val cant detect my montior

I have a full HD monitor, 1920x1080 (Asus Tuf Gaming Vg279Qm 27 , 280hz) when i open the game it automatically opens on my second monitor and its shown as the pic up here , i tried everythin and i mean EVERYTHING to fix it , icant change the res and my montior isnt there , i spent 6 hours to fix this shit
i updated my drivers
and i did change my display settings and everything didnt work