[atlas] Proble rebooting several times a day.

On Wed, Feb 22, 2012 at 4:16 PM, David Precious <davidp at preshweb.co.uk>wrote:

> On Wed, 22 Feb 2012 15:23:58 +0100
> Lukasz Trabinski <lukasz at trabinski.net> wrote:
> > Thank's. Anyway I will try buy for 1 euro external usb power supply
> > for my probe :)
>
> That's probably the easiest and most reliable way :)
>
> In the meantime, you could always check whether your USB ports are set
> to automatic power management:
>
>  [davidp at columbia:~]$
>  cat /sys/bus/usb/devices/usb*/power/level
>  auto
>  auto
>
> If you get "auto", you could try forcing them to stay on - e.g. as root:
>
>  echo on > /sys/bus/usb/devices/usb1/power/level
>
> Worth a try at least, if you're interested.
>
> Of course, you'd need to figure out which "usb$n" to use, depending on
> which port it's connected to - or just set them all to on:
>
>  for file in /sys/bus/usb/devices/usb*/power/level; \
>      do echo "on" > $file; done
>
> Whether the above will actually make a difference, I don't know, but
> could be worth a try if you're curious.  If you do, report back whether
> it helped, so everyone knows if that's a potential fix for anyone else
> who experiences the same problem :)
>
>
>
It may be worth to write down this tip on the Atlas FAQ, just in case other
Linux users are experiencing random reboots and want to start
troubleshooting bottom-up.

Just my two cents

Best,


> --
> David Precious ("bigpresh") <davidp at preshweb.co.uk>
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>
>
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