Comment 9 for bug 31527

I can confirm this (Asus A7V133 and HIS Radeon 9250). gl-117 causes a hang within a few seconds, and some OpenGL screensavers as well (they shouldn't be randomly chosen on Radeons by the screensaver package, until this bug is fixed). Disabling dri removes the hangs, but 3D is very slow, about 3fps in gl-117. Setting the BusType option to PCI in xorg.conf also seems to avoid the hangs, but 3D is slow, too - about 6fps in gl-117.

It looks like the problem is still in the current X.org: https://bugs.freedesktop.org/show_bug.cgi?id=5449 - the good news is that they are still trying to fix it. If the fix enters X.org CVS after Dapper release, will it become available as a Dapper update, evn if it's not, technically speaking, a security issue?