Public bug reported:

1. New install of 17.10 beta 2 on XPS 13 9350. Intel gpu and using wayland 
(enabled by default)
2. Select top right menu, hold alt, select suspend button

I expect the laptop to suspend. Instead the screen goes blank. The
laptop remained on (power button is light, fans are on). The laptop is
unresponsive until hard reboot (holding down power button). A suspended
state is never reached.

The laptop previously suspended fine on 17.04.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-12-generic 4.13.0-12.13 [modified: 
boot/vmlinuz-4.13.0-12-generic]
ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
Uname: Linux 4.13.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/pcmC0D0p:   david      1388 F...m pulseaudio
 /dev/snd/controlC0:  david      1388 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 30 12:18:05 2017
InstallationDate: Installed on 2017-09-30 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
MachineType: Dell Inc. XPS 13 9350
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic.efi.signed 
root=UUID=a7e24755-5141-4ab1-a8d4-e4da5ebfe9ce ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-12-generic N/A
 linux-backports-modules-4.13.0-12-generic  N/A
 linux-firmware                             1.168
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/18/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.5.1
dmi.board.name: 09JHRY
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvr1.5.1:bd08/18/2017:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn09JHRY:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.family: NULL
dmi.product.name: XPS 13 9350
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug artful wayland-session

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https://bugs.launchpad.net/bugs/1720557

Title:
  System freeze on attempt to suspend

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