Smithy47:I just tried this now. Unfortunately it made no difference.
sansom:Is there any way to get the box back to the previous firmware, so I can get video without having to change inputs?
I updated both of our devices yesterday. Both initially appeared to go fine, but I've since discover one of two has a problem.
The bedroom device is connected to a Panasonic plasma. When I initially turn this device and TV on, the audio is fine, but just a black screen. I need to switch the tv to another HDMI input (AppleTV), then back, before I'll get any picture. I've repeated it numerous times - same behaviour every time. (would soon get really annoying)
This TV is a little slower to start when initially powered on (when compared to my main LG OLED TV). My guess is that the VTV isn't getting the HDMI handshake from the TV in time (for the list of supported resolutions, or whatever it's looking for), and results in no image. When I change AV inputs and back, the HDMI connection is renegotiated, and things start working.
Thanks @sub, we'll have a look into that issue with the Panasonic as that shouldn't be happening (I have a Panasonic and don't have any issues).
Try turning the power off at the wall for the VTV for 30 seconds and then let it boot up. Had the same problem, did this and it fixed it. Worth a try.
Hope it helps.