Please try to keep people on Cc in the loop. :) On Thu, Dec 09, 2010 at 05:39:33PM -0500, Jon 'maddog' Hall wrote: > >> but the USB 3.0 ports were dead with that. > > >Dead how so? Do you mean that USB 2.0 devices and USB 3.0 devices are > >not showing up at all when you plug a device into the USB 3.0 ports? > > That is correct. But they do show up on the USB 2.0 ports that are on > the laptop. Ok, I think for the stock distro kernel, they didn't have the xHCI driver compiled. I don't see any detection of an xHCI host controller, so any port under that driver would be "dead". There are two EHCI host controllers, and those ports would work. > >The port is still powered, even though userspace has unmounted the > >drive. > > Yes, but on all other ports I have used this device (and there have been > many) once the data stops, the light stops flickering. And I think that > USB 2.0 ports are always powered when the system is on, aren't they? > > >I'm not sure, but I think "safely removing" a USB device actually > >powers off the USB port. ISTR that Alan worked on a patch for that. > >Alan, is this expected behavior? > > Well, if that is true, then what do you have to do to turn it back on > again? I think they're supposed to turn on when there's a new connect status change. So they should have been powered up when you plugged in the USB device a second time. > In any case, attached to this email is a tar file. The tar file has a > directory called "sarah" at the top, with two directories beneath that, > one for each kernel: > > 2.6.35.9-64.fc14.x86_64 (2.6.35-9-64 AMD_64, Fedora 14, SMP) > 2.6.37-rc5-git3 (the one I built from the tree at Kernel.org with SMP > and PREEMPT turned on) Alan, the tarball is here if you want to take a look: http://minilop.net/~sarah/maddog-lenovo-w510-xhci-issue.tar I'm still taking a look at them. Sarah Sharp -- 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
