Public bug reported:
After upgrading udev and the kernel from Ubuntu 12.04 to Quantal (linux-
image-3.5.0-5-generic 3.5.0-5.5), USB devices no longer work. For
example, I am now typing this on the built-in keyboard of the machine
(ThinkPad X220) but the attached Microsoft USB keyboard doesn't work.
Nor does the attached USB mouse.
When I look in syslog I see that the devices are detected. For example,
on plugging in the keyboard the following messages appear.
Jul 25 16:01:46 tenerife kernel: [ 2465.144251] usb 1-1.5.4: new low-speed USB
device number 18 using ehci_hcd
Jul 25 16:01:46 tenerife kernel: [ 2465.272057] usb 1-1.5.4: New USB device
found, idVendor=045e, idProduct=00dd
Jul 25 16:01:46 tenerife kernel: [ 2465.272067] usb 1-1.5.4: New USB device
strings: Mfr=1, Product=2, SerialNumber=0
Jul 25 16:01:46 tenerife kernel: [ 2465.272073] usb 1-1.5.4: Product: Comfort
Curve Keyboard 2000
Jul 25 16:01:46 tenerife kernel: [ 2465.272077] usb 1-1.5.4: Manufacturer:
Microsoft
Jul 25 16:01:46 tenerife mtp-probe: checking bus 1, device 18:
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5.4"
Jul 25 16:01:46 tenerife mtp-probe: bus: 1, device: 18 was not an MTP device
(I first tried apport-bug but it fails with a networking error even though I
have Internet access, as you can see.)
linux 3.5.0-5-generic
udev 175-0ubuntu10
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1028924
Title:
USB devices do not work
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