Windows of non gtk apps are flickering, and automaximised windows get a corrupted view with CSD enabled

[Nicolas DERIVE]

Windows of non-gtk apps (like Firefox, Thunderbird, Openoffice...) are flickering and can't be kept maximised (and lead to declaration error in Metacity, a bug that apport can't report) and windows which are auto maximised (example of chromium when you click a changelog link in update manager) got a spurious and bad looking (see screenshot). I think it's linked with CSD activation in GTK, because it didn't occur before.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: libgtk2.0-0 2.21.0-1ubuntu2
ProcVersionSignature: Ubuntu 2.6.34-3.10-generic 2.6.34
Uname: Linux 2.6.34-3-generic i686
Architecture: i386
CheckboxSubmission: c4273c0f4f2b8d26cd6bf31cadfd2912
CheckboxSystem: a871981cb5bdf4d6ebd55be46becf77e
Date: Mon May 24 11:37:22 2010
EcryptfsInUse: Yes
ProcEnviron:
 SHELL=/bin/bash
 LANG=fr_FR.UTF-8
 LANGUAGE=fr_FR:fr:en_GB:en
SourcePackage: gtk+2.0

[Nicolas DERIVE (kalon33)]

@seb128: low because there is time to fix it, or because these apps will me modified ?

[paulvas (paulvas)]

Is there any fix/workaround?