On Fri, Feb 22, 2013 at 03:59:54AM -0500, Dave Jones wrote: > On Thu, Feb 21, 2013 at 10:40:10AM -0800, Greg KH wrote: > > > USB patches for 3.9-rc1 > > > > Here's the big USB merge for 3.9-rc1 > > > > Nothing major, lots of gadget fixes, and of course, xhci stuff. > > I get no USB devices recognised when I insert them any more, which > I think is pretty major. I suspect it has something to do with this ? > > > Lan Tianyu (12): > > usb: add runtime pm support for usb port device > > usb: add usb port auto power off mechanism > > It looks like every port on my laptop is powered down, as I can't > even charge devices with it. Hi Dave, I have the same problem (and almost the same laptop, Thinkpad T430 here), all external USB ports without power - even the always-on one :-). The bug seems to be ACPI related, I bisected it down to this patch: f95988d ACPI / scan: Treat power resources in a special way In the dmesg I have some error like these: ACPI: Power Resource [PUBS] (on) ... pci 0000:00:14.0: System wakeup disabled by ACPI for the USB controllers in the broken kernel, there are some in your dmesg too. I'll try to come up with a fix for current mainline, but all the acpi stuff is quite obscure to me and the patch does not revert cleanly, maybe Rafael (in CC) has some idea! Fabio -- Fabio Baltieri -- 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
