I have connected my steamdeck to a dockingstation and an external monitor. but whatever i do, i cant change my resolution.

I have tried in the steam settings, ive tried in the property settings from the game itself. a factory reset,.....

and when i go in game, i can see the resolution of 1920x1080 but when i select it, it doesnt adapt good to my monitor and stays at a lower resolution, so i can see my resolution but when i select it, it doesnt work correctly.

is there any other way i can fix this, i have been trying for 3 days now. with diffrent monitors, cables, ect. but all the same problem.