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Peter Raeves
Asked: 2014-06-04 03:49:15 +0800 CST

USB recognized, but not usable

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I booted my computer today and I don't know what happened, but all my USB devices aren't working anymore (webcam, mouse, keyboard, external drive). I can see them being connected through sudo lsusb, but Ubuntu doesn't let me use them. How do I get them back?

sudo lsusb

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 004: ID 05ac:129e Apple, Inc. Ipod Touch 4.Gen
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 046d:08f0 Logitech, Inc, QuickCam Messenger
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 016: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

dmesg

usb 3-5: new low-speed USB device number 6 using ohci-pci
usb 3-5: New USB device found, idVendor=093a, idProduct=2510
usb 3-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 3-5: Product: USB OPTICAL MOUSE
usb 3-5: Manufacturer: PIXART

lsmod

Module Size Used by
pata_acpi    13038 0
pata_atiixp 13271 1
ahci 25819 0
libahci 32168 1 ahci
r8169 67581 0
mii 13934 1 r8169

lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 232.9G 0 disk
   sda1 8:1 0 167.7G 0 part /
usb

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