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Table of Contents
How to turn off your monitor (C1)
TODO
- Ubuntu : Available with 3.10.96-161 (Aug 29, 2016) or a higher version
- Android : Available with Android 4.4.2 v3.1 (Jul 01, 2016) or higher version including Android 5.1.1
How to activate monitor off on Ubuntu
Set monitor on/off option using boot.ini
# 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}
Set standby time to enter monitor off using power management setting menu
[system] -> [preference] -> [look and feel] -> [Screensaver] [Power Management] tab in the bottom area of this menu
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 of Android release version as following.
# Overscan offset configuration # All offsets are zero and can be tuned by manual or ODROID Utility setenv overscan_top "0" setenv overscan_left "0" setenv overscan_bottom "0" setenv overscan_right "0" setenv suspend_hdmiphy "true" # set "true" of "1" to activate monitor off option led_blink=1 # Boot Arguments setenv bootargs "${rootopt} ${consoleopt} hdmimode=${hdmimode} hdmitx=${cecconfig} vout=${vout_mode} disablehpd=${disablehpd} logo=${logoopt} ${androidopt} ${selinuxopt} suspend_hdmiphy=${suspend_hdmiphy} led_blink=${led_blink} max_freq=${max_freq} maxcpus=${maxcpus}"