Thanks. I added the following line to /etc/modules and got video output via the 3.5mm jack:
tv
I was trying to play video files and the default choice of vdpau output was giving a blank screen. There was no audio output either.
I had to use alsamixer and unmute 'Audio lineout' and feed the following options to mpv:
mpv --vo=x11 --audio-device='alsa/plughw:CARD=audiocodec,DEV=0' $FILE
No other video output was working. This of course means no hardware acceleration.
Am I missing something?
Another issue is with the overscan. Is there a way to compensate for this?