On Fri, Nov 23, 2012 at 11:03 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > 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? They were plugged into the added pci controller. I have 2 sets of mice and keyboards plugged in 1 set to the pci card and 1 set to the motherboard. It does not matter if its usb2 or usb3 ports you have them plugged into the motherboard when this happens they stop responding. And unplugging replugging has no effect. And running modprobe -r ehci_hcd && modprobe ehci_hcd results in FATAL: Module ehci_hcd is builtin > >> 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? Yes. Attached lspci > > If you collect a usbmon trace for that bus (bus 4 in the attached > logs), what does it show when the problem occurs? Dont have a clue but I will into it. > > If you run a kernel that has CONFIG_USB_DEBUG enabled, what shows up in > the dmesg log when the problem occurs? I dont have a debug kernel but I will try and build one. I am not the most advanced Linux user around. > > Alan Stern > Chris Holland
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