configuration of external monitor on laptop with DisplayPort causes lvds to remain black
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
gnome-control-center (Ubuntu) |
Fix Released
|
Low
|
Unassigned | ||
xorg-server (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
During test of Oneiric Beta 1 on my HP-G62 laptop testcase: http://
After powering on my laptop with an external monitor attached, when I unclick the duplicate check box and work only with the external monitor, when you try to turn the laptop monitor on again it just remains black and only the external one works, can't get it back working, it works only if you check the duplicate check box again, but you can't switch off the external monitor and work with the laptop one if the external one is attached.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-control-
ProcVersionSign
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
Date: Sun Sep 4 14:40:31 2011
ExecutablePath: /usr/bin/
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
ProcEnviron:
PATH=(custom, no user)
LANG=it_IT.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-control-
UpgradeStatus: No upgrade log present (probably fresh install)
summary: |
- configuration of external monitor on laptop does not work properly + configuration of external monitor on laptop causes lvds to remain black |
Turn on display debug information by running sudo xdiagnose, clicking the first checkbox, apply, then reboot.
Now collect dmesg output, then reproduce the problem and collect a second dmesg. You want the data that's in the second dmesg but not the first.
Possibly this bug is related to bug #737891