HDMI 1080p was working. But I setup HDHomeRun and MythTV then did, sudo apt-get update and sudo apt-get upgrade. I went back in the video and sound setup to change the sound setup and now it is malfunctioning: Nothing I do will send the picture to the TV through HTMI. When I select 1080p the little confirmation window looks correct EXCEPT it reports the aspect ratio as 4:3, when it should be 16:9. It appears fixed at 4:3 as I tried several other resolution changes.
Any hints on how to work around/fix/revert this?