Comment 29 for bug 1828136

I guess you alsa driver works after booing up, but the pulseaudio fails to get your built in sound card via alsa-lib.

To check it, after booing up, run pactl list cards, I guess you could only see one dummy card and one nvidia hdmi audio card; after sudo alsa force-reload and run pactl list cards, you will see one built in audio card and one nvidia hdmi audio card.

If it does, we need to debug pulseaduio to check why it fails to detect built-in card after booing up.