[    2.184468] input: Microsoft Microsoft\xffffffc2\xffffffae\xffffffae SiderWinderTM X4 Keyboard as /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/input/input3
[    2.184711] hid-generic 0003:045E:0768.0002: input,hidraw1: USB HID v1.11 Keyboard [Microsoft Microsoft\xffffffc2\xffffffae\xffffffae SiderWinderTM X4 Keyboard] on usb-0000:00:1d.1-1/input0
[    2.201724] input: Microsoft Microsoft\xffffffc2\xffffffae\xffffffae SiderWinderTM X4 Keyboard as /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.1/input/input4
[    2.201925] hid-generic 0003:045E:0768.0003: input,hidraw2: USB HID v1.11 Keyboard [Microsoft Microsoft\xffffffc2\xffffffae\xffffffae SiderWinderTM X4 Keyboard] on usb-0000:00:1d.1-1/input1
[   30.362565] init: gdm main process (1358) killed by TERM signal
[   34.007110] vboxdrv: Found 2 processor cores.
[   34.008631] vboxdrv: fAsync=0 offMin=0x53f offMax=0x27ab
[   34.008777] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
[   34.008781] vboxdrv: Successfully loaded version 4.1.18_Ubuntu (interface 0x00190000).
[   34.041612] vboxpci: IOMMU not found (not registered)
[   35.556409] init: plymouth-stop pre-start process (2059) terminated with status 1
[   35.635130] ip_tables: (C) 2000-2006 Netfilter Core Team
[   35.695493] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   37.312052] delay: estimated 0, actual 64
[   37.320054] delay: estimated 64, actual 128
[   45.901050] delay: estimated 0, actual 64
[   45.909057] delay: estimated 64, actual 128
[   46.421054] yealink 2-1:1.3: urb_irq_callback - urb status -108
[   46.423060] yealink 2-1:1.3: urb_ctl_callback - usb_submit_urb failed -2