After resuming from s2disk ALSA will not produce any sound. For example, all tests in Gnome main menu System > Preferences > Sound Preferences do produce a sound after an Ubuntu restart but not after a Resume from Suspend-to-Disk. They used to produce a sound under Feisty though.
My computer is a Medion MD97600 using an Intel 82801FB High Definition Audio Controller (rev03).
detlef@MD97600:~$ lsmod | grep snd
snd_hda_intel 263712 1
snd_pcm_oss 44672 0
snd_mixer_oss 17664 1 snd_pcm_oss
snd_pcm 80388 2 snd_hda_intel,snd_pcm_oss
snd_seq_dummy 4740 0
snd_seq_oss 33152 0
snd_seq_midi 9600 0
snd_rawmidi 25728 1 snd_seq_midi
snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi
snd_seq 53232 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24324 2 snd_pcm,snd_seq
snd_seq_device 9228 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 54660 11 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 8800 1 snd
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm
I have just the same problem.
My audio infos follow:
$ lsmod | grep snd
snd_hda_intel 263712 4
snd_pcm_oss 44672 0
snd_pcm 80388 3 snd_hda_
snd_mixer_oss 17664 1 snd_pcm_oss
snd_seq_dummy 4740 0
snd_seq_oss 33152 0
snd_seq_midi 9600 0
snd_rawmidi 25728 1 snd_seq_midi
snd_seq_midi_event 8448 2 snd_seq_
snd_seq 53232 6
snd_seq_
snd_timer 24324 3 snd_pcm,snd_seq
snd_seq_device 9228 5
snd_seq_
snd 54660 15
snd_hda_
soundcore 8800 1 snd
snd_page_alloc 11400 2 snd_hda_