I have no sound at all. By starting e.g. VLC or Audacity with a
*.wav file I can see this executed, in Audacity also the wave form, but
nothing from the loudspeaker.
Likely, this is a very basic error, but I have not found the solution yet.
In an effort to fix the error I upgraded my Debian Stretch into Debian
Testing (ver. 10), but this did not solve the issue. I am running Mate
on a laptop, HP Pavilion dv4-1199eo, which in excess of this issue is
working very fine, despite its age.
Another try was according to an article
"https://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_bridge";,
and by means of the program mate-volume-control I can see it has been
installed correctly. I find the real card, HDA Intel, as well as the
imaginary Loopback unit with the later as the default one, all according
to the settings in /home/xxx/.asoundrc. But this measure did not get my
sound back neither.
Inxi is telling that the sound card, Device-1, is Intel 82801I HD Audio, and
the driver: snd_hda_intel.
Another indication that something fundamental is lacking is that the
computer has a touch switch, so I can switch on or off the loudspeaker.
The state is indicated with a red light (off) or a blue one (on), but
now this light is not shining at all.
Finally, I made a test run into MS Windows to check, and from there I
got sound as expected, so we can assume the hardware, the card and the
loudspeaker, is functioning correctly. Also the button light was working as
expected.
Hope someone has a hint of what is lacking.
Kaj
