the important part is this:
May 28 10:38:11 x1-6-00-09-5b-0b-8b-37 kernel: i810_audio: unable to allocate irq 0
May 28 10:38:11 x1-6-00-09-5b-0b-8b-37 insmod: /lib/modules/2.4.20-8/kernel/drivers/sound/i810_audio.o: init_module: No such device
This seems to suggest that your system indeed cannot talk to your soundcard. (There might be a problem with the i810_audio driver. I am not sure, I have tried this driver on a fedora system and it didnt work either. To be honest, I wasnt able to solve the problem then. Worked on SuSE though.)
However, this may just as well be a less difficult problem to solve.
I am astonished about this section:
May 28 10:38:11 x1-6-00-09-5b-0b-8b-37 kernel: Intel 810 + AC97 Audio, version 0.24, 17:27:30 Mar 13 2003
It seems to suggest that the driver has been loaded.
This needs further investigating. Please do a lsmod
and post the output. (it would also be helpful, if you'd check if the output differs before and after you run the sound card detection program. The crucial part is where the output contains "810" (or "i810" or "Intel 810". "810" is a resonable compromise. You can filter the output by attaching "| grep 810" to either command (e.g.: lspci | grep 810
One thing you could try right now (without more information) is check, if your sound controls are not muted (this was a problem on fedora core 1.9x, might just be there redhat, too). The command would be alsacntl
(I am not completely sure right now. Type "alsa", hit tab and chose the command that seems to be closest). If all controls that show up are on zero, you've got (at least part of) your problem's solution right there. Bring them up to a medium level.
Good luck, I'll respond as soon as I can,