[   19.621561] systemd-logind[996]: Watching system buttons on /dev/input/event2 (Power Button)
[   19.621663] systemd-logind[996]: Watching system buttons on /dev/input/event5 (Video Bus)
[   19.621756] systemd-logind[996]: Watching system buttons on /dev/input/event0 (Power Button)
[   19.621843] systemd-logind[996]: Watching system buttons on /dev/input/event1 (Lid Switch)
[   20.143651] brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos enabled: false (implement)
[   20.143665] brcmsmac bcma0:0: brcms_ops_config: change power-save mode: false (implement)
[   20.144693] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   20.157514] atl1c 0000:08:00.0: irq 45 for MSI/MSI-X
[   20.174708] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   23.744089] init: plymouth-upstart-bridge main process ended, respawning
[   24.098979] systemd-logind[996]: New session c1 of user lightdm.
[   24.099253] systemd-logind[996]: Linked /tmp/.X11-unix/X0 to /run/user/113/X11-display.
[   41.822276] init: plymouth-stop pre-start process (1775) terminated with status 1
[   47.221338] audit_printk_skb: 30 callbacks suppressed
[   47.221344] audit: type=1400 audit(1403817046.239:34): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=1836 comm="apparmor_parser"
[   47.221353] audit: type=1400 audit(1403817046.239:35): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=1836 comm="apparmor_parser"
[  182.729962] systemd-logind[996]: New session c2 of user tantan.
[  182.730355] systemd-logind[996]: Linked /tmp/.X11-unix/X0 to /run/user/1000/X11-display.
[  203.709089] usb 4-1: new low-speed USB device number 2 using ohci-pci
[  203.873143] usb 4-1: New USB device found, idVendor=093a, idProduct=2521
[  203.873152] usb 4-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[  203.873157] usb 4-1: Product: USB OPTICAL MOUSE
[  203.943103] hidraw: raw HID events driver (C) Jiri Kosina
[  203.971411] usbcore: registered new interface driver usbhid
[  203.971417] usbhid: USB HID core driver
[  203.983012] systemd-logind[996]: Removed session c1.
[  203.999752] input: USB OPTICAL MOUSE as /devices/pci0000:00/0000:00:12.0/usb4/4-1/4-1:1.0/0003:093A:2521.0001/input/input18
[  204.000317] hid-generic 0003:093A:2521.0001: input,hidraw0: USB HID v1.11 Mouse [USB OPTICAL MOUSE] on usb-0000:00:12.0-1/input0