Public bug reported:
My W540 can not detect my external screen when I arrive at work after my
laptop have been used at home with no external screen and suspended on
the way to work. Sometimes it does detect it. Sometimes I can un-dock
and dock again and it works. Sometimes it never works when I am
redocking.
After reboot it works fine.
It worked with Ubuntu 14.04 on the same HW.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg (not installed)
ProcVersionSignature: Ubuntu 4.4.0-75.96-generic 4.4.59
Uname: Linux 4.4.0-75-generic x86_64
.tmp.unity_support_test.0:
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CompizPlugins:
[core,bailer,detection,composite,opengl,compiztoolbox,decor,mousepoll,gnomecompat,imgpng,move,regex,place,resize,wall,animation,snap,grid,unitymtgrabhandles,vpswitch,workarounds,session,fade,expo,ezoom,scale,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Wed May 3 09:14:10 2017
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 5.0.32, 4.4.0-70-generic, x86_64: installed
virtualbox, 5.0.32, 4.4.0-71-generic, x86_64: installed
virtualbox, 5.0.32, 4.4.0-72-generic, x86_64: installed
virtualbox, 5.0.32, 4.4.0-75-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 4th Gen Core Processor Integrated Graphics Controller
[8086:0416] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Lenovo 4th Gen Core Processor Integrated Graphics Controller
[17aa:221e]
NVIDIA Corporation GK107GLM [Quadro K1100M] [10de:0ff6] (rev a1) (prog-if 00
[VGA controller])
Subsystem: Lenovo GK107GLM [Quadro K1100M] [17aa:221e]
InstallationDate: Installed on 2017-02-16 (75 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: LENOVO 20BHS0BM00
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-75-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/12/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: GNET70WW (2.18 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BHS0BM00
dmi.board.vendor: LENOVO
dmi.board.version: 0B98401 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrGNET70WW(2.18):bd01/12/2015:svnLENOVO:pn20BHS0BM00:pvrThinkPadW540:rvnLENOVO:rn20BHS0BM00:rvr0B98401WIN:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20BHS0BM00
dmi.product.version: ThinkPad W540
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.70-1~ubuntu16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.6-0ubuntu0.16.04.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.6-0ubuntu0.16.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.2
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+git20160325-1ubuntu1.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Wed May 3 09:11:54 2017
xserver.configfile: default
xserver.errors:
Failed to load module "nvidia" (module does not exist, 0)
Failed to load module "nvidia" (module does not exist, 0)
NOUVEAU(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 38562
vendor MEI
xserver.version: 2:1.18.4-0ubuntu0.2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial
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https://bugs.launchpad.net/bugs/1687870
Title:
Can not detect external screen when docking laptop
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