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:
| On | Always attempts to turn the display off. |
| Off | Never attempts to turn the display off. |
| Auto | Attempts to turn the display off if the display indicates support for the sleep or suspend power states. |
| Intelligent | Attempts 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:
- Disable CEC.
- Set DPMS Mode to On.
- Put your Icon to sleep.
- If the display does not turn off, DPMS is not supported. Set DPMS Mode to Off.
- If the display eventually turns off, wake Icon.
- If the display turns on, DPMS is supported. Leave DPMS enabled.
- 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.