no sound after suspend

[Eric Anopolsky]

How to reproduce:

1. Suspend my laptop (thinkpad T61p).
2. Resume my laptop.
3. Try to play a sound.

Sound-playing applications appear to work normally, but nothing comes out of the speakers.

Workaround:
$ sudo alsa force-reload
$ sudo /etc/init.d/pulseaudio restart

[Chris (bridgeriver)]

I found what looks like an effective workaround for this on my ASUS EEE 900A. The trick is to modify /etc/pulse/default.pa and add "tsched=0" to the "load-module module-detect" line. This disables PulseAudio's "glitch-free" feature. I did this a week ago and the problem has not recurred over perhaps 30-40 suspend/resume cycles (it used to happen every 3 cycles, more or less).

There is more info at: https://fedoraproject.org/wiki/Features/GlitchFreeAudio