OpenSUSE ehci module (usb) suddenly shuts down
I have been experiencing one of the most annoying bugs on linux so far. Usually the only worse of not working is if something is working just slow. When I switched on the computer, the usb devices are stopped to work (every single time) after a while, then after about 3-5 minutes they have started to work again (!), only they were impossibly slow (FullSpeed, about 800k). As I had two usb harddisk attached, this has been unacceptable.
The cause of the problem was that I plugged an usb hub into an other one. However the primary hub was self powered (plugged) into electricity, the system got confused. The second hub, and this is important, was a keyboard with usb connectors. As a solution, I have plugged the keyboard into the computer instead of the hub.