Command to power cycle
pgf at laptop.org
Thu Sep 8 11:34:07 EDT 2011
> I saw the power cycle command on a previous thread. Not sure I would ever
> use that feature as it looks like a 'deeper' restart than just a 'reboot',
> and me being a lowly user, :-)
that command is equivalent to pulling the plug and removing the battery.
so yes, somewhat deeper than "reboot".
> But that's not why I'm calling out. I was wondering if you or James or
> someone knew if there is a terminal command that I can enter to cause an
> XO-1 to go to sleep, a very deep sleep. Like the one it goes into when you
> leave it alone for many hours. Why, you might ask? Well, the sisusb
> usb2vga adapters are very unreliable on 11-2 and beyond on the XO-1. There
> is an open ticket on this.
there's a command you can send to powerd which might do what you want:
sudo powerd-config =dark-suspend
we implemented this when we needed it for power measurement tests. i'm
not sure it's been tested recently, but it should still work.
> However, I've noticed that if I leave the machine alone for many hours, then
> wake it back up, the little gadget cranks up the external monitor like a
> charm as it restarts. I was kinda looking for a better work-around until
> the ticket gets fixed. Right now my workaround is to use an XO 1.5 for
> 11-2/11-3 external projector stuff, or 10-3 for XO-1 - both of which work
> flawlessly. Thought I might play with a command that can invoke these
> states instantly, rather than having to wait for hours, as then I'd have not
> only a viable workaround for now, but the logs might help to debug the
> issue, if such a quick coma/recovery also caused the beast to work (or
> Absolutely no urgency.
> part 2 text/plain 129
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paul fox, pgf at laptop.org
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