I wanted to add another finding: This is totally an Apple Silicon issue. Connecting the same display to my 5k iMac from 2017 just works fine. The offered scaled resolutions are totally fine and usable. So i assume it would be a bug in BigSur for M1. Scaled resolutions offered on the intel Mac are: 1600x675 1048x864 2560x1080 3360x1417 3840x1620 All of the sound reasonable to me while the lower 2 basically only should work fine for visual impaired people - they leave very little screen estate. From the middle one on this seems fine to me, especially the two higher ones. The right most one would perfectly match the 27" iMacs screen next to it which is about the same height. Scaled resolution used there is 2880x1620. This finding leaves some hope for me that the issue is really only a bug in Big Sur for M1 but we will probably not know for sure until Apple says a word on it or even fixes it. Still not sure if I should send the display back or keep it - basically it really looks nice in term of design and image quality. EDIT: I just checked back on the MacMini with the Display attached. Scalings are actually the same from low to medium which I had in mind differently. But the higher two differ by a lot. Those are 3008x1269 5120x2160 The last one is unscaled 5k which is definitely way too small to be usable. The first of the two is working but the 1269pt of height are definitely way too low for a normal usecase for this display. You can already see the huge step between the two compared to when the display is attached to the iMac. EDIT: I forgot to name the display. It's an LG 34WK95U-W