Power management of the display

Display Power Management Signaling (DPMS) allows you to control the power  of compliant HDMI and DVI displays without pressing a button on the display or using its remote control.

DPMS relies on the following four power states:

  • on
  • sleep
  • suspend
  • active off

When you enable DPMS control in Preferences > Video > Video Monitor, Icon attempts to manage the power state of the display. Set the DPMS mode to one of the following values:

OnAlways attempts to turn the display off.
OffNever attempts to turn the display off.
AutoAttempts to turn the display off if the display indicates support for the sleep or suspend power states.
IntelligentAttempts to turn the display off if the display indicates support for the sleep, suspend, or active off states.

To test whether your monitor supports DPMS, complete these steps:

  1. Disable CEC.
  2. Set DPMS Mode to On.
  3. Put your Icon to sleep.
  4. If the display does not turn off, DPMS is not supported. Set DPMS Mode to Off.
  5. If the display eventually turns off, wake Icon.
  6. If the display turns on, DPMS is supported. Leave DPMS enabled.
  7. If the display does not turn on, try using the combination of CEC and DPMS to control the display's power state: use CEC to wake the display and DPMS to put the display to sleep.