Quote from: usao on December 04, 2017, 07:11:45 PM

Quote from: der_wasi on December 04, 2017, 06:57:02 PM

Quote from: usao on December 04, 2017, 06:51:32 PM

My 2Pac has been running well for several months. However, lately it has started to mis-behave.
It will run for 1-2 minutes, and then disappear. It requires me to unplug the USB port and re-plug it back into a different port in order for it to get recognized again.
Plugging into the same port does not cause the 2Pac to be seen, it must be into a different port.

If one port is unusable, how do you make it usable again? I assume it´s a hub? Do you power it off? Or restart the system?

Im running on a RPI3, so it has 4 USB ports.
All I do is stop cgminer with a ^C, unplug and replug into a different port and restart cgminer.
No reboot or power cycle needed.

Not related to your problem but thought I'd mention that its possible to 'reset' the USB ports via the command line without replugging. I don't have it to hand but it's mentioned over on the Pi forums with some discussion and pictures of different cmds to reset different ports. Off the top of my head you can reset 2 ports at a time (top pair or bottom pair) or all 4 at once. Quite handy for remote management.