Made a little progress: headphones work with /etc/modprobe.d/alsa-base.conf: options snd-hda-intel model=mono-speakers
Volume is loud and clear, in stereo!
alsa-info.sh output is attached with coefficients. Headphones were not plugged in at that time to keep the diffs to a minimum.
Made a little progress: headphones work with d/alsa- base.conf:
/etc/modprobe.
options snd-hda-intel model=mono-speakers
Volume is loud and clear, in stereo!
alsa-info.sh output is attached with coefficients. Headphones were not plugged in at that time to keep the diffs to a minimum.