[gm45] With external monitor, laptop monitor sometimes turns back on.

Bug #587797 reported by huepfend_schof
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
xserver-xorg-video-intel (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

Binary package hint: xorg

I have an external monitor attached to my laptop through a docking station. I use Ubuntu Lucid Lynx.
I work only with the external monitor and the laptop monitor should be switched off. This can easily be done with gnome-display-properties.
But sometimes (after a reboot or even during normal working), the monitor settings are reset such that the laptop monitor is turned on again. This implicates, that the panel is moving on the laptop screen, which is closed. Without a panel it is hard to run gnome-display-properties to change the display settings again (but I can run it with Alt-F2).
In Ubuntu Karmic, I had no problems. How do I disable this new "feature"?
It is hard to say how to reproduce the problem, because it is not regularly happening. Sometimes after a reboot, sometimes when I start a video, sometimes after a screensaver period, but not always after these actions.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic-pae 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic-pae i686
NonfreeKernelModules: wl
Architecture: i386
CheckboxSubmission: 63f262de0e78838d53ab53e7d87cc43e
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Mon May 31 09:44:26 2010
DkmsStatus:
 bcmwl, 5.60.48.36+bdcom, 2.6.32-21-generic-pae, i686: installed
 bcmwl, 5.60.48.36+bdcom, 2.6.32-22-generic, i686: installed
 bcmwl, 5.60.48.36+bdcom, 2.6.31-20-generic-pae, i686: installed
 bcmwl, 5.60.48.36+bdcom, 2.6.32-22-generic-pae, i686: installed
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: Dell Inc. Latitude E5400
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic-pae root=UUID=0b1a4523-d976-4893-93e9-98d020867118 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 08/11/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A13
dmi.board.name: 0D693C
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA13:bd08/11/2009:svnDellInc.:pnLatitudeE5400:pvr:rvnDellInc.:rn0D693C:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E5400
dmi.sys.vendor: Dell Inc.
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-22-generic-pae

[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
     Subsystem: Dell Device [1028:0262]

Revision history for this message
huepfend_schof (kaweechelchen) wrote :
Bryce Harrington (bryce)
affects: xorg (Ubuntu) → xserver-xorg-video-intel (Ubuntu)
Bryce Harrington (bryce)
Changed in xserver-xorg-video-intel (Ubuntu):
status: New → Confirmed
Stenten (stenten)
tags: added: gm45
summary: - Monitor Settings Keep Changing
+ [gm45] With external monitor, laptop monitor sometimes turns back on.
tags: added: regression-release
Bryce Harrington (bryce)
tags: added: dual-head
Revision history for this message
Jonathan Bower (jonathanbower) wrote :

Got the same problem. regression in Lucid.

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

bugbot (bugbot)
description: updated
Revision history for this message
Chris Wilson (ickle) wrote :

If I understand correctly, this is was an artifact of polling all outputs when a single hotplug event was received. Fixed in raring.

Changed in xserver-xorg-video-intel (Ubuntu):
status: Confirmed → Fix Released
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