Hi all. When I execute “sudo systemctl suspend” on my 2GB Nano DevKit, I get the error:
Failed to suspend system via logind: Sleep verb not supported
A search has brought me to this solution but my nano still cannot suspend. I am not sure if changing ODMDATA was not successful or 2GB DevKit does not support suspending to RAM.
The output of “ls /sys/firmware/devicetree/base/chosen/plugin-manager/odm-data/” is:
disable-pmic-wdt enable-debug-console enable-utmi1-snps no-battery
disable-uart-over-jack enable-tegra-wdt name normal-build
I would really appreciate if someone could show me how to fix this.
hello herdem09,
may I know which JetPack release you’re working with?
according to Power Management for Jetson Nano and Jetson TX1 Devices,
could you please have an alternative ways for entering deep sleep?
for exmaple, $ sudo bash -c "echo mem > /sys/power/state"
thanks
Hello there,
JetPack version is:
4.5-b129
Also I am getting below error when trying alternate method for suspend mode:
bash: line 0: echo: write error: Invalid argument
Thank you for your help.
hello herdem09,
could you please share all available power states of 2GB Nano DevKit,
for example, $ cat /sys/power/state
Hi,
The result is:
freeze
There is a directory /sys/power/suspend with files suspend_time and resume_time. Content of both files is:
0ms
hello herdem09,
FYI, we’re remove SC7 for the Nano 2GB, so it’s expect that suspend to RAM is not working.
Hi JerryChang. Thank you for your help. Is there anything I can do to get the online documents updated to reflect this change? I have made my purchase decision on Nano since I had to have suspend mode due to battery powered operation. I would not want others to do the same mistake.
Thanks again.
hello herdem09,
we’re updating the documentation of Power Management chapter.
Deep sleep is not supported on Jetson Nano 2GB devices.
please expect this will be include to the next public release (r32.6) developer guide.
thanks