compiz team mailing list archive

[Rui Peixoto <1127439@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

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
ProcVersionSignature: Ubuntu 3.5.0-23.35-generic 3.5.7.2
Uname: Linux 3.5.0-23-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
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
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug quantal running-unity

** Description changed:

  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 windows appears on one screen (the other stays black)
+ 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. 
+ * 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
  ProcVersionSignature: Ubuntu 3.5.0-23.35-generic 3.5.7.2
  Uname: Linux 3.5.0-23-generic x86_64
  ApportVersion: 2.6.1-0ubuntu10
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  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
  PackageArchitecture: all
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: compiz
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1127439

Title:
  Unlocking screen on dual monitor setup causes black screen

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