Comment 10 for bug 366708

This appears to be related to pulseaudio device suspend/resume. if a device is unused for 2s, pulse will close it. if it's being used again, pulse will re-open it with the same parameters as before, which somehow fails on my usb device:

I: module-alsa-sink.c: Trying resume...
E: module-alsa-sink.c: Failed to set hardware parameters: Operation not permitted

See this related mail by PA's author Lennart Poettering:

http://<email address hidden>/msg03228.html

For now i can work around this by disabling suspend-on-idle in /etc/pulse/default.pa:

### Automatically suspend sinks/sources that become idle for too long
#load-module module-suspend-on-idle

I regard this as what it is: just a workaround.

Can anyone confirm these findings?