By the way, I connected back up the sound on my machine before that most recent crash. So, it is not the cause (for anyone who may have considered that possibility).
Also, you will find this possibly relevant thread regarding smp_call_function_ (single or many): https://lkml.org/lkml/2016/1/30/27 I do run my 8 cores hard (almost constantly) with financial simulations. The simulations pause when any core temperatures get above the half way point between "high" and "critical" until the temperatures drop well below "high". As a possibly relevant side note. -- 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/1757445 Title: Suspend does not always resume Status in linux package in Ubuntu: Confirmed Status in linux-meta-hwe package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Bug description: Dell XPS 13 9350 on AC power left running overnight, suspends after a given timeout. When coming back the next morning sometimes the laptop resumes to an aubergine desktop (just the screen, no GDM) and cursor and sits there forever. Sometimes it resumes to a black screen and cursor. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-12-generic 4.15.0-12.13 ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7 Uname: Linux 4.15.0-12-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Mar 21 14:15:04 2018 InstallationDate: Installed on 2018-02-13 (36 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180201) MachineType: Dell Inc. XPS 13 9350 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-12-generic root=UUID=bc5b647b-38ca-4206-9e96-774a5ac6b833 ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-12-generic N/A linux-backports-modules-4.15.0-12-generic N/A linux-firmware 1.173 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: 07TYC2 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.5.1:bd08/18/2017:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.family: NULL dmi.product.name: XPS 13 9350 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1757445/+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