[linux-audio-user] lost user access to alsa

greetings! i'm using a laptop with ubuntu dapper, 2.6.15 kernel (with ingo's patch), alsa 1.0.10, and jackd 0.100.0. this system was working flawlessly with with both the onboard soundcard and my RME Multiface, with realtime access as user, until a recent install of some dvd-playing apps. now, when i try to bring up jack *as user* i get: --------------------------- |~: /usr/bin/jackd -R -m -dalsa -r44100 -p128 -n2 -D -Chw:1,0 -Phw:1,0 jackd 0.100.0 Copyright 2001-2005 Paul Davis and others. jackd 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 compiled with System V SHM support. loading driver .. apparent rate = 44100 creating alsa driver ... hw:1,0|hw:1,0|128|2|44100|0|0|nomon|swmeter|-|32bit control device hw:1 ALSA lib confmisc.c:1107:(snd_func_refer) Unable to find definition 'defaults.pcm.subdevice' ALSA lib conf.c:3493:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:3951:(snd_config_expand) Args evaluate error: No such file or directory ALSA lib pcm.c:2102:(snd_pcm_open_noupdate) Unknown PCM hw:1,0 ALSA lib confmisc.c:1107:(snd_func_refer) Unable to find definition 'defaults.pcm.subdevice' ALSA lib conf.c:3493:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:3951:(snd_config_expand) Args evaluate error: No such file or directory ALSA lib pcm.c:2102:(snd_pcm_open_noupdate) Unknown PCM hw:1,0 ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode cannot load driver module alsa Segmentation fault ------------------------------- the same command line *as root* works fine. i don't know what has changed.... can someone help me sort this out? many thanks in advance! .pltk.