Bug#689268: Intel HD 4000 (Ivy Bridge) graphics freeze

[Jonathan Nieder <jrnieder@gmail.com>]

Hi,

Sébastien Dinot wrote:

> The last log before a freeze is always like this:
>
> ------------------------------------------------------------------------
> [ 8276.625165] usb 2-1.5: USB disconnect, device number 8
> [ 8276.830839] usb 2-1.5: new low-speed USB device number 9 using ehci_hcd
> [ 8276.928992] usb 2-1.5: New USB device found, idVendor=045e, idProduct=00a4
> [ 8276.928997] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 8276.928999] usb 2-1.5: Product: Microsoft(R) Compact Optical Mouse
> [ 8276.929001] usb 2-1.5: Manufacturer: Microsoft
> [ 8276.934076] input: Microsoft Microsoft(R) Compact Optical Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/input/input17
> [ 8276.934434] hid-generic 0003:045E:00A4.0007: input,hidraw0: USB HID v1.10 Mouse [Microsoft Microsoft(R) Compact Optical Mouse] on usb-0000:00:1d.0-1.5/input0
> ------------------------------------------------------------------------
>
> Of course, I did not disconnect the mouse or shake its USB cable. :(

Based on the timestamps, does that message come immediately before the
freeze or just some time before it?  (If the latter, it's hopefully a
red herring.)