Bug#859725: x11-common: Each time my screen standby, system crash

[Alexandre <ar.community@devnco.fr>]

Package: x11-common
Version: 1:7.7+18
Severity: grave
Justification: causes non-serious data loss

Dear Maintainer,

Just when my screen go in standby (after 2minutes for examples) each time my
system crash.

If i want get back my computer i need to press power button to reboot.

Thank you



-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.10.0-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages x11-common depends on:
ii  lsb-base  9.20161125

x11-common recommends no packages.

x11-common suggests no packages.

-- no debconf information