If you need to view what’s happening on another TTY on your headless linux box, you can SSH in, su, and then do:
tail -f /dev/vcs1
This will enable you to see what’s happening on the headless TTY on your local screen. There’s a utility called “screen” that is similar, but the above trick works if you didn’t have a virtual screen set up to begin with.
Here’s another tip: when your sound card dies for some reason:
alsa force-reload
seems to fix it right up.