Quote from: onichan88 on July 16, 2013, 09:03:10 PM

Hello, i've a little problem, i'll try to explain.
I'm using rasp pi, and installed cgminer 3.3.1
I have 1 block erupter in a hub usb powered and a lancelot from blackarrow.

I've been using my block erupter a lot of days without problems.

Since I installed my lancelot, I tried with sudo cgminer and it starts working, but it seems the block erupter gets the first work, after that it gets in standby meanwhile the lancelot works fully. A 60 seconds the cgminer says the block erupter gets sick.

What can I do? Do you need something abot logs?

Please help!
Thanks in advantage

I've had a similar problem with cgminer from github on x86_64 debian 7.1 (wheezy) trying to get two AsicMiner USB eruptors to work (via Satechi 10-Port 5A USB 3.0 powered hub http://www.amazon.com/gp/product/B00B9KOCYA).

The setup works just fine with a single USB eruptor (either of them). When two are plugged in it behaves as you describe where the USB eruptors will each mine for a bit and then drop into standby mode (solid green LED) for a bit before starting up again. No errors in dmesg or anywhere. The effect for me was that mining with a single eruptor would give 330MH/s, but mining with two would give 215MH/s.

I finally solved this yesterday by downgrading to cgminer 3.1.1 (had to compile from source because libraries were missing in debian 7.1). They now both hash at full speed.