I can't reproduce the issue on the XPS 9360 at my hand, which unfortunately is not the mass production one, with both BIOS 2.3.1 (the version you currently used) and 2.4.2.
The TBT's XHCI HC failed to suspend, [ 87.718350] xhci_hcd 0000:39:00.0: WARN: xHC CMD_RUN timeout [ 87.718372] suspend_common(): xhci_pci_suspend+0x0/0xd0 returns -110 [ 87.718377] pci_pm_suspend(): hcd_pci_suspend+0x0/0x30 returns -110 [ 87.718385] dpm_run_callback(): pci_pm_suspend+0x0/0x130 returns -110 [ 87.718391] PM: Device 0000:39:00.0 failed to suspend async: error -110 Also we can see that: 01:00.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] [8086:1576] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: pcieport Kernel modules: shpchp 02:00.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] [8086:1576] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: pcieport Kernel modules: shpchp 02:01.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] [8086:1576] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: pcieport Kernel modules: shpchp 02:02.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] [8086:1576] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: pcieport Kernel modules: shpchp 03:00.0 System peripheral [0880]: Intel Corporation DSL6340 Thunderbolt 3 NHI [Alpine Ridge 2C 2015] [8086:1575] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: thunderbolt Kernel modules: thunderbolt 39:00.0 USB controller [0c03]: Intel Corporation DSL6340 USB 3.1 Controller [Alpine Ridge] [8086:15b5] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: xhci_hcd All these PCI devices are not responsive. Can you attach the output `lspci` right after boot, without plugging any USB-C/TBT device? Also, can you upgrade your BIOS and Thunderbolt firmware? Hopefully this can fix the issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1738224 Title: Suspend broken after kernel upgrade Status in linux package in Ubuntu: Confirmed Bug description: My machine (XPS 13 9360) won't go into suspend properly after upgrading from linux-image-4.13.0-17-generic to linux- image-4.13.0-19-generic. This affects both suspend through lid close and "systemctl suspend". Screen goes off, power led remains lit. Then after some time the screen comes back on, is stuck and lets me wait for a few before becoming responsive again. Booting back into 4.13.0-17 resolved the issue. --- ApportVersion: 2.20.7-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jeffrey 1963 F.... pulseaudio CurrentDesktop: GNOME DistroRelease: Ubuntu 17.10 HibernationDevice: RESUME=UUID=0253ffe9-bdbf-4825-b583-e8055f7bffe5 InstallationDate: Installed on 2017-10-18 (56 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1) MachineType: Dell Inc. XPS 13 9360 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-19-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13 RelatedPackageVersions: linux-restricted-modules-4.13.0-19-generic N/A linux-backports-modules-4.13.0-19-generic N/A linux-firmware 1.169.1 Tags: artful wayland-session Uname: Linux 4.13.0-19-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker input libvirt lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 10/03/2017 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.3.1 dmi.board.name: 0839Y6 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.3.1:bd10/03/2017:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn0839Y6:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9360 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1738224/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp