A20-OLINUXINO-MICRO DEBIAN Suspend or hibernate mode

[dwokke]

Hi all,

I'm trying to get the A20-Olinuxino-micro board in suspend mode. I'm using pm-suspend. The board turs off the display but via the uart0 port I kan still access the board and power consumption does not show any difference. I would expect it to be lower, but seems to be the same.
I cannot get the board out of suspend with any of the buttons.
Questions:
1. How can I get the board to resume?
2. Is it possible to lower power consumption to a minimum in suspend mode?

Any help is appreciated.

Best regards
dwokke

[JohnS]

Does your version of debian even support that (on A20)?

John

[dwokke]

Hi JohnS,

Not sure. I'm using Debian 7.0 which is supplied by Olimex on the A20-Debian-SD.
I installed the pm-utils and use sudo pm-suspend.

I checked with "sudo pm-is-supported --suspend && echo $?" This gives me 0 as result which implies suspend can be used.

My main issue is that I need to proof to my custimer that the A20 can be put in suspend mode to save as much power as posible for their application (80% idle time).

If there is another way I would be thankful if some one coud advice me.

Best regards dwokke

[MBR]

To see if the system support suspend (or any other power state), you can look into the /sys/power/state file for supported states (the disk means hibernation).