@kaihengfeng -- 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/1881213
Title: System hangs at reboot or poweroff. kworker blocked at dp_altmode_work Status in linux package in Ubuntu: Incomplete Bug description: Expected: System reboots/powers off. Actual: System hangs with the plymouth bootsplash with the Kubuntu logo. Pressing escape shows `[OK] Reached target Reboot`. `journalctl -b -1` shows at the end. ``` May 28 16:33:21 jordan-ThinkPad systemd[1]: Shutting down. May 28 16:33:21 jordan-ThinkPad systemd-shutdown[1]: Syncing filesystems and block devices. May 28 16:33:21 jordan-ThinkPad systemd-shutdown[1]: Sending SIGTERM to remaining processes... May 28 16:33:21 jordan-ThinkPad systemd-journald[454]: Journal stopped ``` Letting the computer continue to idle, an error message shows up. I've attached a picture because the error message does not show up in any logs. Possibly a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872817, though the other user did not mention the same symptoms. Description: Ubuntu 20.04 LTS Release: 20.04 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.suspend: suspend hibernate resume .proc.driver.nvidia.suspend_depth: default modeset uvm .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 440.64 Fri Feb 21 01:17:26 UTC 2020 GCC version: ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Thu May 28 16:53:34 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu DkmsStatus: acpi-call, 1.1.0, 5.4.0-31-generic, x86_64: installed acpi-call, 1.1.0, 5.4.0-33-generic, x86_64: installed ExtraDebuggingInterest: No GraphicsCard: NVIDIA Corporation TU117M [GeForce GTX 1650 Mobile / Max-Q] [10de:1f91] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Lenovo TU117M [GeForce GTX 1650 Mobile / Max-Q] [17aa:229f] InstallationDate: Installed on 2020-05-22 (6 days ago) InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 20QVCTO1WW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-33-generic root=UUID=0a60aa5c-2eea-49a2-9e8e-966068e76491 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/07/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2OET44W (1.31 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QVCTO1WW dmi.board.vendor: LENOVO dmi.board.version: 0B98417 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2OET44W(1.31):bd05/07/2020:svnLENOVO:pn20QVCTO1WW:pvrThinkPadX1ExtremeGen2:rvnLENOVO:rn20QVCTO1WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Extreme Gen2 dmi.product.name: 20QVCTO1WW dmi.product.sku: LENOVO_MT_20QV_BU_Think_FM_ThinkPad X1 Extreme Gen2 dmi.product.version: ThinkPad X1 Extreme Gen2 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881213/+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
