Question Only 1440p/75Hz through HDMI 2.0

[Pijmzhchus]

I have a problem with my TV and graphics card. The GPU is RX 570 4GB Aorus and TV is Q55Q70R. I found on the Internet TV can do 1440p 120Hz, but I can't get it to work. It can do 1080p/120Hz just fine. Can you help?

https://imgur.com/tdDFGku

View: https://i.imgur.com/tdDFGku.jpg

https://imgur.com/WSe2Q26

View: https://i.imgur.com/WSe2Q26.jpg

 

[sizzling]

I didn’t find an answer when I looked but does the RX570 have HDMI 2.0? If lower then that will be your problem.

 

[Pijmzhchus]

I didn’t find an answer when I looked but does the RX570 have HDMI 2.0? If lower then that will be your problem.

It should. Don't know if this model does. If it's only 1.4 then 1440p/75Hz is the max?

 

[sizzling]

It should. Don't know if this model does. If it's only 1.4 then 1440p/75Hz is the max?

Correct

 

[Pijmzhchus]

Correct

I have another problem. When I change the resolution to 1440p and then change the refresh rate the resolution drops to 640 by 480