Unlocking screen on dual monitor setup causes black screen
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
compiz (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
After unlock the screen on a dual monitor setup both screens stay completely black, and I can't access the desktop (mouse cursor is visible and I can move it). This only happens when using an external monitor (connected through HDMI).
Expected behavior: after providing the password to the unlock screen, I should access the desktop;
What happens: both screens stay black and I can't access the desktop.
How to reproduce:
1- Having a laptop with an external monitor connected (no mirroring)
2- Lock screen
3- Wait > 5 seconds
4- Touch the mouse/keyboard: the unlocking window appears on one screen (the other stays black)
5- After typing the password both screens remain completely black
Tests in various desktop managers:
* Unity: screens stay black after unlocking;
* Cinnamon: works as expected (unlocking gets you to desktop);
* Gnome classic (fallback): same behavior as Unity;
* Gnome classic (no effects): works as expected.
I have also tested with xscreensaver on Unity and the screens stays black. So the problem should be with Compiz.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: compiz 1:0.9.8.6-0ubuntu1
ProcVersionSign
Uname: Linux 3.5.0-23-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
CompizPlugins: No value set for `/apps/
Date: Sat Feb 16 18:59:51 2013
InstallationDate: Installed on 2012-12-03 (74 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
PackageArchitec
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)
tags: | added: compiz-0.9 |
Status changed to 'Confirmed' because the bug affects multiple users.