https://bugzilla.redhat.com/show_bug.cgi?id=2025224
--- Comment #3 from Peter Hutterer peter.hutterer@redhat.com ---
now the command hangs - expects input ? When i type anything, nothing happens anymore, no matter, which key on the keyboard i hit. I press Ctrl-C then to get back the prompt.
That tool records events coming out of the kernel, from the given device. If it doesn't see any events it means nothing comes out of the kernel so userspace can't handle those events either. If it broke with a recent update, try an older kernel because right now that looks to be the issue (if it was a remapping issue in udev you'd still see the scancodes come through). Might be worth checking the other event nodes just in case but right now, this looks like a kernel regression.