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[Bug 729979] Re: [nvidia] Windows appear blank white


Hello pablomme, or anyone else affected,

Accepted compiz into trusty-proposed. The package will build now and be
available at
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in

** Changed in: compiz (Ubuntu Trusty)
       Status: New => Fix Committed

** Tags added: verification-needed

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  [nvidia] Windows appear blank white

Status in Compiz:
  Fix Committed
Status in Compiz 0.9.11 series:
  In Progress
Status in compiz package in Ubuntu:
  Fix Released
Status in compiz source package in Precise:
Status in compiz source package in Trusty:
  Fix Committed

Bug description:
  [ 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.


  [ 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

  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, black, or transparent depending on the Ubuntu version

  [ Regression Potential ]

  It is unlikely this change has the potential to introduce new

  [ 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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