Had these exact symptoms (lockup, not even sysrq working) on Ubuntu 16.04 with kernel 4.4.0-116 and 4.13.0-37 (booting to the "prior stable" kernel in each case, 4.4.0-112 and 4.13.0-36, worked successfully). There's quite a lot in the changelog (http://changelogs.ubuntu.com/changelogs/pool/main/l/linux-hwe/linux- hwe_4.13.0-37.42~16.04.1/changelog) so I wouldn't like to speculate on what exactly caused this, but I did find a fix in my case: remove the intel-microcode package.
I have a vague recollection of installing this from the "Additional Drivers" section of the updates system, but after booting to the older kernel, and running "sudo apt purge intel-microcode" I found I could successfully reboot in the newer kernel. -- 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/1760377 Title: Ubuntu 17.10 freezes on login with kernel 4.13.0-37-generic Status in linux package in Ubuntu: Confirmed Bug description: I updated kernel to 4.13.0-37-generic, and after reboot, it freezes on the kde login screen. Even sysrq keys does not work. I rebooted again, and be able to enter password, then it freezes again on plasma loading screen. I finally selected 4.13.0-36-generic kernel from grub, and my computer booted normally. I guess there was a kernel panic, but it didn't show on screen, nor in system logs, or I cannot find it. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: xorg 1:7.7+19ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-36.40-generic 4.13.13 Uname: Linux 4.13.0-36-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: KDE Date: Sun Apr 1 11:14:39 2018 DistUpgraded: 2017-10-02 23:05:26,340 DEBUG icon theme changed, re-reading DistroCodename: artful DistroVariant: kubuntu DpkgLog: EcryptfsInUse: Yes ExtraDebuggingInterest: I just need to know a workaround GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) Subsystem: QUANTA Computer Inc 2nd Generation Core Processor Family Integrated Graphics Controller [152d:0875] NVIDIA Corporation GF106M [GeForce GT 555M] [10de:0dce] (rev a1) (prog-if 00 [VGA controller]) Subsystem: QUANTA Computer Inc GF106M [GeForce GT 555M] [152d:0875] InstallationDate: Installed on 2012-12-20 (1927 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: Hasee QTH6 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-36-generic root=UUID=5e2d0528-b52e-4165-9c44-c18ef0338b43 ro quiet splash video=VGA-2:d SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to artful on 2017-10-02 (180 days ago) dmi.bios.date: 12/16/2011 dmi.bios.vendor: INSYDE dmi.bios.version: SU272 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: HM65 dmi.board.vendor: Hasee dmi.board.version: TBD dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hasee dmi.chassis.version: US dmi.modalias: dmi:bvnINSYDE:bvrSU272:bd12/16/2011:svnHasee:pnQTH6:pvr03:rvnHasee:rnHM65:rvrTBD:cvnHasee:ct10:cvrUS: dmi.product.family: Intel_Mobile dmi.product.name: QTH6 dmi.product.version: 03 dmi.sys.vendor: Hasee 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 1:2.10.5-1ubuntu1 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 xserver.bootTime: Sun Apr 1 11:07:30 2018 xserver.configfile: default xserver.errors: Failed to load module "nvidia" (module does not exist, 0) Failed to load module "nvidia" (module does not exist, 0) NOUVEAU(G0): [XvMC] Failed to initialize extension. xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.19.5-0ubuntu2 xserver.video_driver: modeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1760377/+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