Denes: it is entirely possible that Qt excercises different parts of the driver than Gtk+ does, and therefore the chance of crashes may be different.
It is also true that the crashes are very irregular: sometimes I get three crashes in one day, sometimes I get two consecutive crash-free weeks, without any changes in the configuration. -- [dapper] xrandr freezes the system (radeon, MergedFB) https://launchpad.net/bugs/47775 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs