First some details on the system and what I'm seeing in log files: Kernel: 2.6.23.9-85.fc8 System: Dell Inspiron XPS 1710 Audio device details: (from /root/scsconfig.log) ------- /etc/modprobe.conf ------ (only the snd lines) remove snd-hda-intel { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; }; /sbin/modprobe -r --ignore-remove snd-hda-intel options snd cards_limit=8 alias snd-card-0 snd-hda-intel options snd-hda-intel index=0 alias snd-card-7 snd-usb-audio options snd-usb-audio index=7 ------- /etc/asound.conf -------- #Generated by system-config-soundcard #If you edit this file, don't run system-config-soundcard, #all your changes here could be lost. #HWCONF #DEV 0 pcm.!default { type plug slave { pcm "hw:0,0" }} ctl.!default { type hw card 0 } ------- aplay -l -------- aplay: device_list:205: no soundcards found... ------- amixer -------- ------- /proc/asound/version -------- Advanced Linux Sound Architecture Driver Version 1.0.15 (Tue Nov 20 19:16:42 2007 UTC). ------- rpm -q alsa-lib -------- alsa-lib-1.0.15-1.fc8 ------- rpm -q alsa-utils -------- alsa-utils-1.0.15-1.fc8 ------- /proc/asound/modules -------- 0 snd_hda_intel ------- /proc/asound/pcm -------- 00-01: STAC92xx Digital : STAC92xx Digital : playback 1 00-00: STAC92xx Analog : STAC92xx Analog : playback 1 : capture 1 <snip /> class: AUDIO bus: PCI detached: 0 driver: snd-hda-intel desc: "Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller" vendorId: 8086 deviceId: 27d8 subVendorId: 1028 subDeviceId: 01ce pciType: 1 pcidom: 0 pcibus: 0 pcidev: 1b pcifn: 0 Here's output from lsmod: [root@prez ~]# lsmod | grep snd snd_hda_intel 274529 1 snd_seq_dummy 6725 0 snd_seq_oss 29889 0 snd_seq_midi_event 9793 1 snd_seq_oss snd_seq 44849 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event snd_seq_device 10061 3 snd_seq_dummy,snd_seq_oss,snd_seq snd_pcm_oss 37569 0 snd_mixer_oss 16705 2 snd_pcm_oss snd_pcm 63685 2 snd_hda_intel,snd_pcm_oss snd_timer 20549 2 snd_seq,snd_pcm snd_page_alloc 11337 2 snd_hda_intel,snd_pcm snd_hwdep 10309 1 snd_hda_intel snd 43461 9 snd_hda_intel,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep soundcore 9633 2 snd >From /root/scsound.log: <snip /> ----------- Kudzu ------------- Desc: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller Driver: snd-hda-intel Device: None >From /root/scsrun.log: ------- System Config Soundcard Log -------- Mon Jan 21 22:37:23 EST 2008 ALSA lib pcm_hw.c:1207:(_snd_pcm_hw_open) Invalid value for card aplay: main:546: audio open error: No such device amixer: Mixer attach default error: No such file or directory ProbeCards, method = hal --------- Card 0 -------- Active 1 Vendor: Intel Corporation Model: 82801G (ICH7 Family) High Definition Audio Controller Driver: snd-hda-intel Volume: 75 Devices: [[0, ' STAC92xx Analog '], [1, ' STAC92xx Digital ']] Test device 0 I included all this so it'd answer as many questions as possible up front. The files /root/scsconfig.log, /root/scsound.log, and /root/scsrun.log were generated by the Soundcard Detection applet. My sound just stopped working a few weeks ago. I haven't changed anything in the config, apart from whatever changed due to recent package updates via yum. I didn't notice that the sound stopped working until last night when I tried to use it to do some grad school work. Yikes!! I need some ideas on next steps to diagnose and fix the problem. I see an error message in /root/scsrun.log. I looked at the code and it appears to be an index number (which is 0, correct?). Sorry if all this just repeats a recent discussion. -- Mark C. Allman, PMP -- Allman Professional Consulting, Inc. -- www.allmanpc.com, 617-947-4263 BusinessMsg -- the secure, managed, J2EE/AJAX Enterprise IM/IC solution