Application appears on different screen after wake up from suspend in multi-screen setup

Bug #997798 reported by Bruno Girin on 2012-05-10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
unity (Ubuntu)

Bug Description

When having an external screen connected to my laptop, maximised application windows sometimes appear on a different screen when waking up from suspend than they were prior to suspend.

Steps to reproduce:
1. Connect an external screen.
2. Start an application, e.g. Thunderbird and ensure it is open and maximised on the laptop's screen.
3. Suspend the laptop e.g. by closing the lid.
4. Wake up from suspend.

Expected behaviour:
The application window should appear on the same screen and in the same place as it was prior to suspend.

Actual behaviour:
The application window appears on the external screen on waking up from suspend.
Un-maximising the window revert it back to the laptop's screen and maximising it again keeps it on the laptop's screen rather than the external one.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.10.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Thu May 10 21:57:50 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
 PATH=(custom, no user)
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2012-02-11 (89 days ago)

Bruno Girin (brunogirin) wrote :
Daniel van Vugt (vanvugt) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 947025, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

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