Hi, > b) to include new drivers (for old hardware) if they arrive (probably happens rarely but there can be). > I know of at least one driver which won't be able to support DRM.... Hmm? I seriously doubt that. There is always the option to use a shadow framebuffer, then convert from standard drm formats to whatever esoteric pixel format your hardware expects. Been there, done that. Have a look at the cirrus driver. The physical hardware was designed in the early 90-ies, almost 30 years ago. These days it exists in virtual form only (qemu emulates it). Thanks to the drm driver it runs wayland just fine even though it has a bunch of constrains dictated by the hardware design. take care, Gerd