Hi I have glitches in my audio every 30-60 secs or so, so I thought I'd try disabling acpi and see what happens. I added this to my /boot/grub/menu.lst: title Debian GNU/Linux, kernel 2.6.15-1000hz noacpi root (hd0,0) kernel /boot/vmlinuz-2.6.15-1000hz root=/dev/hda1 ro pci=noacpi initrd /boot/initrd.img-2.6.15-1000hz savedefault boot It's an exact copy (except the name and the pci=noacpi) of my working entry. After booting using this, jack (I use qjackctl) won't start, this is what I see in the messages window: 10:37:49.720 Startup script... 10:37:49.721 artsshell -q terminate qstring_to_xtp result code -2 can't create mcop directory Creating link /home/atte/.kde/socket-ajstrup. 10:37:49.967 Startup script terminated with exit status=256. 10:37:49.967 JACK is starting... 10:37:49.967 jackd -R -P70 -dalsa -dhw:0 -r48000 -p256 -n2 -S 10:37:49.978 JACK was started with PID=11427 (0x2ca3). cannot write to jackstart sync pipe 4 (Bad file descriptor) jackd: wait for startup process exit failed jackd 0.101.1 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 = 48000 creating alsa driver ... hw:0|hw:0|256|2|48000|0|0|nomon|swmeter|-|16bit control device hw:0 ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode cannot load driver module alsa 10:37:50.006 JACK was stopped successfully. qstring_to_xtp result code -2 10:37:52.129 Could not connect to JACK server as client. Please check the messages window for more info. qstring_to_xtp result code -2 This is my .jackdrc: atte@ajstrup:~$ cat .jackdrc jackd -R -P70 -dalsa -dhw:0 -r48000 -p256 -n2 -S Moreover xmms fails with: ** WARNING **: oss_open(): Failed to open audio device (/dev/dsp): No such file or directory So something seems all messed up with my sound card (at least it doesn't seem to be available), although the modules does get loaded: atte@ajstrup:~$ lsmod | grep snd snd_seq_virmidi 7936 0 snd_seq_dummy 3972 0 snd_seq_oss 35968 0 snd_seq_midi 9504 0 snd_seq_midi_event 7552 3 snd_seq_virmidi,snd_seq_oss,snd_seq_midi snd_seq 55056 10 snd_seq_virmidi,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_intel8x0m 18316 0 snd_pcm_oss 55072 0 snd_mixer_oss 19968 1 snd_pcm_oss snd_intel8x0 34588 0 snd_ac97_codec 97440 2 snd_intel8x0m,snd_intel8x0 snd_ac97_bus 2432 1 snd_ac97_codec snd_usb_audio 79168 0 snd_usb_lib 17152 1 snd_usb_audio snd_pcm 93704 5 snd_intel8x0m,snd_pcm_oss,snd_intel8x0,snd_ac97_codec,snd_usb_audio snd_timer 26244 2 snd_seq,snd_pcm snd_page_alloc 11144 3 snd_intel8x0m,snd_intel8x0,snd_pcm snd_rawmidi 26400 3 snd_seq_virmidi,snd_seq_midi,snd_usb_lib snd_seq_device 8972 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_rawmidi snd_hwdep 9760 1 snd_usb_audio snd 57188 15 snd_seq_virmidi,snd_seq_oss,snd_seq,snd_intel8x0m,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_usb_audio,snd_pcm,snd_timer,snd_rawmidi,snd_seq_device,snd_hwdep soundcore 10592 1 snd usbcore 134916 6 snd_usb_audio,snd_usb_lib,usbhid,uhci_hcd,ehci_hcd Any idea what's wrong? -- peace, love & harmony Atte http://www.atte.dk | quartet: http://www.anagrammer.dk | compositions: http://www.atte.dk/compositions