USB keyboard not working

[topgun_tapan]

I have a usb keyboard which was working perfectly till now (about a year since i have been regularly using ubuntu). It suddenly stopped working. It stopped working when I connected a USB HDD. Now the keyboard works randomly .. working for a while and then stops working for a longer time. Here is the dmesg output :



[ 705.817076] usb 5-1: device not accepting address 8, error -71
[ 705.928032] usb 5-1: new low speed USB device using uhci_hcd and address 9
[ 706.336060] usb 5-1: device not accepting address 9, error -71
[ 706.448055] usb 5-1: new low speed USB device using uhci_hcd and address 10
[ 706.568044] usb 5-1: device descriptor read/64, error -71
[ 706.792049] usb 5-1: device descriptor read/64, error -71
[ 707.008060] usb 5-1: new low speed USB device using uhci_hcd and address 11
[ 707.128041] usb 5-1: device descriptor read/64, error -71
[ 707.352052] usb 5-1: device descriptor read/64, error -71
[ 707.456068] hub 5-0:1.0: unable to enumerate USB device on port 1


Based on the suggestions here (http://ubuntuforums.org/showthread.php?t=797789) i tried the following two things:

echo -1 >/sys/module/usbcore/parameters/autosuspend
echo Y > /sys/module/usbcore/parameters/old_scheme_first


However, i am still facing the same problem. Can anyone help me out with this ?

[unknown_killer]

I guess time to buy a new keyboard.