The above solution did not work for me! I took my laptop to the service
center and I was told that the USB ports are not receiving enough power.
They (the USB ports) are supposed to be getting 5mA, but they were only
getting 2mA. A lsusb -v showed they are getting only 0mA !!!

[EMAIL PROTECTED]:~$ apt-cache policy apparmor
apparmor:
  Installed: 2.3+1289-0ubuntu4
  Candidate: 2.3+1289-0ubuntu4
  Version table:
 *** 2.3+1289-0ubuntu4 0
        500 http://ftp.u-picardie.fr intrepid/main Packages
        100 /var/lib/dpkg/status

[EMAIL PROTECTED]:~$ dmesg |grep usb
[    2.948965] usbcore: registered new interface driver usbfs
[    2.948999] usbcore: registered new interface driver hub
[    2.969571] usbcore: registered new device driver usb
[    3.643344] usb usb1: configuration #1 chosen from 1 choice
[    3.757259] usb usb2: configuration #1 chosen from 1 choice


[EMAIL PROTECTED]:~$ lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


still my pendrive or usb mouse does not work...



** Attachment added: "lsusb-v.txt"
   http://launchpadlibrarian.net/19465105/lsusb-v.txt

-- 
unable to enumerate USB device on port 5
https://bugs.launchpad.net/bugs/256767
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