On 05/13/2012 03:13 AM, plutek wrote: > From: Karsten Wiese <fzuuzf@xxxxxxxxxxxxxx> > Date: Sat, 12 May 2012 23:18:22 +0200 > >> 2012/5/12 Clemens Ladisch <clemens@xxxxxxxxxx>: >>> plutek wrote: >>>> i've been running AVLinux5.0.3 on a ThinkPad T61p for a while now.... >>>> with an ART USB Dual Tube Pre, i can run Jack at 64 frames, 2 periods >>>> >>>> now i've got a new ThinkPad T520, and if i start jack on USB at 64*2 >>>> i get hundreds of xruns in seconds. >>> >>> Both machines run (I assume) the same software? Then the problem is >>> with the hardware, or its drivers. >>> >>> Please show the output of lspci and the contents of /proc/interrupts. >>> >> >> Thinkwiki says its got a QM67. That does USB 1.1 via the "Rate >> matching hub" and EHCI. >> I guess linux's hub driver is the culprit. > > hmmmm.... shame.... lenovo specs said, of course, "USB 2.0". > mrph. > > any way around this currently? yes, http://lists.linuxaudio.org/pipermail/linux-audio-dev/2010-October/029511.html > cheers! > .pltk. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
