Am Dienstag, den 05.09.2017, 13:52 -0700 schrieb Shaya Potter:
> I've added a USB 3.0 card that should support super speed to a server I
> have, but it's not working at super-speed speeds for the external hard
> drives I connect, and a having a hard time diagnosing why (hardware
> issue/quirk? driver issue?)
>
> Before installing the card, xhci wasn't ever used, now it is, so that
> makes it clear that it is a usb 3.0 card. It's a 4 port card, but what's
> weird is that the card seems to expose 2 USB hubs with 4 ports.
It should do so. XHCI always provides two virtual controllers as the
concept of companion controllers for lower speeds has been abandoned.
> I have tested these drives in other computers (windows) and they seemed to
> work at super-speed speeds, plan is to try a different usb 3.0 card as
> well in this machine which I also know worked in windows at super-speed
> speeds, but trying to understand f there are other ways to debug it.
>
> i.e. even lsusb -v shows that these devices should be capable of
> super-speed speeds
This is an issue with the XHCI driver. Please switch on dynamic debugging
for it.
Regards
Oliver
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