Re: HDMI works initially but wont work after changing to TV and then back to HDMI
First, this is not meant to be an insult, I've run into this...
is there a chance that dpms/powersave has blanked the screen? Have you tried pressing something on the keyboard?
Probably so, next, does your tv have a 'Status' dialog you can bring up that would show 720p/1080p/no signal?