On Thu, 2006-09-07 at 14:05 +0200, Dominic Sacré wrote: > On Thursday, 7. September 2006 04:12, Paul Davis wrote: > > > I'd like to run jack on a rather old laptop (IBM Thinkpad X21, P3 > > > 700MHz). The problem is that I'm getting xruns almost every 30 > > > seconds. That is, not every time, but the interval between two xruns > > > is always an exact multiple of 30 seconds. > > > > CD media detection? power management features? > > Well, actually this seems to be somehow related to power management. If I > boot with acpi=off, I'm not getting these xruns. > As I'd still like to use ACPI on this laptop, is it possible to disable it > just temporarily while jack is running? Or is there some other way to > keep ACPI from interrupting jack? many win32-DAW web forums are full of recommendations to turn of ACPI too. i think you have to do without it for low latency audio, at least on some h/w.