...
[     5.845] (II) event6  - ThinkPad Extra Buttons: is tagged by udev as: Keyboard Switch
[     5.845] (II) event6  - ThinkPad Extra Buttons: device is a keyboard
[     5.845] (II) event6  - ThinkPad Extra Buttons: device is a switch device
[     5.846] (II) event6  - ThinkPad Extra Buttons: device removed
[     5.868] (**) Option "config_info" "udev:/sys/devices/platform/thinkpad_acpi/input/input8/event6"
[     5.868] (II) XINPUT: Adding extended input device "ThinkPad Extra Buttons" (type: KEYBOARD, id 13)
[     5.868] (**) Option "xkb_model" "pc105"
[     5.868] (**) Option "xkb_layout" "de"
[     5.871] (II) event6  - ThinkPad Extra Buttons: is tagged by udev as: Keyboard Switch
[     5.871] (II) event6  - ThinkPad Extra Buttons: device is a keyboard
[     5.871] (II) event6  - ThinkPad Extra Buttons: device is a switch device
[    21.712] (II) event4  - Power Button: device removed
[    21.732] (II) event8  - Video Bus: device removed
[    21.768] (II) event3  - Sleep Button: device removed
[    21.784] (II) event16 - Integrated Camera: Integrated C: device removed
[    21.816] (II) event0  - AT Translated Set 2 keyboard: device removed
[    21.868] (II) event7  - TPPS/2 IBM TrackPoint: device removed
[    21.900] (II) event6  - ThinkPad Extra Buttons: device removed
[    21.916] (II) AIGLX: Suspending AIGLX clients for VT switch
[    22.548] (II) AIGLX: Resuming AIGLX clients after VT switch
[    22.583] (II) modeset(0): EDID vendor "LGD", prod id 728
[    22.583] (II) modeset(0): Printing DDC gathered Modelines:
...