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

Magicfulness
Member
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I've found https://bbs.archlinux.org/viewtopic.php?id=114355 but it's six years old and suggests an out of date kernel as the problem(which I really doubt).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

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

seventh
Member
Registered: 2017-02-07
Posts: 70

Re: USB 3.0 doesn't detect devices

Maybe this here: https://bbs.archlinux.org/viewtopic.php?id=224011

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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