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? cheers! .pltk. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
