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[Bug 815996] Re: Desktop occasionally freezes/locks up when switching workspaces


I have the same problem in 14.04. As mentioned at
it is possible to reproduce the problem by dragging around windows in the workspace switcher, grabbing them by the title bar (especially, it seems, by the bubble buttons in the title bar), and I can regain control by pressing super+S, exiting the workspace switcher.

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  Desktop occasionally freezes/locks up when switching workspaces

Status in Compiz:
Status in Compiz Main Plugins:
Status in Compiz Desktop Wall Plugin:
Status in compiz package in Ubuntu:
Status in compiz-plugins-main package in Ubuntu:

Bug description:
  I'm assuming the issue is related to Compiz, but I'm not 100% sure.
  When I'm switching workspaces, it occasionally locks up (becoming more
  frequent). Most of the time, I'm going from the current one down
  (Ctrl+Alt+Down Arrow), and it freezes mid slide. Typically, I'm able
  to correct things by backing out to a terminal then returning
  (Ctrl+Alt+F1, pause, Alt+F7), but sometimes when I return the dual
  screen setup acts as one large screen (windows are stretched to the
  full width of both screens) and many of the windows collect on the
  first workspace.

  Ubuntu 11.04 (Classic)
  All packages up-to-date.

  If there are any logs/etc that would be helpful, let me know.
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,grid,imgpng,snap,compiztoolbox,resize,place,regex,move,gnomecompat,animation,vpswitch,mousepoll,workarounds,session,expo,wall,ezoom,fade,switcher,scale]
  DistroCodename: natty
  DistroRelease: Ubuntu 11.04
  DistroVariant: ubuntu
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  InstallationMedia_: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  NonfreeKernelModules: nvidia
  Package: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2
  PackageArchitecture: all
   PATH=(custom, user)
  ProcVersionSignature: Ubuntu 2.6.38-10.46-generic
  ProcVersionSignature_: Ubuntu 2.6.38-10.46-generic
  Tags:  natty natty ubuntu
  Uname: Linux 2.6.38-10-generic x86_64
  UnreportableReason: Please work this issue through technical support channels first.
  UpgradeStatus: Upgraded to natty on 2011-05-02 (84 days ago)
  UserGroups: adm admin audio cdrom dialout dip fuse lpadmin netdev plugdev sambashare

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