Reply 20 of 28, by mkarcher
rasz_pl wrote on 2022-08-18, 12:04:scruit wrote on 2022-08-17, 11:25:- There are ps/2 keyboards that can work with XT adapters because, although they natively use ps/2 protocol, they can detect and communicate on XT protocol
never seen one able to switch automagically
People claim that at least early series of the IBM Model M keyboard that came with a DIN-plug cable could autodetect XT/AT. As the keyboard cable is detachable, it is likely that they didn't redesign the keyboard when they started shipping them with PS/2-plug cables. So I expect that early PS/2-type model M keyboard (like ones shipped with the IBM PS/2 Model 30) do support the XT protocol.