Tv not showing zwift via hdmi

Hi has anyone had an issue of zwift not showing on a tv (laptop connected via hdmi)
works fine on tv in living room but not in spare room where I have my set up.
all I get is my home screen showing from laptop.
I have the sound though.

Is the HDMI cable 1.0 or 2.0? They are different, not by looks, but by what they transmit.

If the TV only supports 2.0 HDMI, and you have the wrong cable, that’s the result.

Thanks for the email. I have managed to sort it now. I’ve had to change the resolution on my laptop to match thr tv