[martinzima]

After more than 3 years, he's probably stopped looking

Lol, yes the original poster may have stopped looking, but this is an issue that is still concurring 4 years on, and there several million people using Kodi, so hopefully it will be helpful to someone!

[Karellen]

Hopefully it will help someone.

Thank you for taking the time to write up a solution that worked for you

[tehax]

I had the same problem, this was DRIVING ME CRAZY!

I have a laptop, connected to a 40" TV via HDMI, set all the registry keys to 1920, 1080 as above but no joy, Kodi still lost full screen when my TV came back from standby.

If the above does not work and/or you have a similar setup, try setting your "scaling" to a non-standard setting...

Right click on the desktop > Display settings > Custom scaling > Enter a number (I was on 150% scaling, so I entered 151%) - VIOLA!

Hope this helps!

I can' t belive it but it works for me on win 8.1
Why get Kodi Team this massive issue not solved
Thank you very much