I have the same problem(choppy sound + wifi restarts) on my Thinkpad T60 w/ ATI x1400. There were many "hpet increased min_delta_ns" messages in dmesg's output and decided to try to disable HPET. Adding "hpet=disable" to kernel options seems to mitigate the problem to some extent - i.e. it seems to appear less frequently. After switching to 2D desktop the problem seem to disappear. If the bug is due to some sort of race condition however, it's possible I just got lucky so far ...
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/879790 Title: Sound doesn't play properly after upgrade from 11.04->11.10, also affects 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/879790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs