compiz team mailing list archive

["Stephen M. Webb" <stephen.webb@xxxxxxxxxxxxx>]

** Description changed:

- Binary package hint: compiz
+ [ Impact ]
  
  When switching focus from one window to another, the target window may
  become blank. See the attached screenshot, where I opened two gnome-
  terminals and clicked on their titlebars alternately - the issue was
  triggered after about 5-10 clicks. I've had this happen on other
  appications too, e.g. software-centre, empathy, etc.
  
  HOW TO REPRODUCE:
+ 
+ [ Test Case ]
+ 
+ Verification requires an nVidia GPU with proprietary drivers.  The
+ problem can not reliably be reproduced at will, only after some time
+ (depending on resident GPU memory and usage) and even then only
+ randomly.
+ 
  1. Minimize a window
  2. Initiate Scale and deactivate it again (press Super+W to show all windows and then press it again to go back to normal)
  3. Click the window icon on the launcher to maximize it again.
- 4. The window contents will be white or black depending on the Ubuntu version
+ 4. The window contents will be white, black, or transparent depending on the Ubuntu version
  
- WORKAROUND:
- Uncheck CCSM -> Ubuntu Unity Plugin -> Switcher -> Show live previews of windows in the Switcher. Side-effect: scale doesn't show minimized windows.
+ [ Regression Potential ]
+ 
+ It is unlikely this change has the potential to introduce new
+ regressions.
+ 
+ [ Other Info ]
+ 
+ Fix was cherry-picked from the Ubuntu "Vivid Vervet" dev relase where it
+ has been in use for some weeks without problem.

-- 
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https://bugs.launchpad.net/bugs/729979

Title:
  [nvidia] Windows appear blank white

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