Hi folks, sorry for the late reply...
On Mon, Feb 27, 2017 at 06:17:42PM +0900, Michel Dänzer wrote: > The client side has no impact on which drivers Xorg loads, or when. It > looks like simply neither xserver-xorg-input-libinput nor > xserver-xorg-input-evdev is installed. the problem turned out to be this one. Once I installed xserver-xorg-input-all, everything worked fine. But I have no idea how I had arrived at this situation with the X server being installed, but not any of the input drivers, because the xserver-xorg package (installed) depends on one of those input packages. That's also why it did not occur to me to look at this problem. I can also say for sure that nobody but me is fiddling with the machine in question, at least not yet. Sorry for the noise. Thanks, --Toni++
