Custom resolution on secondary monitor Fedora Wayland

How can I set a custom resolution on wayland such as 1440p?
Since it’s a 4k display it will only show either 1080p or 4k. How to pick the middle ground?

I’d do a kernel option for the second display’s port. Something like:

video=HDMI-A-1:2560x1440MR@60

I think M generates the resolution regardless of it not being in EDID, and R reduces the bandwidth. There’s a kernel docs page somewhere that explains that way better.

It’s possible HDMI-A-1 will need changed to something like DP-1 depending on how the display is connected. In any case, setting a kernel option like that carries-over to Wayland and Xorg seemingly any DE no problem.

I do not have a 2 monitor setup to test on.

Can you set the scaling for each monitor separately I wonder?

I for example run on a 4k monitor scaled to 125% using the kde plasma display configuration settings.

I can, but my goal is using a custom resolution not in the list

not sure how to use this, and where to edit