Mouse and Keyboard not working at login screen

[whochismo]

Hello,

I've been having this problem for a week or so. I'm using Ubuntu Maverick 10.10. When ubuntu shows the login screen (gdm), I must wait about 3 minutes until the usb mouse and keyboard start working. Then, they seem to work properly, but other usb devices such as a logitech webcam do not work at all. I get the following error messages:



[ 46.920259] usb 2-2: device descriptor read/64, error -110
[ 62.150272] usb 2-2: device descriptor read/64, error -110
[ 67.411857] usb 2-2: device descriptor read/8, error -110
[ 72.540299] usb 2-2: device descriptor read/8, error -110
[ 77.800304] usb 2-2: device descriptor read/8, error -110
[ 82.930649] usb 2-2: device descriptor read/8, error -110
[ 83.040256] hub 2-0:1.0: unable to enumerate USB device on port 2
[ 98.660266] usb 4-2: device descriptor read/64, error -110
[ 113.950260] usb 4-2: device descriptor read/64, error -110
[ 129.420261] usb 4-2: device descriptor read/64, error -110
[ 144.710266] usb 4-2: device descriptor read/64, error -110
[ 150.030997] usb 4-2: device descriptor read/8, error -110
[ 155.160318] usb 4-2: device descriptor read/8, error -110
[ 160.481199] usb 4-2: device descriptor read/8, error -110
[ 165.611541] usb 4-2: device descriptor read/8, error -110
[ 165.720274] hub 4-0:1.0: unable to enumerate USB device on port 2


EDIT: I even reinstalled all my system and went back to ubuntu 10.04, but the problem was still there. Later on, I realised it was my webcam's fault. I disconnected it and the problem was gone!