>I'm afraid that the only answer which I have to these questions >is not helpful, but in my experience it is true: "firmware sucks". So FWIW there is a Dell 2-in-1 that has been conflated into this same issue. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1822394 Something that is confusing to me is that on the Windows side all these machines use the same Intel driver for this infrastructure no matter the OEM. So they can't possibly be putting in quirk specific stuff in the driver side can they? It has to make you wonder if some baseline assumptions made in the driver early on around tablet mode support are completely false.
