Hello,
since kernel 3.1 playing sound through HDMI via pulseaudio stopped working after suspend/resume on my Intel HDA (there is simply silence after resume). Same for 3.2. This worked up to 3.0 and it still works when I configure pulseaudio to play through Analog Stereo instead of HDMI, hence I guess the issue is more connected to ALSA than to pulseaudio.
A work-around is to induce pulseaudio to re-open the underlying audio devices (`pasuspender true' does the trick).
Here is the alsa-info.sh output for kernels 3.0 and 3.1 (no significant changes afaics): http://www.alsa-project.org/db/?f=67e9358c83963773f69905b12d7dba06c4c010ed http://www.alsa-project.org/db/?f=219dd70eee2160669f86c77c0585244b2decb5ef
Please let me know if I can provide further information.
Thanks for your work & best regards Mario