On Thu, 5 Nov 2009 13:43:36 -0500 (EST) Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Thu, 5 Nov 2009, Jesse Barnes wrote: > > > On Thu, 5 Nov 2009 11:13:52 -0500 (EST) > > Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > > > > If you're sure it's not a hardware issue, and you don't want > > > > > to go through a bisection search just yet, try doing this: > > > > > Prevent ehci-hcd from loaded automatically during bootup. > > > > > When you then load it manually, does the same thing happen? > > > > > > > > Ok, I'll give that a try. > > > > > > If you can reproduce the problem at a time later then initial > > > startup, the next step is to collect a usbmon trace (see > > > Documentation/usb/usbmon.txt). > > > > I can reproduce the problem with just uhci_hcd loaded, so I guess > > it's not a low/high speed handoff problem? > > This must be on the older computer, right? The newer chipset didn't > include any UHCI controllers. Yeah, this is from the older one. > I can't tell what's going on without seeing the usbmon output. I > might not be able to tell even _after_ seeing the output -- but at > least it's a place to start. I'll try to set that up. -- Jesse Barnes, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
