maximized windows cover the panel with dual head

[Alistair Buxton]

To reproduce:

1. Move a window onto second monitor.
2. Maximize it.

The window now covers the top panel and the menu bar and controls are inaccessible. At this point it is still recoverable by pressing alt+spacebar. But:

3. Hold alt and drag the window onto the primary monitor.
4. Press alt+spacebar.

At this point it is no longer possible to unmaximize the window, even if you move it back to the previous monitor. If you do this with an application which remembers it's window position, such as libreoffice spreadsheet, it is now impossible to access the menus of the application - forever (until this bug is fixed). All you can do is press alt+f4 to quit, or rely on the toolbars.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity-2d 4.12.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Wed Nov 16 03:19:07 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
PackageArchitecture: all
SourcePackage: unity-2d
UpgradeStatus: Upgraded to oneiric on 2011-10-09 (37 days ago)

[Gerry Boland (gerboland)]

Hi Alistair,
I use MM setup every day and cannot reproduce this. Can you confirm that in the Displays settings, that the top of both monitors are exactly lined up?
-G

[Alistair Buxton (a-j-buxton)]

The tops of the monitors do NOT line up.

[Gerry Boland (gerboland)]

Hey Alistair,
ok, can you align them please and see if this problem still occurs. I'm not saying that this isn't a bug, but I'd like to see if this fixes your issue.
Thanks
-G

[Alistair Buxton (a-j-buxton)]

Aligning the displays makes the problem go away.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.