Re: [Discuss-gnuradio] B200mini USB 3.0 Detection Issues

On 02/05/2016 01:40 PM, Michael Skaggs wrote:
> 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
>
Do you know what type of USB-3.0 controller you have on the laptop?
Have you tried on another computer?



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