systemctl --user status unity-gtk-module.service
● unity-gtk-module.service - Unity GTK Module Environment variables
Loaded: loaded (/usr/lib/systemd/user/unity-gtk-module.service; disabled; vendor preset: enabled)
Active: active (exited) since mer 2016-08-31 13:26:37 CEST; 4min 56s ago
Process: 12376 ExecStart=/bin/sh -ec GTK_MODULES="$${GTK_MODULES:+$GTK_MODULES:}unity-gtk-module"; dbus-update-activation-environment -
Main PID: 12376 (code=exited, status=0/SUCCESS)
CGroup: /user.slice/user-1000.slice/user@1000.service/unity-gtk-module.service
ago 31 13:26:37 ubuntu-vmware systemd[6159]: Starting Unity GTK Module Environment variables...
ago 31 13:26:37 ubuntu-vmware sh[12376]: dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge:unity-gtk-module
ago 31 13:26:37 ubuntu-vmware systemd[6159]: Started Unity GTK Module Environment variables.