

xset dpms force on
xset s reset
xscreensaver-command -deactivate
gnome-screensaver-command --deactivate
mate-screensaver-command --poke
xfce4-screensaver-command --poke
dbus-send [...] org.freedesktop.ScreenSaver.SimulateUserActivity
dbus-send [...] org.freedesktop.ScreenSaver.Inhibit
dbus-send [...] org.gnome.ScreenSaver.SetActive false