I'm experiencing the same issue on GNU/Linux 5.13.0-27-generic x86_64 Hardware is ASUS PN50-E1 / AMD Ryzen 7 4700U with Radeon Graphics
I've been unable to find anything useful in the systemd journal with log levels for systemd and udev both at 9 - the problem seems to be after the journal stops. During the stuck shutdown process, Alt+SysRq+B works and forces a reboot. I do not encounter the same issue with 5.11.0.27-generic (HWE) nor with 5.4.0.96-generic (latest non-HWE). -- 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/1956821 Title: System hangs on reboot and shutdown Status in linux package in Ubuntu: Confirmed Bug description: After upgrading from kernel 5.13.0-22-generic to 5.13.0-23-generic, the system cannot be powered down or rebooted, just hangs indefinitely. A screenshot with the final screen is shown here: https://askubuntu.com/questions/1385794/system-hangs-on-reboot-and-poweroff I can restore the previous behavior (i.e. a correct shutdown) with choosing the previous kernel in the grub menu on boot. Is there anything I can do to provide more information and debug this further? My system information: Description: Ubuntu 21.10 Release: 21.10 --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu71 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: petr 1146 F.... pulseaudio /dev/snd/controlC0: petr 1146 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: XFCE DistroRelease: Ubuntu 21.10 InstallationDate: Installed on 2021-11-07 (62 days ago) InstallationMedia: Xubuntu 21.10 "Impish Indri" - Release amd64 (20211012) MachineType: LENOVO 20YA Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.13.0-22-generic root=/dev/mapper/vgxubuntu-root ro ProcVersionSignature: Ubuntu 5.13.0-22.22-generic 5.13.19 RelatedPackageVersions: linux-restricted-modules-5.13.0-22-generic N/A linux-backports-modules-5.13.0-22-generic N/A linux-firmware 1.201.3 Tags: impish Uname: Linux 5.13.0-22-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/07/2021 dmi.bios.release: 1.21 dmi.bios.vendor: LENOVO dmi.bios.version: GMCN21WW dmi.board.asset.tag: No Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: ThinkBook 13s G3 ACN dmi.ec.firmware.release: 1.16 dmi.modalias: dmi:bvnLENOVO:bvrGMCN21WW:bd04/07/2021:br1.21:efr1.16:svnLENOVO:pn20YA:pvrThinkBook13sG3ACN:rvnLENOVO:rnLNVNB161216:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrThinkBook13sG3ACN:skuLENOVO_MT_20YA_BU_idea_FM_ThinkBook13sG3ACN: dmi.product.family: ThinkBook 13s G3 ACN dmi.product.name: 20YA dmi.product.sku: LENOVO_MT_20YA_BU_idea_FM_ThinkBook 13s G3 ACN dmi.product.version: ThinkBook 13s G3 ACN dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1956821/+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