cinnamon session freezes after "ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20170531/nsarguments-95)"

[Karl-Philipp Richter]

The cinnamon desktop freezes randomly so that the screen in no longer updated and all mouse and keyboard input have no effect. It's possible to switch to the gdm login string with Ctrl+Alt+F1 (re-login gets me back to the frozen session) and to login via SSH where I was able to save `dmesg` which reveals

[ 8159.719757] nouveau 0000:01:00.0: DRM: resuming object tree...
[ 8159.876532] nouveau 0000:01:00.0: DRM: resuming fence...
[ 8165.355536] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20170531/nsarguments-95)
[ 8165.355729] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
[ 8165.355733] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20170531/nsarguments-95)
[ 8165.355927] nouveau 0000:01:00.0: DRM: evicting buffers...
[ 8165.355929] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle...
[ 8165.355949] nouveau 0000:01:00.0: DRM: suspending fence...
[ 8165.357166] nouveau 0000:01:00.0: DRM: suspending object tree...

The only fix for me is to restart the machine in the gdm login screen from the SSH shell.

I hope that additional debugging information is uploaded through apport, if not I'm willing to provide it.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xserver-xorg-video-nouveau 1:1.0.15-2
ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13
Uname: Linux 4.13.0-21-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
BootLog:

CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: X-Cinnamon
Date: Tue Mar 6 18:54:07 2018
DistUpgraded: Fresh install
DistroCodename: artful
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:3904]
   Subsystem: Lenovo GK208M [GeForce GT 740M] [17aa:3904]
JournalErrors:
 Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
       Users in the 'systemd-journal' group can see all messages. Pass -q to
       turn off this notice.
 No journal files were opened due to insufficient permissions.
MachineType: LENOVO 20221
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-21-generic root=UUID=fef6e7d4-2aad-4abc-840e-cb971b2c94c8 ro rootflags=subvol=ubuntu-main-root-tmp acpi_backlight=vendor
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/12/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 71CN51WW(V1.21)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Z500 Touch
dmi.modalias: dmi:bvnLENOVO:bvr71CN51WW(V1.21):bd07/12/2013:svnLENOVO:pn20221:pvrLenovoIdeaPadZ500Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadZ500Touch:
dmi.product.family: IDEAPAD
dmi.product.name: 20221
dmi.product.version: Lenovo IdeaPad Z500 Touch
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.83-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.8-0ubuntu0~17.10.1
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.8-0ubuntu0~17.10.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2