[Gutsy] ALSA does not produce any sound after resume from s2disk

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_intel,snd_pcm_oss
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_oss,snd_seq_midi
snd_seq 53232 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24324 3 snd_pcm,snd_seq
snd_seq_device 9228 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 54660 15
snd_hda_intel,snd_pcm_oss,snd_pcm,snd_mixer_oss,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

alsa-driver (1.0.15-3ubuntu1) hardy; urgency=low

  * Merge from Debian unstable.
  * Ubuntu-specific changes:
    - debian/alsa-base.apm: fix script location;
    - debian/alsa-base.NEWS: note Ubuntu locations of scripts;
    - debian/alsa-base.README.Debian: minor spelling correction;
    - debian/alsa-base.dirs: don't list /etc/init.d or
      /etc/alsa/modprobe-post-install.d, use /sbin;
    - debian/alsa-base.postinst: delete /etc/modprobe.d/sound;
    - debian/control: add Vcs-Bzr URI, support lpia, adhere to
      DebianMaintainerField spec;
    - debian/linux-sound-base.config: use Ubuntu blacklist naming
      convention, reorder other removals for clarity;
    - debian/linux-sound-base.postinst: reuse Ubuntu blacklist naming
      convention;
    - debian/linux-sound-base.postrm: for the remove operation,
      forcibly delete all package-installed blacklist files;
    - debian/rules: minor spelling corrections, don't ship snddevices
      or alsaconf scripts, install compatibility initscript into
      /sbin, install apm script into /etc/apm/scripts.d, use Ubuntu
      blacklist naming convention.
  * Fixing the locations of the apm and init- scripts addresses the
    following bugs: LP: #125086, LP: #158577, LP: #174022.

alsa-driver (1.0.15-3) unstable; urgency=low

  [ Jordi Mallach ]
  * Switch to now official Vcs-* control fields.
  * Recommend module-assistant and linux-headers, drop pre-etch kernel
    package names.

  [ Elimar Riesebieter ]
  * Added finnish translation of debconf templates. (closes: #453659)
  * Since /etc/init.d/alsa has been moved to /usr/sbin/alsa,
    /etc/apm/scripts.d/alsa needs the new path. Thanks Jan Medlock for the hint.
    (closes: #455076)

 -- Daniel T Chen <email address hidden> Wed, 12 Dec 2007 23:37:13 -0500