Hi, speaking of xruns... I tend to get a lot if I use my laptop on batteries and have the acpid daemon running (sometimes also putting the performance profile down). Now, even when I do not really hear anything from this xruns, the problem usually is that QJackCtl starts to take up so much CPU, that it becomes hard to solve the problem (bad mouse response, etc.). Jack and other audio applications itself looks fine, just QJackCtl gets up to above 90%. I guess it has something to do with QJackCtl trying to inform me in all detail about all these xruns, whereas I would be happy with just the message "a lot of 'em" and much lower CPU-usage from QJackCtl. I don't know whether this behaviour has been reported before (did not check any other emaillists), but it is surely worth solving. sincerely, Marije