@1aceEric Engestrom πŸ’™ @svenSven Peter we got it hacked together for a demo. If it works it seems to be stable but hotplug, suspend and dpms might have issues.

This is using out of band kms hotplug events and a dead end. I have a partial conversion to an architecture using drm_bridges which I think is sound design going forward. The annoying part is that I can’t reuse as much common kms code as I hoped. Apple’s firmware interface abstracts all that away and the only independent parts are HPDs for usb-c/hdmi, DP tx phys and mux controls to select the phy input.

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