My sound has recently stopped functioning. This seems to be all sound,
Youtube on Firefox and Xine are both silent.
I am using Pulseaudio.
marc@quixote:~$ dpkg -l | grep pulse
ii apulse:amd64 0.1.13-2 amd64
PulseAudio emulation for ALSA
ii libpulse-mainloop-glib0:amd64
16.1+dfsg1-2+b1 amd64 PulseAudio client
libraries (glib support)
ii libpulse0:amd64 16.1+dfsg1-2+b1 amd64
PulseAudio client libraries
ii libpulsedsp:amd64 16.1+dfsg1-2+b1
amd64 PulseAudio OSS pre-load library
ii libsox-fmt-pulse:amd64 14.4.2+git20190427-3.5
amd64 SoX PulseAudio format I/O library
ii pulseaudio 16.1+dfsg1-2+b1 amd64
PulseAudio sound server
ii pulseaudio-utils 16.1+dfsg1-2+b1
amd64 Command line tools for the PulseAudio sound server
If I run pavucontrol and have a video running on Youtube in Firefox, or
on Xine, then it shows the fluctuating sound on the 'Playback' tab, but
no sound is audible.
I just noticed something that seems pertinent. In pavucontrol, on the
'Output Devices' tab, the port is listed as 'Line Out (plugged in)"
which is correct, but the slider below that is almost all the way to
'Silent' at -64.00 decibels. This would seem to be the issue, but it is
disabled, so that I can not set it higher.
Does anyone have any ideas what might have gone wrong, and what I can do
to fix it? Or what I can look for the further narrow down the problem?
I did, recently, allow aptitude to uninstall a lot of packages,
including libraries, that is claimed where automatically installed, but
unused. I would guess that one, or more of these libraries was actually
in use, but not knowing the inner workings of pulseaudio I have no idea
which might be involved. I did make a copy of the list before allowing
aptitude to uninstall them all.
Marc