Ah thanks for that link. Yeah for now I am just sticking to older drivers without RandR 1.2 support. I have used 4k tiled displays since 2006 (I lol’d a little bit when the first sentence says starting to make…)
Anyway older drivers always handled this with absolutely no problems. Also my main machine is still using an old X (with XGL) which pre randr 1.2 so I have not had any problems until recently when I was getting a machine setup for my sister and installed a new ubuntu for her to use and then boom the problem cropped up…
I honestly think I just opt for the number 1 option. Maybe I will sign up that mailing list as I am on several other including the linux kernel one.
Of course randr doesn’t give me any functionality I care about. In general it seems to make X windows more like windows with plug and plan and stuff like that which is actually the wrong direction to go in IMHO.
Linux by far seems to be the best OS for driving these displays being able to setup everything through config files and even get scaling at lower resolutions working correctly by you telling X what to do. I had people argue with me on other forums saying you can’t do scaling over MST and I said no… they just haven’t implemented it to the point that I made a youtube video showing it: