Hello again. I'm sorry to say I'm still strugglig on with this problem. Further to previous emails, I finally managed to disable OSS completely - by removing the file 'oss' from the init.d directory. This made things a bit better, ie it seemed to give fewer errors, and I was able to start kmix properly (albeit with a big red "X" symbol over its icon to signify 'no sound card'). When doing 'sudo modprobe snd-hda-intel' I was back to the error: FATAL: Error inserting snd_hda_intel (/lib/modules/2.6.20-16-generic/kernel/sound/pci/hda/snd-hda-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg) I decided to follow its advice and look at dmesg. 'dmesg | grep snd' gives: [ 24.916000] snd_hda_intel: Unknown parameter `disable_msi' [ 1149.352000] snd_hda_intel: Unknown parameter `disable_msi' I have read somewhere that disable_msi is an option that can be provided when configuring the alsa driver. Does that mean that it *is* worth attempting to configure and compile my own driver? I thought I would continue down that route, anyway, and put together all the advice I have had so far about purging and removing modules, recompiling the linux headers and configuring/compiling alsa-driver-1.0.13 from the files downloaded from the alsa website. At this point I get errors about linux/config.h: No such file or directory and In file included from /home/mq/drivers/alsa-driver-1.0.13/acore/memalloc.inc:13, from /home/mq/drivers/alsa-driver-1.0.13/acore/memalloc.c:1: /home/mq/drivers/alsa-driver-1.0.13/include/adriver.h:742: error: redefinition of 'jiffies_to_msecs' I read on another forum that this latter error suggests that alsa version 13 is not suitable for kernel 2.6.20-16 and that one could try version 14rc3 instead. Is this good advice? Or am I now barking up the wrong tree again? As I've said, I really appreciate all help with this, and I'm trying my best to explore helpful things... Thanks, Martin ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user