For testing the latest kernel, I downloaded and installed the following .deb files (System is 64-bit):
linux-headers-4.18.0-041800rc8_4.18.0-041800rc8.201808052031_all.deb linux- headers-4.18.0-041800rc8-generic_4.18.0-041800rc8.201808052031_amd64.deb linux-image-unsigned-4.18.0-041800rc8-generic_4.18.0-041800rc8.201808052031_amd64.deb (showed the 'missing dependencies' error on installation, therefore installed linux-modules) linux- modules-4.18.0-041800rc8-generic_4.18.0-041800rc8.201808052031_amd64.deb This resolved hanging of the system while shutting down/restarting. However, now I see a particular screen on startup (image attached) where I can spot the " [2.124104] ACPI Bios Error (bug) ". Is this something to be worried about? ** Attachment added: "Image of the screen on startup (displaying the ACPI Bios Error)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785759/+attachment/5172817/+files/IMG_2159.JPG -- 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/1785759 Title: System hangs after shutdown or restart operation is initiated. Status in linux package in Ubuntu: Incomplete Bug description: When I attempt to turn off my laptop or restart it, the system hangs as it is. I then have to resort to force shutdown via the power button. I've disabled my touchpad (since it doesn't work properly - probably a hardware issue) and therefore use an external mouse (Logitech M235). ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-30-generic 4.15.0-30.32 ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18 Uname: Linux 4.15.0-30-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.9-0ubuntu7.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: protagonist26 2204 F.... pulseaudio /dev/snd/controlC0: protagonist26 2204 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Tue Aug 7 12:36:21 2018 InstallationDate: Installed on 2018-07-27 (10 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: LENOVO 20354 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_IN SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic root=UUID=3dad4d21-4cc3-4346-abae-fb6b8a4eee38 ro quiet splash acpi=force vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-30-generic N/A linux-backports-modules-4.15.0-30-generic N/A linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/10/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 9BCN25WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Lancer 5A5 dmi.board.vendor: LENOVO dmi.board.version: 31900059STD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Z50-70 dmi.modalias: dmi:bvnLENOVO:bvr9BCN25WW:bd04/10/2014:svnLENOVO:pn20354:pvrLenovoZ50-70:rvnLENOVO:rnLancer5A5:rvr31900059STD:cvnLENOVO:ct10:cvrLenovoZ50-70: dmi.product.family: IDEAPAD dmi.product.name: 20354 dmi.product.version: Lenovo Z50-70 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785759/+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
