Strange... I experience those visual locks all the time but since I'm using XFCE4 currently for more than 24 hours doing the same things as with KDE4 (even same applications, e.g. gwenview, dolphin, kopete, krdc, ...) I didn't get a freeze yet.
I'll update once more and switch over to KDE4 again to see if it is solved. This let's me think it has to do with the KDE4 power management stuff (PowerDevil in KDE4) as it is disabled if another power manager is in place (xfce4-power-manager). So if I see the freeze still occurring I'll try if disabling PowerDevil resolves the issue. In that case although the freeze may be triggered by PowerDevil may originate from some lower level. -- System hard locks with 2.6.33 mainline https://bugs.launchpad.net/bugs/535572 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs