Integrated motherboard sound card. One day sound stopped working. No boot sound, no nothing. Laptop's microphone works.
Installed 4 different distributions, including Debian, yet no boot sound - nothing.
same problem here. it seems any kernel somewhere after 3.6.4 produces severe misconfiguring of the pulseaudio client and X11 setups. the nay-sayers that said pulse was a dog, and it would eventually bite us, were right. SuSE, Ubuntu, and Fedora 16+ all have this failure. that this has gone on for over a year also underscores the developers' total lack of concern in correcting it. it's not on anyones critical list, to my knowledge. solution: remove pulseaudio; note: this is a code based prob, as windows 7 sound works ;)