Some time ago I asked for help with random muting audio and everything
recommended did not help.
Ehile looking at logs recently I noticed the following
Aug 17 23:59:13 bilbo kernel: [ 159.830042] i2c IR (Pinnacle PCTV):
unknown key: key=0x35 raw=0x35 down=1
Aug 17 23:59:14 bilbo kernel: [ 159.950043] i2c IR (Pinnacle PCTV):
unknown key: key=0x35 raw=0x35 down=0
Mostly as pairs but some times singularly.
I have never had an infra-red sensor plugged into the card so tried
plugging it in but the messages continued and the random muting seemed
the correlate with the messages.
So a quick google later and the driver was removed with modprobe -r
So far it has been almost 2 full days with out a single muting.
I have also black listed the driver but I'm not sure if that is working
because I had to do the modprobe after a restart to stop the messages.
hopefully I'm the only one with this problem but the info in now in the
archive in case someone else suffers the same in the future.
73 Roger G6CKR