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How to turn off monitor
- Ubuntu : Available with the current version. (The exact release version will be specified here.)
- Android : Available with Android v1.9 or higher version
How to activate monitor off on Ubuntu
Set monitor on/off option using boot.ini
# setting "true" or "1" can activate monitor off option
setenv monitor_onoff "true"
# 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] screensaver after 1 minute display sleep after 5 minutes (Power management)
Then, your monitor will be turned off in 5 minutes.
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}"
Set standby time to enter monitor off
You can set the standby time to enter sleep and monitor off using display setting menu.
settings -> display -> sleep -> set sleep time
For example, if you set the sleep time to 5 minutes, your monitor will be turned off in 5 minutes.
