Public bug reported:
I'm using an Acer Travelmate 8472TG with EasyPort IV Docking station.
The docking station has a DVI interface that I connect to a DVI display
(no hdmi adapter).
If the integrated NVIDIA graphics card is used (set to "discrete" in
bios) everything works.
If the intel graphics card is used, connecting the display at the DVI
connector (via DVI, no hdmi adapter) triggers xrandr to change screen
resolutions. It displays the correct "available resolutions" but the
display stays black ("no signal" -> standby).
I'm using the current version of ubuntu 11.04. The problem already
existed in 10.10.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: wl
Architecture: i386
CompizPlugins:
[core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,scale,session,unityshell]
CompositorRunning: None
DRM.card0.DP.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
DRM.card0.HDMI.A.1:
status: connected
enabled: enabled
dpms: Off
modes: 1280x1024 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600
640x480 640x480 720x400
edid-base64:
AP///////wAebVhD1U8AAAEOAQPuIht46i7lpFdKnCURUFSlaoAxT0VPYU+BgAEBAQEBAQEBMCoAmFEAKkAwcBMAUg4RAAAeAAAA/QA4Sx5HCwAKICAgICAgAAAA/ABMMTcxMEIgCiAgICAgAAAA/AAgCiAgICAgICAgICAgAKY=
DRM.card0.LVDS.1:
status: connected
enabled: enabled
dpms: On
modes: 1366x768
edid-base64:
AP///////wAGrzwxAAAAAAAUAQOAHxF4CsilnldUkiaZUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWRlAAIzAmFjYANa0QAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTQwWFcwMyBWMSAKAAM=
DRM.card0.VGA.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
Date: Thu Apr 28 12:49:57 2011
DistUpgraded: Log time: 2011-01-21 16:53:14.463334
DistroCodename: natty
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation Core Processor Integrated Graphics Controller [8086:0046]
(rev 18) (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] Device [1025:0414]
nVidia Corporation GT216 [GeForce GT 330M] [10de:0a29] (rev a2) (prog-if 00
[VGA controller])
Subsystem: Acer Incorporated [ALI] Device [1025:0414]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20101201.1)
MachineType: Acer TravelMate8472TG
ProcEnviron:
LANGUAGE=de_DE:de:en_GB:en
PATH=(custom, no user)
LANG=de_DE.utf8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic
root=/dev/mapper/vg--papaya-ubuntu--testing--root ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
Symptom: display
UdevDb: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
UpgradeStatus: Upgraded to natty on 2011-04-22 (5 days ago)
dmi.bios.date: 12/13/2010
dmi.bios.vendor: Phoenix
dmi.bios.version: V1.20
dmi.board.name: BAP40-CP
dmi.board.vendor: Acer
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenix:bvrV1.20:bd12/13/2010:svnAcer:pnTravelMate8472TG:pvrNotApplicable:rvnAcer:rnBAP40-CP:rvrNotApplicable:cvnAcer:ct10:cvrN/A:
dmi.product.name: TravelMate8472TG
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20110107+b795ca6e-0ubuntu7
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: apport-bug i386 natty ubuntu
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https://bugs.launchpad.net/bugs/772283
Title:
display stays black if using DVI output with intel HD graphics
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