[mythtv-users] Sudden audio problem
jyavenard at gmail.com
Sat Mar 1 06:38:09 UTC 2014
On Saturday, March 1, 2014, Mike Carron <jmcarron at starstream.net> wrote:
> After several months of normal operation, one FE (a Zotac ZBOX AD-03
> with Mythbuntu 12.04 0.25/fixes) suddenly dropped sound completely while
> watching live tv. Checking the log produced 4 errors together at the time
> when the sound was dropped:
> ALSA: Setting hardware audio buffer size to 128
> ALSA: Error opening /proc/asound/card0/pcm3p/suub0/prealloc: Permission
> ALSA: Try to manually increase audio buffer with: echo 128 | sudo tee
> ALSA: Unable to sufficiently increase ALSA hardware buffer size -
> underruns are likely
> I can restart the FE and the same scenario will repeat, some amount of
> time with completely normal sound followed by silence. Those 4 items will
> be in the log at the exact time the sound fails.
> If someone is familiar with this situation and can offer suggestions that
> would be great.
Those messages are harmless. You can ignore them.
Make sure the audio device didn't change in the settings, and that it's not
muted using the alsa-mixer utility
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