Ubuntu
linux-source-2.6.22 package

  1. Bug #88746 (ehci-hcd)
  2. Comment #1

Comment 1 for bug 88746

Revision history for this message
Al Buntu (biedermann2) wrote : Re: my usb devices only work if I do "sudo modprobe -r ehci_hcd"

I have more informations:
My PC has 4 built-in USB-ports, 2 in front, 2 in the rear. They work without problems with the loaded ehci-modul. if I plug in an USB-stick there he will be recognized.
But:
When I additionally plug in an USB-hub the hub is recognized but after a few seconds my USB-stick is logged off. A message tells me: "Unsafe disc removal..." or something similar.
The same behavior I notice when there is only one usb-hub plugged in and I add a second usb-hub parallel to the first. The second hub "kills" the first.
If there are any additional questions don't hesitate to contact me.