I'm getting the same problem as the first poster with 2.6.1 and the alsa driver that comes with slack 9.1. Alsaconf doesn't detect any soundcard and apps complain that there is no /dev/dsp. Under 2.4.22 alsaconf detected it fine as an intel8x0 / SiS 7012pci audio accel and the sound worked great.
From memory there is no option under the alsa options in menuconfig for this sound card. Should I recompile the kernel with sound support checked, but leaving the oss and alsa options unchecked, and then compile the latest alsa drivers from source and load them as modules as per this page
? Are you guys loading alsa as a module/modules or did you compile it into the kernel somehow?