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[Sameer Morar <smorar@xxxxxxxxx>]

Public bug reported:

Some UI elements from wine and fvwm don't render correctly when using
the Intel driver. This can be observed in screenshots shown in the
following links:

https://bugs.freedesktop.org/show_bug.cgi?id=28798
https://bugs.freedesktop.org/show_bug.cgi?id=29401
http://askubuntu.com/questions/29642/black-or-corrupt-ui-artifacts-under-wine/

These issues have been attributed to errors in UXA utilising the 3D pipeline for core rendering.
Upstream has disabled this to resolve this issue for now.

I have applied their patch (commit: 855ced5a4eb67e287001ae22cb6489639c548cfa) to test this fix, which works for me here:
https://launchpad.net/~smorar/+archive/bugfixes

** Affects: xserver-xorg-video-intel
     Importance: Unknown
         Status: Unknown

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
     Assignee: Sameer Morar (smorar)
         Status: New

** Changed in: xserver-xorg-video-intel (Ubuntu)
     Assignee: (unassigned) => Sameer Morar (smorar)

** Bug watch added: freedesktop.org Bugzilla #28798
   http://bugs.freedesktop.org/show_bug.cgi?id=28798

** Also affects: xserver-xorg-video-intel via
   http://bugs.freedesktop.org/show_bug.cgi?id=28798
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/803012

Title:
  Intel driver incorrectly renders some UI elements

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