Scrolling in one desktop "touches" apps in another desktop

[Pedro Côrte-Real]

I've found a bug in how unity/compiz handles multiple desktops. Here are the steps to reproduce it.

1) Setup four virtual desktops in a 2x2 configuration
2) On the top-left desktop setup a terminal window maximized to the left side (by dragging it to the left edge so it uses the left half of the screen)
3) On the top-right desktop open up firefox and maximize it
4) Navigate to a page that needs scrolling
5) Try to scroll by moving the scrollbar on the right of the screen

What happens is that the mouse pointer gets grabbed by the resize target of the terminal window on the top-left screen.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.1+14.04.20140513-0ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Sun Jun 29 09:52:53 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21fa]
InstallationDate: Installed on 2014-05-03 (56 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO 23252QG
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic root=UUID=9018e190-86bb-4fbf-a348-d47ea769640f ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/24/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: G2ET31WW (1.11 )
dmi.board.asset.tag: Not Available
dmi.board.name: 23252QG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG2ET31WW(1.11):bd05/24/2012:svnLENOVO:pn23252QG:pvrThinkPadX230:rvnLENOVO:rn23252QG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 23252QG
dmi.product.version: ThinkPad X230
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11+14.04.20140423-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sat Jun 28 00:18:03 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 728
 vendor LGD
xserver.version: 2:1.15.1-0ubuntu2

[Andrea Azzarone (azzar1)]

Seems fine here. Can you still reproduce this?

[Pedro Côrte-Real (pedrocr)]

I can't reproduce it with these exact steps anymore but the bug is still there. Here are simpler steps to reproduce it:

1) Setup four virtual desktops in a 2x2 configuration
2) On the top-left desktop setup a terminal window maximized to the left side (by dragging it to the left edge so it uses the left half of the screen)
3) Move to the top-right desktop
4) Move the mouse to the right edge and see that you can grab the left edge of the terminal

The same exact thing happens with the bottom-left and bottom-right desktops. It's as if the desktop is wrapping around from the right edge of the right desktop to the left edge of the left desktop.

[Andrea Azzarone (azzar1)]

I cannot reproduce here. Do you have cube plugin activated?

[Pedro Côrte-Real (pedrocr)]

I don't think I've changed much from the default install. I can share whatever config files are relevant if it helps.

[Launchpad Janitor (janitor)]

[Expired for Unity because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

[Pedro Côrte-Real (pedrocr)]

Wow, so bugs that no one has figured out how to fix just expire now? That's new. I understand when incomplete bugs get closed but this?