Arch Linux

ic01

Member

Registered: 2011-12-05

Posts: 2

USB errors displayed on booting

Hi all

I've recently installed Arch for the first time and after a week am really liking the distro.  I have noticed a number of USB errors flying by every time I boot up the system and decided to check these out using

dmesg | grep usb

the result is as follows

[    1.337742] usbcore: registered new interface driver usbfs
[    1.337816] usbcore: registered new interface driver hub
[    1.340114] usbcore: registered new device driver usb
[    1.686902] usb 1-2: new high speed USB device number 2 using ehci_hcd
[    2.323453] usb 5-1: new full speed USB device number 2 using uhci_hcd
[    2.440107] usb 5-1: device descriptor read/64, error -71
[    2.660123] usb 5-1: device descriptor read/64, error -71
[    2.870087] usb 5-1: new full speed USB device number 3 using uhci_hcd
[    2.986809] usb 5-1: device descriptor read/64, error -71
[    3.206762] usb 5-1: device descriptor read/64, error -71
[    3.416868] usb 5-1: new full speed USB device number 4 using uhci_hcd
[    3.830124] usb 5-1: device not accepting address 4, error -71
[    3.936778] usb 5-1: new full speed USB device number 5 using uhci_hcd
[    4.350116] usb 5-1: device not accepting address 5, error -71
[    6.469273] input: USB 2.0 Camera as /devices/pci0000:00/0000:00:1d.7/usb1/1-2/1-2:1.0/input/input7
[    6.471232] usbcore: registered new interface driver uvcvideo
[   45.536763] usb 5-1: new full speed USB device number 6 using uhci_hcd
[   45.653421] usb 5-1: device descriptor read/64, error -71
[   45.873568] usb 5-1: device descriptor read/64, error -71
[   46.083491] usb 5-1: new full speed USB device number 7 using uhci_hcd
[   46.200104] usb 5-1: device descriptor read/64, error -71
[   46.420104] usb 5-1: device descriptor read/64, error -71
[   46.630105] usb 5-1: new full speed USB device number 8 using uhci_hcd
[   47.043425] usb 5-1: device not accepting address 8, error -71
[   47.150078] usb 5-1: new full speed USB device number 9 using uhci_hcd
[   47.563406] usb 5-1: device not accepting address 9, error -71

lsusb produces

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 13d3:5108 IMC Networks

Does anyone have any ideas what these errors mean or what I should do to eliminate them.

Thanks in advance.

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: USB errors displayed on booting

Do you have 'quiet' on your kernel command line in grub?

kernel /vmlinuz-linux root=/dev/disk/by-uuid/bf1d191b-0f0d-4961-bd67-4d023a2e5873 quiet ro

I don't know why are you getting these errors and whether you can safely ignore them.

ic01

Member

Registered: 2011-12-05

Posts: 2

Re: USB errors displayed on booting

Thanks karol.  I lack the quiet option but I am a little confused.  Doesn't this option simply turn off/stop the messages streaming up the screen as you boot?

Thanks

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: USB errors displayed on booting

Doesn't this option simply turn off/stop the messages streaming up the screen as you

Yes, exactly. Unfortunately I can't help you with the cause of the problem.