[   33.826209] nouveau 0000:01:00.0: DRM: suspending client object trees...
[   33.826490] nouveau 0000:01:00.0: DRM: suspending kernel object tree...
[ 1470.452188] nouveau 0000:01:00.0: DRM: resuming kernel object tree...
[ 1470.569679] nouveau 0000:01:00.0: DRM: resuming client object trees...
[ 1475.779652] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 1475.779929] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 1475.780155] nouveau 0000:01:00.0: DRM: evicting buffers...
[ 1475.780163] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle...
[ 1475.780215] nouveau 0000:01:00.0: DRM: suspending client object trees...
[ 1475.780550] nouveau 0000:01:00.0: DRM: suspending kernel object tree...