I tried to fix this with unloading sound modules, but it didn't help.
I upgraded my edgy to feisty. So I don't know if the error exists on new installed systems.
If I saw it right there are some additional sound modules loaded after hibernate.
These modules were not loaded during a start of the system and the sound worked. After hibernation they were loaded and sound didn't work.
Unloading these modules didn't help.
confirm on Thinkpad z60m
I tried to fix this with unloading sound modules, but it didn't help.
I upgraded my edgy to feisty. So I don't know if the error exists on new installed systems.
If I saw it right there are some additional sound modules loaded after hibernate.
sb_lib
uart401
sound
snd_cs46xx
snd_ac97_codec
ac97_bus
gameport
sound_firmware
These modules were not loaded during a start of the system and the sound worked. After hibernation they were loaded and sound didn't work.
Unloading these modules didn't help.