window jumps partly to another workspace

Bug #770155 reported by Achim on 2011-04-25
This bug affects 3 people
Affects Status Importance Assigned to Milestone
compiz (Ubuntu)
Sam Spilsbury

Bug Description

Binary package hint: compiz

I have two windows aligned side by side on workspace "3".
If I am on workspace "1" and try to switch to one of these windows by clicking on the launcher icon the window jumps partly on workspace "1", instead of switching to workspace "3".

I have a video attached that demonstrates the problem very well I think.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: compiz 1:0.9.4+bzr20110415-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,move,snap,compiztoolbox,regex,place,grid,resize,gnomecompat,session,imgpng,vpswitch,mousepoll,animation,workarounds,wall,unitymtgrabhandles,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
 status: disconnected
 enabled: disabled
 dpms: Off
 status: connected
 enabled: enabled
 dpms: Off
 modes: 1920x1080 1920x1080 1680x1050 1400x1050 1600x900 1280x1024 1280x1024 1440x900 1280x960 1280x800 1152x864 1280x720 1280x720 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 720x576 720x480 640x480 640x480 640x480 640x480 720x400
 status: disconnected
 enabled: disabled
 dpms: Off
Date: Mon Apr 25 10:20:35 2011
DistUpgraded: Log time: 2011-03-18 14:25:17.020762
DistroCodename: natty
DistroVariant: ubuntu
 Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e22] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. Device [1462:7521]
   Subsystem: Micro-Star International Co., Ltd. Device [1462:7521]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110318)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110318)
PackageArchitecture: all
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=9bf80bd3-a330-4d0b-b199-0467bb403d8b ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.42-generic
Renderer: Unknown
SourcePackage: compiz
UpgradeStatus: Upgraded to natty on 2011-04-08 (16 days ago) 03/30/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V4.6
dmi.board.asset.tag: To Be Filled By O.E.M. G45M Digital (MS-7521)
dmi.board.version: 2.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.version: 2.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV4.6:bd03/30/2010:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7521:pvr2.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rnG45MDigital(MS-7521):rvr2.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr2.0: MS-7521
dmi.product.version: 2.0
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

Achim (ach1m) wrote :
Richard Senior (r-senior) wrote :

I can also confirm this. I think it's only started happening recently (post final release) but I'm not 100% on that.

Steps to duplicate, starting with a clean desktop:

1. Open a window on workspace top-left
2. Switch to workspace top-right
3. Open a window and move it to bottom-right corner so it snaps
4. Switch between the two windows using launcher icons

The problem only happens for me if in step 3, the window is snapped to the edge of the screen and not maximised. It does not happen if the window is just very close to the edge of the workspace.

It also happens if Super-W is used to show all windows and the window is focused. The key seems to be focusing to a window on another desktop where that window is snapped right.

There is a slight difference in behaviour if the launcher is set to hide in some way or set to never hide. In the case of never hide, the window that is snapped right moves when switched to so that it overlaps another workspace. In the case of hide, the window does not seem to move but switching stops working.

Richard Senior (r-senior) wrote :

Having observed this for a while now, it seems to only affect windows that are snapped to the extreme right of the workspace grid, i.e. workspaces top-right and bottom-right in a 2x2 grid. Following on from the last paragraph of my comment above, I'm guessing that the space taken up by the launcher is not being taken into account in the coordinates of windows. When a window does overlap another workspace, it looks to be exactly the width of the launcher.

Achim (ach1m) on 2011-05-13
Changed in compiz (Ubuntu):
status: New → Confirmed
Achim (ach1m) wrote :

This problem is still present in Oneiric.

Installed: 1:
Candidate: 1:
Version table:
*** 1: 0
500 oneiric/main i386 Packages
100 /var/lib/dpkg/status

Installed: 4.12.0-0ubuntu1
Candidate: 4.12.0-0ubuntu1
Version table:
*** 4.12.0-0ubuntu1 0
500 oneiric/main i386 Packages
100 /var/lib/dpkg/status

Changed in compiz (Ubuntu):
assignee: nobody → Sam Spilsbury (smspillaz)
Achim (ach1m) wrote :

I can confirm that the problem is also part of Precise beta1. I also have the feeling it got worse.

  Installiert: 5.4.0-0ubuntu2
  Kandidat: 5.4.0-0ubuntu2
 *** 5.4.0-0ubuntu2 0
        500 precise/main i386 Packages
        100 /var/lib/dpkg/status
  Installiert: 1:
  Kandidat: 1:
 *** 1: 0
        500 precise/main i386 Packages
        100 /var/lib/dpkg/status

Richard Senior (r-senior) wrote :

Just tested this in Precise Beta 2 and can confirm that the problem still exists.

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