I have a Emagic emi26 usb 1.1 sound card on a 2.6.12.2 kernel I built myself. OSS emulation and ALSA drivers play back sound but jackd using the ALSA drivers will not start. The kernel complains about a broken pipe for the device. I have read the list archives about suggestions to solve this problem. Here the configuration and the steps I took: Debian stable with realtime-lsm built against custom kernel alsa version 1.0.8 jackd version 0.99.0 disabled USB bandwidth control disabled dynamic device assignment reloaded the snd-usb-audio module with an option of nrpacks=1 Any advice would be appriciated. From the list archives, other people are using this device with jackd. -lee