Tvheadend

Hello

Having worked fine for ages, my installation of TVHeadend suddenly stopped displaying live TV in "normal", and became narrow (wrong aspect ratio). I made sure I'd updated to the latest (HTS Tvheadend 4.2.8-36~g5bdcfd8ac), but the problem persists.

I'm using Ubuntu 18.04 with a Sundtek DVB-T usb adapter, which has worked faultlessly for years.

I have spent several hours searching but I can find no answers. I've tried different stream profiles with differing resolution (height), but nothing changes the output in the live tv player -- see screenshot. The tv sound and radio stations are all fine.

I'm hoping someone has found a solution, and will be kind enough to put me out of my misery!

Thanks.