Arch Linux

Lezkus

Member

Registered: 2015-02-23

Posts: 15

USB 3.0 not working

It looks like the USB 3.0 is not being detected. USB 2.0 works like a charm though.
lsusb  throws

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 138a:0097 Validity Sensors, Inc.
Bus 001 Device 004: ID 13d3:5682 IMC Networks
Bus 001 Device 003: ID 8087:0a2b Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

and lsusb -t

> lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
    |__ Port 7: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
    |__ Port 7: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
    |__ Port 8: Dev 4, If 1, Class=Video, Driver=uvcvideo, 480M
    |__ Port 8: Dev 4, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 9: Dev 5, If 0, Class=Vendor Specific Class, Driver=, 12M

which makes me believe that it is not being detected properly, but I do not know how to debug this any further.
dmesg does not show any message when a device is conected to the port either.

dviktor

Member

From: Moscow

Registered: 2015-10-18

Posts: 162

Re: USB 3.0 not working

please post the output of dmesg when you inserting 2.0 and 3.0 devices, respectively

radiomike

Member

Registered: 2013-12-19

Posts: 75

Re: USB 3.0 not working

Also dmesg filtered for usb and xhci from boot.

It's likely that what you are seeing is the result of the usb bus autosuspending. If it's not resuming on insertion of a device you should look at disabling this. How you  do this will depend on whether you use any power management tools like TLP, laptop-mode and powertop.