How to Shutdown Libre Computer AML-S905X-CC Le Potato

Tutorials & Guides
#1

There is no power button on the board. When shutdown is triggered, the default action of the board is to reboot. To avoid rebooting, run shutdown -H now which will halt the machine.

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#2

With Ubuntu 22.04, it appears that “shutdown -H now” still reboots?

#3

There’s a watchdog that causes the system to reboot after halting. You can disable it via echo 'V' | sudo tee /dev/watchdog before halting.

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#4

Seems like on Raspbian, the “Start Menu → Logout → Shutdown” should do that for you. Otherwise it’s the same as Reboot.

#5

We have already removed the watchdog so a standard sudo shutdown -H now will be sufficient in the images download since last month.

#6

With my Raspbian image, 2022-09-22-raspbian-bullseye-arm64+aml-s905x-cc.img.xz, sudo shutdown -H does in fact shut down the system and it stays powered off.

Using the GUI Shutdown reboots the system. Minor point, but it was surprising the first time it happened.

#7

How do I restart the device after shutdown? Just unplug and plug back in?

#8

Yes. The boards consume 1W anyway so there’s not much point to shutdown.

#9

Is it possible to disable the watchdog on images downloaded prior? Rather than having to “echo ‘V’ | sudo tee /dev/watchdog” every time I want to shut down the system?

#10

We have disabled the watchdog by default for images since November. If you had an image from before, simply use the libretech-flash-tool to re-flash the bootloader.

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#13

Does the watchdog workaround work also for Batocera or Lakka? It is impossible to shutdown the board, it is constantly rebooting, thanks!

F.

#14

For images not from our distro server, the watchdog stuff does not apply. You just need to halt instead of shutdown.

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#16

Any idea on how install halt on Batocera and Lakka?

Thanks :pray:

EDIT

Never mind on Batocera is already installed, simply it is impossible shutdown the board, I can only unplug the AC when exclusively the red light is on… :confounded: