--- Comment #7 from [hidden email] ---
(In reply to Kubilay Kocak from comment #1)
I am using CURRENT with the MATE desktop environment. I was listening to audio
using VLC. When the problem happens the normal sound stops and you hear a loud
fast "buzzing" noise for about 20-30 seconds and then the noise stops. At that
point, everything on the machine is still working except for sound. It
requires a reboot for sound to work normally again.
Unfortunately, it is not possible to reliably reproduce this problem. It can
take weeks or months to show up. I have seen this occur previously, at that
time I was running VBOX as a host and the sound would stop in the guest VM.