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[Launchpad Bug Tracker <269904@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package compiz -
1:0.9.11.3+14.04.20150122-0ubuntu1

---------------
compiz (1:0.9.11.3+14.04.20150122-0ubuntu1) trusty; urgency=medium

  [ James Jones ]
  * Added support for GL_EXT_x11_sync_object OpenGL extension for Nvidia
    based GPUs to avoid screen refresh issues. (LP: #269904)

  [ Kyle Brenneman ]
  * Added support for GL_EXT_x11_sync_object OpenGL extension for Nvidia
    based GPUs to avoid screen refresh issues. (LP: #269904)

  [ Viktor A. Danilov ]
  * Added support for GL_EXT_x11_sync_object OpenGL extension for Nvidia
    based GPUs to avoid screen refresh issues. (LP: #269904)

  [ Chris Townsend ]
  * Added support for GL_EXT_x11_sync_object OpenGL extension for Nvidia
    based GPUs to avoid screen refresh issues. (LP: #269904)

  [ Stephen M. Webb ]
  * Added support for GL_EXT_x11_sync_object OpenGL extension for Nvidia
    based GPUs to avoid screen refresh issues. (LP: #269904)

  [ Michael Thayer ]
  * use correct screen extents for multi-monitor positioning of
    fullscreen windows (lp: #1353675) (LP: #1353675)
 -- Ubuntu daily release <ps-jenkins@xxxxxxxxxxxxxxxxxxx>   Thu, 22 Jan 2015 14:51:56 +0000

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

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https://bugs.launchpad.net/bugs/269904

Title:
  Screen refresh problems with nvidia cards

Status in Compiz:
  Fix Released
Status in Compiz 0.9.11 series:
  In Progress
Status in Compiz Core:
  New
Status in Compiz Core 0.9.8 series:
  New
Status in compiz package in Ubuntu:
  Fix Released
Status in compiz-fusion-plugins-main package in Ubuntu:
  Fix Released
Status in compiz-plugins-main package in Ubuntu:
  Fix Released
Status in compiz source package in Precise:
  New
Status in compiz-plugins-main source package in Precise:
  Confirmed
Status in compiz source package in Trusty:
  Fix Released
Status in compiz-plugins-main source package in Trusty:
  Invalid
Status in compiz source package in Intrepid:
  Fix Released
Status in compiz-plugins-main source package in Intrepid:
  Won't Fix
Status in compiz-fusion-plugins-main package in Debian:
  Fix Released

Bug description:
  [Impact]

  Users of Nvidia gfx using the proprietary driver may see screen
  corruption during certain operations.

  [Test Case]

  * Install an Nvidia graphics adapter and the proprietary driver.
  * Observe the graphics corrupt.
  * Install the version of Compiz with this fix.
  * Observe corruption is gone.

  [Regression Potential]

  The patch for this was provided by Nvidia.  There could be some corner
  cases users hit that may cause other issues.  That said, enough
  testing has been done to confidently say that the gains provided by
  this fix far outweigh any corner cases.

  -----------------------

  Original Description:

  == Proposed compiz-fusion-plugins-main patch ==
  See comment 234 by Anders Kaseorg and attached compiz-fusion-plugins-main_0.8.2-0ubuntu2.debdiff.

  == Original report ==
  Binary package hint: compiz

  I'm using latest compiz on intrepid.

  Since jockey-gtk does not work on my box (I already filed a bug), I
  manually installed nvidia-glx-177 and added the "driver → nvidia" line
  to xorg.conf.

  Now I seem to be having some screen refresh problems when using
  compiz: parts of the screen are refreshed, but others aren't. That
  means nautilus doesn't show files or folders until I move the cursor
  over them, firefox doesn't show webpages properly until I scroll down,
  and so on.

  Please, tell me if there is any additional info I can provide to find
  out the cause.

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