The patch Aaron is referring to is for Clutter.  We need to figure out
how to fix Compiz for this.  I just began to look at this, but I'm not
very familiar with the code, so I'm not sure if I will get it right.  I
also don't have any Nvidia hardware to test this on, so I may ask you to
help out in testing, if you are so willing:)

Thanks!

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

** Changed in: compiz
   Importance: Undecided => High

** Changed in: compiz (Ubuntu)
   Importance: Undecided => High

** Changed in: compiz
     Assignee: (unassigned) => Christopher Townsend (townsend)

** Changed in: compiz (Ubuntu)
     Assignee: (unassigned) => Christopher Townsend (townsend)

** Changed in: compiz
       Status: New => Confirmed

** Changed in: compiz (Ubuntu)
       Status: New => Confirmed

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to compiz in Ubuntu.
https://bugs.launchpad.net/bugs/1288747

Title:
  [334] Parts of the UI randomly flicker when moving the mouse

Status in Compiz:
  Confirmed
Status in “compiz” package in Ubuntu:
  Confirmed

Bug description:
  Nvidia 334.21 makes the UI jearky, googled and found this on Nvidia
  forums:

  "This looks like a problem caused by the system compositor not
  properly waiting for X rendering to finish before performing OpenGL
  rendering in response. The GL_EXT_x11_sync_object extension was
  designed to solve this problem, but it looks like cogl (the back-end
  library used by GNOME's compositor) doesn't use it yet. "

  more details:
  
https://devtalk.nvidia.com/default/topic/690704/linux/-334-16-parts-of-the-ui-randomly-flicker-when-moving-the-mouse/post/4128101/#4128101

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