Bug#870121: mate-power-manager: sometimes hits not-reached assertion on startup

[brian m. carlson]

Package: mate-power-manager
Version: 1.16.2-1
Severity: important

mate-power-manager is not starting when I log in anymore.  It logs the
following to ~/.xsession-errors.

  **
  ERROR:gpm-kbd-backlight.c:342:gpm_kbd_backlight_on_dbus_signal: code should not be reached

Running it by hand the first time produced the same result.  Running a
second time caused it to start.

I believe this issue is preventing my screen from locking when I suspend
my laptop.  I've seen that issue on two separare Thinkpad X1 Carbon
laptops, both at home and at work.  On the work laptop, the machine does
not suspend at all.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'stable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.11.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mate-power-manager depends on:
ii  dbus-user-session [default-dbus-session-bus]    1.11.16+really1.10.22-1
ii  dbus-x11 [dbus-session-bus]                     1.11.16+really1.10.22-1
ii  libatk1.0-0                                     2.24.0-1
ii  libc6                                           2.24-12
ii  libcairo-gobject2                               1.14.10-1
ii  libcairo2                                       1.14.10-1
ii  libcanberra-gtk3-0                              0.30-3
ii  libcanberra0                                    0.30-3
ii  libdbus-1-3                                     1.11.16+really1.10.22-1
ii  libdbus-glib-1-2                                0.108-2
ii  libgdk-pixbuf2.0-0                              2.36.5-2
ii  libglib2.0-0                                    2.52.3-1
ii  libgnome-keyring0                               3.12.0-1+b2
ii  libgtk-3-0                                      3.22.17-1
ii  libmate-panel-applet-4-1                        1.16.2-1
ii  libnotify4                                      0.7.7-2
ii  libpango-1.0-0                                  1.40.6-1
ii  libpangocairo-1.0-0                             1.40.6-1
ii  libupower-glib3                                 0.99.5-2
ii  libx11-6                                        2:1.6.4-3
ii  libxext6                                        2:1.3.3-1+b2
ii  libxrandr2                                      2:1.5.1-1
ii  libxrender1                                     1:0.9.10-1
ii  mate-notification-daemon [notification-daemon]  1.16.1-1
ii  mate-power-manager-common                       1.16.2-1
ii  notification-daemon                             3.20.0-1+b1
ii  policykit-1                                     0.105-18
ii  systemd                                         234-2
ii  upower                                          0.99.5-2

mate-power-manager recommends no packages.

Versions of packages mate-power-manager suggests:
ii  mate-polkit  1.16.0-2

-- no debconf information

-- 
brian m. carlson / brian with sandals: Houston, Texas, US
https://www.crustytoothpaste.net/~bmc | My opinion only
OpenPGP: https://keybase.io/bk2204
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