Comment 7 for bug 14333

I have the same problem here.
I had Warty with last upgrades and sound worked. Burned final Hoary Install CD
on April 8, apt-cdrom added it, dist-upgraded it, rebooted with the new 2.6.10
kernel and sound stopped working. It doesn't show any errors, just can't hear a
sound. Oh... mplayer hangs.
If I reboot and select the old wary 2.6.8 kernel, sound WORKS again. So I think
it's a kernel problem and not alsa's fault. But I'm no expert.

Mother: ASRock K7S41GX (http://www.asrock.com/product/product_k7s41gx.htm).

diego@antu:~ $ cat /proc/asound/cards
0 [SI7012 ]: ICH - SiS SI7012
                     SiS SI7012 at 0xdc00, irq 177

These are the differences between the loaded modules on both kernels.
diego@antu:~ $ diff 2.6.8.1-5-386.log 2.6.10-5-386.log
4d3
< asus_acpi
5a5
> bitblit
12a13,14
> container
> cpufreq_ondemand
15d16
< crc32
21c22
< fat
---
> fbcon
25a27,28
> i2c_core
> i2c_sis96x
36,37d38
< nls_cp437
< nls_utf8
41c42
< pciehp
---
> pcc_acpi
58d58
< snd_mpu401_uart
62,63d61
< snd_rawmidi
< snd_seq_device
64a63
> sony_acpi
72c71
< vfat
---
> video

PS: I tried booting Hoary's LiveCD from Ubuntu and Kubuntu and non of them
worked either.