I have a new HP 450 G3
I installed Ubuntu 15.10; No sound.
Then I changed
intel.conf: sound worked fine until 3 days ago.
New files were recommended by Ubuntu: I agreed, files were installed, since then, no sound.
Then I upgraded to Ubuntu 16.04: no sound
I checked for
intel.conf => was changed by upgrade changed intel.conf manually as under 15.10 (when sound worked aftrerwards): => still no sound terminal commands used afterwards:
sudo cat /proc/asound/cards: => no file or directory found sudo lspci | grep -i audio: => no output aplay /usr/share/sounds/alsa/Front_Center.wav => ...: WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate: 48000 Hz, mono
Sound seems to work... but no output...