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USB ports suddenly stopped working on Ubuntu 18.10 after long time of normal usage. lsusb command show nothing. When I boot system in recovery mode usb ports works normal. Can anyone help me ?

Update
I found some errors in dmesg

[ 1.040065] xhci_hcd 0000:00:14.0: xHCI Host Controller
[ 1.040071] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[ 1.041254] xhci_hcd 0000:00:14.0: hcc params 0x20007fc1 hci version 0x110 quirks 0x0000000000009810
[ 1.041262] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
[ 1.041264] xhci_hcd 0000:00:14.0: No msi-x/msi found and no IRQ in BIOS
[ 1.041268] xhci_hcd 0000:00:14.0: startup error -22
[ 1.041271] xhci_hcd 0000:00:14.0: USB bus 1 deregistered
[ 1.041286] xhci_hcd 0000:00:14.0: init 0000:00:14.0 fail, -22

Michał Misiewicz
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1 Answers1

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I got the same error in syslog, it's possible we got the same problem.

my problem

I was trying to block some annoying messages in syslog, and I add in grub.cfg:

pci=nomsi

Unfortunately the device generating the annoying messages was the USB HUB, since that gives the 'error -22` :

    [ 1.041264] xhci_hcd 0000:00:14.0: No msi-x/msi found and no IRQ in BIOS
    [ 1.041268] xhci_hcd 0000:00:14.0: startup error -22

my solution

I've removed pci=nomsi from /boot/grub/grub.cfg

Ivan Buttinoni
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