I have got xubuntu 18.04 on old Toshiba Satellite M115-S1061 notebook. The sound was great with WinXP, so no hardware problem. I tried Lubuntu 16.04, Lubuntu 18.04 and Linux Mint Mate19.3. All with "no sound problem".
Now xubuntu 18.04 has at least some very very low sound in headphones. Alsamixer unmuted, Pavucontrol on maximum. Plese, have you got some hint for me?
I hope you are ok and enjoying your quarantine. Josef
