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#1 2017-08-16 16:38:08

Registered: 2017-08-16
Posts: 2

USB 3.0 doesn't detect devices

I've had this problem before on other distros, I do have IOMMU and EHCI and XHCI enabled in my bios. I vaguely recall this being a grub problem, but am not sure. I can guarantee that the usb3.0 ports o give power (my mouse lights up), and it works on my bios (which is the type that lets you use your mouse).

I've found but it's six years old and suggests an out of date kernel as the problem(which I really doubt).

Thanks for the help.

My lsusb output is weird so I'm not sure if it's being detected:

Bus 003 Device 001: ID 1d6b:0002 
Bus 007 Device 002: ID 0556:0001 
Bus 007 Device 001: ID 1d6b:0001 
Bus 006 Device 001: ID 1d6b:0001 
Bus 002 Device 001: ID 1d6b:0002 
Bus 005 Device 002: ID 0a12:0001 
Bus 005 Device 001: ID 1d6b:0001 
Bus 001 Device 001: ID 1d6b:0002 
Bus 004 Device 002: ID 0461:4d8a 
Bus 004 Device 003: ID 04d9:a070 
Bus 004 Device 001: ID 1d6b:0001 

lsmod | grep ehci

ehci_pci               16384  0
ehci_hcd               77824  1 ehci_pci
usbcore               208896  12 usbhid,snd_usb_audio,usb_storage,ehci_hcd,ohci_pci,xhci_pci,snd_usbmidi_lib,btusb,uas,ohci_hcd,xhci_hcd,ehci_pci

lsmod | grep xhci

xhci_pci               16384  0
xhci_hcd              172032  1 xhci_pci
usbcore               208896  12 usbhid,snd_usb_audio,usb_storage,ehci_hcd,ohci_pci,xhci_pci,snd_usbmidi_lib,btusb,uas,ohci_hcd,xhci_hcd,ehci_pci


#2 2017-08-17 04:37:50

Registered: 2017-02-07
Posts: 73

Re: USB 3.0 doesn't detect devices

Maybe this here:

SOLUTION: The fix was to enable IOMMU on the motherboard and to add "iommu=soft" as a kernel parameter in grub.

Last edited by seventh (2017-08-17 04:38:40)


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