Comment 6 for bug 222428

Confirmed here as well, with a fix (at least it works for me). running kubuntu hardy

try out
sudo /etc/init.d/alsa-utils stop
sudo alsa force-reload
sudo /etc/init.d/alsa-utils start

the force-reload is key since some kde processes are using the sound modules, and a normal reaload won't work.

if that works, create a file:

sudo vim /etc/pm/sleep.d/fixsound

#!/bin/bash
/etc/init.d/alsa-utils stop
alsa force-reload
/etc/init.d/alsa-utils start

now change permissions:
sudo chmod 770 /etc/pm/sleep.d/fixsound

Adding this file will make sound automatically work when you resume.

For whatever reason adding my snd modules to /etc/default/acpi-support (so they should in theory get reloaded) didn't work.

James