I'm running Debian Testing, up to date as of today, and for a few months now have had no audio. I used to have sound both on the desktop and in the browser then I lost sound in the browser and finally in the desktop.
I suspect that an upgrade somewhere along the way has caused this but I don't know what and I haven't been able to cure it.
aplay -l gives me:
**** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC1150 Analog [ALC1150 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 1: ALC1150 Digital [ALC1150 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 3: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 3: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 3: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0
My monitor has built-in speakers and uses an HDMI connection so card 3 should be the one to use.
This actually produces the intended sound:
aplay -D plughw:3,3 /usr/share/sounds/alsa/Front_Center.wav
Putting those results into /etc/asound.conf as under:
pcm.!default { type plug slave { pcm "hw:3,3" } }
ctl.!default { type hw card 3 }
produces no sound.
If I boot from a live Kubuntu distro I get sound on the desktop but not in a browser.
So that means I have exhausted my knowledge of Linux and audio and I still don't have any sound. Any suggestions would be gratefully received.