On Thu, 22 Nov 2012, Chris Holland wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=50821 > > > Summary: Mouse and keyboard freeze Ivy-bridge > I have been having the problem of the mouse and keyboard freezing since > upgrading my system in May 2012 > > GIGABYTE GA-Z77X-UD5H LGA 1155 Intel Z77 HDMI SATA > Intel Core i5-3550 Ivy Bridge > > > Mouse and keyboard stop responding randomly. By using only the usb connections > on the motherboard it requires logging in by ssh to restart the computer or > hard resetting. Unplugging and plugging the mouse or keyboard in has no effect > on the issue. Which USB controller were the mouse and keyboard plugged into? > I added a pci usb controller and this stops working as well but you can unplug > and plug the devices back in and continue to use the computer. In the logs you attached to the bugzilla.kernel.org report, the keyboard and mouse were attached to the OHCI controller at 0000:06:00.0. Is that the PCI controller? If you collect a usbmon trace for that bus (bus 4 in the attached logs), what does it show when the problem occurs? If you run a kernel that has CONFIG_USB_DEBUG enabled, what shows up in the dmesg log when the problem occurs? Alan Stern -- 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