[LAU] hdsp not happy with recent kernels

greetings! perhaps some of you use RME hdsp hardware. i'm wondering if you're running into issues like mine with recent kernels.... i've got an hdsp multiface hanging off an expresscard adapter in a T520 thinkpad. here's what's going on: hdspmixer locks up soon after starting, saying, "HwDep ioctl failed. Metering stopped" once that has happened, if i try to start jack, i get this: plutek@palnote:~$ jackd -dalsa -D -Phw:0,0 -Chw:0,0 jackdmp 1.9.9 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2012 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK server starting in realtime mode with priority 10 control device hw:0 control device hw:0 audio_reservation_init Acquire audio card Audio0 creating alsa driver ... hw:0,0|hw:0,0|1024|2|48000|0|0|nomon|swmeter|-|32bit control device hw:0 ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode Cannot initialize driver JackServer::Open failed with -1 Failed to open server alternately, if i start jack after a reboot *without* first starting hdspmixer, it runs for a few minutes (variable), then fails thusly: plutek@palnote:~$ jackd -dalsa -D -Phw:0,0 -Chw:0,0 jackdmp 1.9.9 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2012 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK server starting in realtime mode with priority 10 control device hw:0 control device hw:0 audio_reservation_init Acquire audio card Audio0 creating alsa driver ... hw:0,0|hw:0,0|1024|2|48000|0|0|nomon|swmeter|-|32bit control device hw:0 configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods ALSA: final selected sample format for capture: 32bit integer little-endian ALSA: use 2 periods for capture ALSA: final selected sample format for playback: 32bit integer little-endian ALSA: use 2 periods for playback ALSA: poll time out, polled for 31999183 usecs JackAudioDriver::ProcessAsync: read error, stopping... i'm on the aptosid distribution. alsa-tools-gui is 1.0.25-2 although running jackd says "jackdmp 1.9.9", my installed debian package is jackd2 1.9.8~dfsg.4+20120529git007cdc37-4 alsa is 1.0.23+dfsg-4 and here's the clincher: kernels up to and including 3.1-6 make it all work fine (with the same versions of other things as listed above). however, kernels 3.2.0-3 and higher all cause the issues reported above. so, i guess the bottom-line question is whether other folks are running hdsp hardware successfully on 3.2 or more recent kernels, or whether we're all stuck at 3.1 for now? amusing side-note: i'm trying to use a wacom tablet, which is fine with the 3.2 and higher kernels, but not with the 3.1 -- haha!! please let me know if you have any relevant observations on this; it'd be nice to have some reassurance that my multiface isn't seeing the beginning of the end! thanks in advance.... cheers! .pltk.