 DEBUG icon theme changed, re-reading
  DistroCodename: xenial
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 5.0.18, 4.4.0-22-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) 
(prog-if 00 [VGA controller])
     Subsystem: Lenovo Broadwell-U Integrated Graphics [17aa:5036]
  InstallationDate: Installed on 2015-11-06 (207 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: LENOVO 20BWS2YL00
  ProcEnviron:
   LANGUAGE=de_DE
   TERM=xterm
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-generic.efi.signed 
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to xenial on 2016-04-25 (36 days ago)
  dmi.bios.date: 07/08/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JBET51WW (1.16 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BWS2YL00
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrJBET51WW(1.16):bd07/08/2015:svnLENOVO:pn20BWS2YL00:pvrThinkPadT450s:rvnLENOVO:rn20BWS2YL00:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20BWS2YL00
  dmi.product.version: ThinkPad T450s
  dmi.sys.vendor: LENOVO
  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 2:1.18.3-1ubuntu2.2
  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: Wed Jun  1 07:58:12 2016
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4925 
   vendor                                     AUO
  xserver.version: 2:1.18.3-1ubuntu2

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