coroner21

I just edit the provided systemd unit to make mpd depend on a working network connection (wait-online target). That way so far my cifs mounts were already there and mpd...

It seems this is currently an obstacle for getting my LG 5k display to work with full resolution in sway. Happy to support in any way getting this to work....

Would it not be preferable to indeed just do this under the hood in wlroots? - The compositor should only have to deal with actual screens (the complete physical display...

OK, it just seems easier for me to work on such a more simple solution since it would require basically tracing the flow from display registering to output rendering and...

That probably makes sense. Will definitely take you up on the offer to provide some guidance on this. Have already started to dig into the DRM backend code... I expect...