dmesg | tail
[   31.202443] r8169 0000:04:00.2 eth0: link up
[   31.202454] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   35.792723] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[   35.792820] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[   35.792894] nouveau 0000:01:00.0: DRM: evicting buffers...
[   35.803836] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle...
[   35.803868] nouveau 0000:01:00.0: DRM: suspending client object trees...
[   35.804145] nouveau 0000:01:00.0: DRM: suspending kernel object tree...
[   54.727963] r8169 0000:04:00.2 eth0: link down
[   66.976299] r8169 0000:04:00.2 eth0: link up