Set the suspend time to 15 seconds, then wait. The monitor can be turned off successfully when the interval reached, but if waiting for a longer time, for example, 10 minutes, the monitor is turned on automatically, although with a lower brightness.
The monitor should be always stayed in black after the suspend time reached, until an event wakes it up.
On ARM Versatile Express A9 board with Linaro Android Jelly Bean image:
https:/ /android- build.linaro. org/builds/ ~linaro- android/ vexpress- jb-gcc47- armlt-tracking- open/#build= 152
Set the suspend time to 15 seconds, then wait. The monitor can be turned off successfully when the interval reached, but if waiting for a longer time, for example, 10 minutes, the monitor is turned on automatically, although with a lower brightness.
The monitor should be always stayed in black after the suspend time reached, until an event wakes it up.