Bug#796957: sddm servive stop and then service starts make keyboard unresponsive => unable to login

[Eric Valette <eric2.valette@orange.com>]

Package: sddm
Severity: important

stopped/started sddm on a computer that was still working with sddm and found
the problem. Keyboard is connected via USB.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.1.6 (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF8, LC_CTYPE=en_US.UTF8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)