I have an Alienware 17 r5 i9 laptop which has a gtx 1080 graphics card. The laptop screen is 1080p 60hz. I am currently using a 43 inch 1080p 60hz Sony Bravia tv and I am connecting the tv to the laptop by hdmi and I am duplicating the screen in windows. My tv is very old so I want a new screen and I want to buy a 4k pc monitor.

If I want to do 1080p on a 4k screen then the 4k screen has to properly scale to 1080p. In order for that to happen then the graphics card has to use integer scaling to do the scaling. I have a gtx 1080 graphics card and that's a pascal graphics card. Unfortunately, pascal graphics cards don't support integer scaling so I have to rely on the scaling of the screen and I can get a blurry picture.

I saw this trick Integer Scaling - How to play crisp 1080p on 4k display (Windows 10) - YouTube. The video says to set the monitor to 4k and to set dpi scaling to 200% so you artificially get 1080p without setting it.

This is the part that I don't understand. At 0:43 it said that the game must be set to borderless full screen and it shouldn't be exclusive full screen. After that at 0:47 it said that if choosing a resolution in the game is still an option then you must set the resolution to 1920x1080.

On my current tv the windows resolution is set to 1920x1080. In most of my games when I play them in borderless full screen the option to choose the resolution in the game goes away. I am assuming that the game resolution is 1920x1080 when the option to choose the resolution in the game goes away.

When I buy a 4k monitor and I set the windows resolution to 4k and I set dpi scaling to 200% and I run a game in borderless full screen and the option to choose the resolution in the game goes away then what will the game resolution be? Will it be 1920x1080 or will it be 4k? How do I check what is the game resolution when the game is running in borderless full screen and the option to choose the resolution in the game goes away?

If the game misbehaves if I play it like that then I can do the same thing like at 0:22 in the video and I override the dpi scaling of the game in the computability settings and I set it to system to force the game to follow the dpi scaling of windows. If the game is still misbehaving then I will set it to window mode instead of borderless full screen and then I will set the game resolution to 1920x1080 and then I will run the game by using this program IntegerScaler — nonblurry scaling of games in Windows 7+ and then the game should behave. Is what I said correct?