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[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

Public bug reported:

Vsync is lost and significant tearing occurs after removing a monitor.
Tested with compiz 0.9.9 revision 3521 on radeon.

Test case:
1. Start with one monitor. Verify no tearing occurs when moving windows.
2. Enable two monitors in the Displays dialog. Verify no tearing occurs on either monitor.
3. Disable (turn off) one monitor in the Display dialog so you're left with only one again.
Expected: No tearing occurs when moving windows.
Observed: Tearing occurs and won't go away until compiz is restarted.

** Affects: compiz
     Importance: Medium
         Status: Triaged

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New

** Also affects: compiz (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: xserver-xorg-video-ati (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1088782

Title:
  [radeon] vsync is lost after removing a monitor, resulting in tearing

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