Hi Ivan, truth to be told v3d and the system in general works without overlays even present in boot on mainline, as a band-aid I've increased cma size at the appropriate dt node in bcm2712.dtsi:
- size = <0x0 0x4000000>; /* 64MB */ + size = <0x0 0x8000000>; /* 128MB */ and sway switched to 4K without a hitch. I'm still learning the ropes, and could be missing something obvious (been playing occasionally with pi for just 2 months), but defaults that live up to hw specs, change dinamically based on those or working custom configuration springs to mind :) Two out of three may already be there, but I couldn't make it work on my setup (so far). I'm aware its WIP, so no rush, pure fun... A week ago I wasn't able to run pi in 4K/HiDPI hw accelerated on mainline and knew less about it than I do now. Thanks for the info, BR, Ivan
