Bi-Fury on Debian with cgminer - Recognised, but not mining. Help.

Hi,

I've followed many of the guides in this forum and found them very helpful, however I'm still unable to mine with my Bi-Fury. I'm hoping for some guidance.

I'm mining with cgminer 3.11 on Debian. All my block erupters are still fine, but my Bi-Fury is not. It shows up in Cgminer as a BX device and also shows the temperature, but it will not mine. The hash rate is 0.0.

I have upgraded the firmware, but it has not helped. I'm hoping I've done it correctly. I must be doing it partially correct, cause I can access the device and copy the firmware.bin file. I'm just not sure if the process is 100% successful.

Prior to updating, when I plugged in my Bi-Fury, the green LED would illuminate and stay on. Since upgrading, the green and red lights briefly flash, but then no lights come back on until cgminer picks up the Bi-Fury. Then the green light stays on even though it's not actually mining. Is this normal?

I've tried upgrading in Windows and in Linux, neither works. I originally tried mining with cgminer on Win7, but couldn't get the Bi-Fury to come up in cgminer at all.

My mining rig is an older Acer laptop. I've tried plugging the Bi-Fury directly into a USB port and through two different powered USB hubs. None of the ports are USB 3.0.

Any help would be greatly appreciated.

Thanks