I can confirm that this does work. I do exactly that do spread one GL surface to both displays. I would guess rendering the texture twice at the correct framebuffer position would be easier but I’m still curious if it’s possible to zero copy a texture into one of those DRM handles to use for another framebuffer?[..]gut feel is that you should be able to pass exactly the same framebuffer handle you are using on the first crtc to the second one too
https://blaztinn.gitlab.io/post/dmabuf-texture-sharing/ sounds like it might help?
Statistics: Posted by dividuum — Fri Apr 05, 2024 9:15 pm