[   11.824068] Adding 4491260k swap on /dev/sda4.  Priority:-1 extents:1 across:4491260k FS
[   12.031563] systemd-udevd[308]: starting version 204
[   12.681505] lp: driver loaded but no devices found
[   12.689218] i801_smbus 0000:00:1f.3: SMBus using PCI interrupt
[   12.741805] chromeos_laptop: module verification failed: signature and/or  required key missing - tainting kernel
[   12.742291] __add_probed_i2c_device failed to dmi find device trackpad.
[   12.742303] platform chromeos_laptop: Driver chromeos_laptop requests probe deferral
[   12.753698] ppdev: user-space parallel port driver
[   12.759648] __add_probed_i2c_device failed to dmi find device trackpad.
[   12.759663] platform chromeos_laptop: Driver chromeos_laptop requests probe deferral
[   12.759788] __add_probed_i2c_device failed to dmi find device trackpad.
[   12.759795] platform chromeos_laptop: Driver chromeos_laptop requests probe deferral
[   12.759902] __add_probed_i2c_device failed to dmi find device trackpad.
[   12.759908] platform chromeos_laptop: Driver chromeos_laptop requests probe deferral