The dock is simply not connected to the igfx. This is a hybrid laptop
and you need both GPUs to drive all outputs.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/885400
Title:
External Displays Not Working for VGA & DVI when in Minidock
Status in “xserver-xorg-video-intel” package in Ubuntu:
Invalid
Bug description:
Using Lenovo T420, Ubuntu 11.10, 64bit and Lenovo MiniDock station.
The VGA works when not in the docking station, connected directly to
the laptop, but neither the VGA or the DVI works when laptop is
connected to the docking station. The laptop has an integrated VGA
port for an external monitor. The MiniDock has both a VGA & DVI port
for an external monitor.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-13.21-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
.tmp.unity.support.test.1:
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
CompizPlugins: [core,composite,opengl,wobbly,cube,rotate]
CompositorRunning: None
Date: Wed Nov 2 14:40:45 2011
DistUpgraded: Log time: 2011-11-02 11:00:18.877258
DistroCodename: oneiric
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:21d3]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: LENOVO 4170CTO
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic
root=UUID=8cedee97-0da9-412e-9e4b-5353142d6b3e ro quiet splash vt.handoff=7
SourcePackage: xorg
UnitySupportTest:
Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with
exit code 1: Xlib: extension "GLX" missing on display ":0".
Xlib: extension "GLX" missing on display ":0".
Xlib: extension "GLX" missing on display ":0".
Error: unable to create the OpenGL context
UpgradeStatus: Upgraded to oneiric on 2011-11-02 (0 days ago)
XorgConf:
Section "Device"
Identifier "Default Device"
Option "NoLogo" "True"
EndSection
dmi.bios.date: 05/23/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8CET44WW (1.24 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4170CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8CET44WW(1.24):bd05/23/2011:svnLENOVO:pn4170CTO:pvrThinkPadT420s:rvnLENOVO:rn4170CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4170CTO
dmi.product.version: ThinkPad T420s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu5
version.ia32-libs: ia32-libs 20090808ubuntu26
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20110411+8378443-1
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