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[Bug 1378188] Re: [GNOME3 Staging PPA] strange shadow rendered where client-side decorations are used

To: gnome3-team@xxxxxxxxxxxxxxxxxxx
From: Brian Murray <brian@xxxxxxxxxx>
Date: Thu, 14 May 2015 22:08:56 -0000
Reply-to: Bug 1378188 <1378188@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Hello Erich, or anyone else affected,

Accepted xserver-xorg-video-intel into utopic-proposed. The package will
build now and be available at https://launchpad.net/ubuntu/+source
/xserver-xorg-video-intel/2:2.99.914-1~exp1ubuntu4.4 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
advance!

** Changed in: xserver-xorg-video-intel (Ubuntu Utopic)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

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https://bugs.launchpad.net/bugs/1378188

Title:
  [GNOME3 Staging PPA] strange shadow rendered where client-side
  decorations are used

Status in xserver-xorg-video-intel package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-intel source package in Utopic:
  Fix Committed

Bug description:
  [Impact]
  The Intel video driver has a bug that can cause to incorrectly draw certain trapezoids. This is visible when using client side decorations in GNOME 3 (see attached screenshots).

  [Test Case]
  Run GNOME 3 with client side decorations on Intel hardware.
  Observed result:
  Shadow under window is missing corners.
  Expected result:
  Shadow looks correct.

  [Regression potential]
  Low. The fix is from upstream and just changes the logic error in the CompositeTrapezoids routine.

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