Hello,
I recently started working with the Ettus B200mini board in GNU Radio
and I appear to be having issues with the detection of USB 3.0. The
system I am working on is a Dell Latitude E6530 with Ubuntu 14.04. I
just yesterday updated to the latest version of GNU Radio and UHD by
running the build-gnuradio script.
The issue I am having is when I plug the B200mini into one of the USB
3.0 ports, it is only detected by GNU Radio Companion as USB 3.0 maybe
1 out of 20 times I plug it in, sometimes less often. When it detects
as USB 3.0 it is a full speed connection with no issues, when detected
at USB 2.0, it is much slower, but appears to work fine.
I am almost 100% certain this is an issue with the B200mini only. I
have two of the boards with two different cables, both of them have
the detection issue. I also have tried using a B210 multiple times on
the laptop with no issues. The B210 never once detected as USB 2.0
when I plugged it in and programmed it through GRC. "lsusb" also
detects the USB 3.0 root hub every single time.
Does anyone have any idea what might be going on?
Thanks in advance,
Michael