Comment 11 for bug 1711101

(In reply to Tanu Kaskinen from comment #5)
> Ok, so HDMI is on a different alsa card than analog output. That explains
> why unplugging HDMI doesn't result in moving audio to the analog output. We
> don't currently automatically reroute from one card to another on an unplug
> event. This should be fixed, but I can't give any timeline.

but there is no available HDMI ports available anymore , this mean that the only available port is the internal speaker as headphone is not plugged