Screen backs to light after dimmed in suspend mode on vexpress A9 Jelly Bean.

[Botao]

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.

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This issue is observed on following images:
https://android-build.linaro.org/builds/~linaro-android/vexpress-jb-gcc47-armlt-tracking-open/#build=152
https://android-build.linaro.org/builds/~linaro-android/vexpress-jb-gcc47-armlt-tracking-open/#build=158
https://android-build.linaro.org/builds/~linaro-android/vexpress-jb-gcc47-armlt-tracking-open/#build=167
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp-13.01-release/#build=1
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=179
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=185
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=191
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp-13.02-release/#build=2
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=220
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp-13.03-release/#build=1
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=250
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp-13.04-release/#build=5
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=291
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp-13.05-release/#build=2
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=325
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp-13.05-release/#build=2
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-13.06-release/#build=1
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-13.07-release/#build=2
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro/#build=59
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-4.3-13.08-release/#build=1
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro/#build=85
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-13.09-release/#build=6
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro/#build=127
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-13.10-release/#build=2
https://android-build.linaro.org/builds/~linaro-android/vexpress-lsk-13.10-release/#build=2

[Botao (botao-sun)]

On ARM Versatile Express A9 board with Linaro Android image:

https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp-13.05-release/#build=2

After suspend interval time reached, the screen can be dimmed, but can't completely turn to black. "Linaro" logo can still be seen on monitor.

[vishal (vishalbhoj)]

The landing team has no plans of adding support for suspend resume in the future.