h6. DPMS State RISC OS supports the use of "Display Power Management Signaling":https://en.wikipedia.org/wiki/VESA_Display_Power_Management_Signaling to put displays into low-power states when screen savers or other machine sleep states are active. The OS generally uses numeric values to represent DPMS states, which map to the different VESA-defined states as follows: |_<^. Numeric value |_<^. VESA state |_<^. HSync & VSync state | |<^. 0 |<^. On |<. HSync & VSync active | |<^. 1 |<^. Stand-by |<. HSync gated | |<^. 2 |<^. Suspend |<. VSync gated | |<^. 3 |<^. Off |<. HSync & VSync gated |