On Wed, Feb 22, 2012 at 4:16 PM, David Precious
<davidp@preshweb.co.uk> wrote:
On Wed, 22 Feb 2012 15:23:58 +0100
Lukasz Trabinski <
lukasz@trabinski.net> wrote:
> Thank's. Anyway I will try buy for 1 euro external usb power supply
> for my probe :)
In the meantime, you could always check whether your USB ports are set
to automatic power management:
[davidp@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,