Hi folks...Once upon a time, using Ubuntu Edgy, and rebuilding libasound2 plugins to include libasound_module_pcm_jack.so, I was able to successfully use skype with jack, using a custom pcm device specified in .asoundrc: pcm.skype { type plug slave { pcm "configvoip" } } pcm.configvoip { type jack playback_ports { 0 system:playback_1 1 system:playback_2 } capture_ports { 0 system:capture_1 1 system:capture_1 } } The sound card in question is an M-Audio Delta 44 (ice1712). The above configuration worked flawlessly, but due to issues with other sound applications using jack, I was forced to attempt various upgrades of jack, alsa, kernels, and even distributions. Eventually I settled on Debian Lenny, which includes the alsa jack pcm plugin by default, unlike Ubuntu, and now have few if any issues with jack-capable sounds apps. However, I cannot use skype with the above configuration on any consistent basis because for reasons unknown, when I make a skype call, and the alsa jack plugin is invoked, that thread may last a few seconds, the thread dies, and crashes jackd in doing so. Currently I'm using a custom RT kernel, 2.6.26.8-rt12-daw1, and stock versions of alsa*/jack* that Debian Lenny uses as of todays date. alsa-base: 1.0.17dfsg-4 libasound2: 1.0.16-2 libasound2-plugins: 1.0.16-1+b1 libjack: 0.109.2-3 jackd: 0.109.2-3 skype: 1.4.0.118 (yes, I tried 2.x and got same result) So, some questions. How would I go about troubleshooting the cause of the dying thread, and subsequent crashing of jackd? How do I determine the alsa version of the ice1712 driver used in kernel 2.6.28.8, alsa website shows 1.0.18a as current driver version. I can play 16 bit 44k1 wav files fine using aplay -D skype /path/to/file, from jack_lsp: alsa-jack.configvoipP.18769.0:out_000 alsa-jack.configvoipP.18769.0:out_001 Any thoughts, directions, etc would be greatly appreciated, thanks. -- aRDy Music and Rick Dicaire present: http://www.ardynet.com http://www.ardynet.com:9000/ardymusic.ogg.m3u