Opening picard makes Xorg use 100% cpu (possible python-qt4 issue)

[cake]

Opening picard while in unity causes extreme CPU activity until coming to a hault. I ran picard in unity-2d which showed the program opening without window decoration and soon after metacity crashes.

This problem also occurs when opening puddletag 0.10.6

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: picard 0.15-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
ApportVersion: 1.22.1-0ubuntu2
Architecture: amd64
Date: Mon Sep 12 10:42:28 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110901)
SourcePackage: picard
UpgradeStatus: No upgrade log present (probably fresh install)

[Mathieu Comandon (strycore)]

I've encounterd this problem for a while now and I suspect a problem with python-qt4, not Picard itself.
As you have mentioned, puddletag as the same problem and also uses python-qt4.

Would you happen to use a Dual Monitor setup with the Nvidia driver ?

[Mathieu Comandon (strycore)]

It seems this bug is not linked to python-qt4 but to qt4 itself. I had some issues with VLC which relies on qt4.
A possible duplicate is bug #805303

[Mathieu Comandon (strycore)]

The workaround in bug #805303 also work on picard.

Install qtconfig-qt4 and change the theme to something that is NOT gtk+ or Default (Cleanlooks is not too ugly). Picard should open without any problems.

Marking this bug as a duplicate since I am now quite sure it's the same one (same error message and all).