Compiz blur plugin mirrors transparent backgrounds vertically

[max ulidtko]

The Compiz "blur" plugin in 11.10 seems to have been changed in a way so to use vertically mirrored screen image to produce the blurred image.

This affects window shadows, see screenshots at http://askubuntu.com/questions/68926/ugly-shadows-around-applications

This also happens with some windows which employ compositing to draw transparent backgrounds. When "alpha_blur" setting of the blur plugin is enabled, this leads to mirrored background.

The mirroring doesn't occur when blur plugin is disabled. The mirroring didn't ever happen before 11.10.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: compizconfig-settings-manager 0.9.5.92-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Mon Oct 31 15:06:58 2011
ExecutablePath: /usr/bin/ccsm
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
SourcePackage: compizconfig-settings-manager
UpgradeStatus: Upgraded to oneiric on 2011-10-22 (8 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[dino99 (9d9)]

That version has reached EOL since a while, so it will not receive update. If that issue still exist, report again using ubuntu-bug.