I've created a diff of the systemd boot journal for working and failing boot.
journalctl --no-pager -b-0|cut -f 4- -d' ' > allb0 journalctl --no-pager -b-1|cut -f 4- -d' ' > allb1 diff allb0 allb1 >alldiff ** Attachment added: "diff of boot journal working/failing" https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.13/+bug/1960018/+attachment/5560557/+files/alldiff -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-5.13 in Ubuntu. https://bugs.launchpad.net/bugs/1960018 Title: Boot Failure - linux-image-5.13.0-28-generic | regression Status in linux-hwe-5.13 package in Ubuntu: Confirmed Bug description: Ubuntu 20.04.3 Installed since May 2020, now fails to boot into graphics mode after upgrade to kernel version linux-image-5.13.0-27-generic - Have tried linux-image-5.13.0-28-generic with same result, I have reverted back to 5.11.0.40 which works correctly. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: christian 1890 F.... pulseaudio /dev/snd/controlC0: christian 1890 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-05-06 (639 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 81MT Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-40-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.11.0-40.44~20.04.2-generic 5.11.22 RelatedPackageVersions: linux-restricted-modules-5.11.0-40-generic N/A linux-backports-modules-5.11.0-40-generic N/A linux-firmware 1.187.25 Tags: focal Uname: Linux 5.11.0-40-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/09/2019 dmi.bios.release: 2.23 dmi.bios.vendor: LENOVO dmi.bios.version: 8ZCN23WW(V2.02) dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: No DPK dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo V145-15AST dmi.ec.firmware.release: 2.23 dmi.modalias: dmi:bvnLENOVO:bvr8ZCN23WW(V2.02):bd05/09/2019:br2.23:efr2.23:svnLENOVO:pn81MT:pvrLenovoV145-15AST:skuLENOVO_MT_81MT_BU_idea_FM_V145-15AST:rvnLENOVO:rnLNVNB161216:rvrNoDPK:cvnLENOVO:ct10:cvrLenovoV145-15AST: dmi.product.family: V145-15AST dmi.product.name: 81MT dmi.product.sku: LENOVO_MT_81MT_BU_idea_FM_V145-15AST dmi.product.version: Lenovo V145-15AST dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.13/+bug/1960018/+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
