Richard Hughes wrote: > When I played with this on the HP DreamColor, I just re-requested the > EDID using DDC/CI and compared it to the drm EDID DM5 to match i2c > devices to xrandr devices. I'm hoping we can do something more sane > with wayland. That's certainly a workaround, but is it a good idea to be communicating i2c to an unknown device, hoping that you don't upset something you know nothing about ? [A similar quandary exists in automatically identifying serial instruments. One can certainly identify instruments on a serial port with a suitably crafted interrogation sequence, but will that upset a device you aren't intending to talk to ? ] Graeme.