I've also tried upgrading to a newer shim, in case something left around in memory was causing problems. This also didn't help.
And quoting the kernel error here for text searchability: [ 675.724534] ACPI Error: Aborting method \_SB.PCI0.PEG0.PEGP.NVP0 due to previous error (AE_AML_LOOP_TIMEOUT) (20201113/psparse-529) [ 675.724698] ACPI Error: Aborting method \_SB.PCI0.PGON due to previous error (AE_AML_LOOP_TIMEOUT) (20201113/psparse-529) [ 675.724704] ACPI Error: Aborting method \_SB.PCI0.PEG0.PG00._ON due to previous error (AE_AML_LOOP_TIMEOUT) (20201113/psparse-529) -- 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/1939349 Title: frequent hangs with latest hirsute kernel (nvidia graphics) Status in linux package in Ubuntu: Confirmed Bug description: After upgrading to the latest kernel, I am experiencing frequent kernel hangs. The system does not respond to Alt+SysRq, and I have to power it off. In some cases the hang happens before X has even been launched at boot. When it hangs, the fan spins up to full speed. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.11.0-25-generic 5.11.0-25.27 ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22 Uname: Linux 5.11.0-25-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: vorlon 10452 F.... pulseaudio /dev/snd/controlC0: vorlon 10452 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Mon Aug 9 14:15:58 2021 InstallationDate: Installed on 2019-12-23 (594 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: LENOVO 20QVCTO1WW ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_di672m@/vmlinuz-5.11.0-25-generic root=ZFS=rpool/ROOT/ubuntu_di672m ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-5.11.0-25-generic N/A linux-backports-modules-5.11.0-25-generic N/A linux-firmware 1.197.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/17/2019 dmi.bios.release: 1.27 dmi.bios.vendor: LENOVO dmi.bios.version: N2OET40W (1.27 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QVCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0R32862 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.19 dmi.modalias: dmi:bvnLENOVO:bvrN2OET40W(1.27):bd10/17/2019:br1.27:efr1.19:svnLENOVO:pn20QVCTO1WW:pvrThinkPadX1Extreme2nd:rvnLENOVO:rn20QVCTO1WW:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Extreme 2nd dmi.product.name: 20QVCTO1WW dmi.product.sku: LENOVO_MT_20QV_BU_Think_FM_ThinkPad X1 Extreme 2nd dmi.product.version: ThinkPad X1 Extreme 2nd dmi.sys.vendor: LENOVO --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: vorlon 8854 F.... pulseaudio /dev/snd/controlC0: vorlon 8854 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 21.04 InstallationDate: Installed on 2019-12-23 (600 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: LENOVO 20QVCTO1WW NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_di672m@/vmlinuz-5.11.0-25-generic root=ZFS=rpool/ROOT/ubuntu_di672m ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22 RelatedPackageVersions: linux-restricted-modules-5.11.0-25-generic N/A linux-backports-modules-5.11.0-25-generic N/A linux-firmware 1.197.2 Tags: hirsute Uname: Linux 5.11.0-25-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirt lpadmin lxd plugdev sambashare sbuild src sudo _MarkForUpload: True dmi.bios.date: 04/28/2021 dmi.bios.release: 1.39 dmi.bios.vendor: LENOVO dmi.bios.version: N2OET52W (1.39 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QVCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0R32862 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.22 dmi.modalias: dmi:bvnLENOVO:bvrN2OET52W(1.39):bd04/28/2021:br1.39:efr1.22:svnLENOVO:pn20QVCTO1WW:pvrThinkPadX1Extreme2nd:rvnLENOVO:rn20QVCTO1WW:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Extreme 2nd dmi.product.name: 20QVCTO1WW dmi.product.sku: LENOVO_MT_20QV_BU_Think_FM_ThinkPad X1 Extreme 2nd dmi.product.version: ThinkPad X1 Extreme 2nd dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939349/+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