====== How to turn off your monitor ======

<WRAP center round important>
  * Ubuntu : Available with 3.14.79-82 (Sep 19, 2016) or higher version
  * Android : Available with v1.9 or higher version
</WRAP>

===== How to activate monitor off on Ubuntu =====

== Set monitor on/off option using boot.ini ==

<code>
# Monitor output
# Controls if HDMI PHY should output anything to the monitor
setenv monitor_onoff "true" # true or false

# Boot Arguments
setenv bootargs ${bootargs} monitor_onoff=${monitor_onoff}
</code>

== Set standby time to enter monitor off using power management setting menu ==
<code>
[system] -> [preference] -> [look and feel] -> [Screensaver] 
[Power Management] tab in the bottom area of this menu
</code>
{{:en:c1_screensaver.png?650|}} {{:en:c1_pm_display.png?650|}}

For example, if you set **screensaver time** to 1 minute and **display off time** to 5 minutes in Power Management tab,

- in 1 minute, display will be turned off and screensaver is activating but, monitor is still alive.

- in 5 minutes, monitor will be turned off.
===== How to activate monitor off on Android =====

== Set monitor on/off option using boot.ini ==
The env description, "suspend_hdmiphy" is included in boot.ini as following.

You should set **suspend_hdmiphy** to **'true' or '1'** to activate monitor off option.
<code>
# Monitor on/off option
setenv suspend_hdmiphy "true" # set "true" of "1" to activate monitor off option

# Boot Arguments
setenv bootargs ${bootargs} syspend_hdmiphy=${suspend_hdmiphy}
</code>

== Set standby time to enter monitor off ==
You can set the standby time to enter sleep and monitor off using display setting menu.
<code>
[Menu] -> [Settings] -> [Device] - [Display] -> [Sleep]
Set sleep time
</code>

{{:en:c1_display.png?650|}}  {{:en:c1_sleep.png?650|}}

And then, please turn off **Daydream** option.

{{:en:display_daydream.png?650|}} {{:en:daydream.png?650|}}

Setup is complete.

For example, if you set the sleep time to 5 minutes, your monitor will be turned off in 5 minutes.