Can't fix underscan on external display

[Bikger2]

Hello there,
I just got a Dell P2422H display, and when I first plugged it into my m1 MacBook Air , it all worked seamless, but after my Mac went to sleep and I woke it up later, my external display started showing quite some underscan. It makes it horrible to look at.

I tried a lot of ways of fixing it like:
Changing the resolution and refresh rate
mirroring the display
Safe mode
Tried using it via a test user account
plugging in and out the monitor, using different ports
plugging Mac into another monitor that shows no underscan

Things to note: There weirdly is no underscan when I change to the following resolutions (1280x1024, 1152x864 and 1024x768)
The display is connected with an HDMI cable through a satechi usb c hub.
At this point, I'm just panicking and have no idea what to do.

Help much needed!

 

[Cory Cooper]

Hello and welcome.

-Are there any controls on the Dell itself for overscan?
-Have you tried connecting it directly without going through the Satechi hub?

C

 

[Bikger2]

There's this setting called auto adjust but it just won't let me access it for some reason. When I connect a Windows machine to the display, the auto adjust setting is available.
I can't connect it directly, the display has no usb-c