yes it boots with iommu=soft
** Description changed: latest 5.11-0-11 and 5.11.0-13 kernels do not boot on my hardware (ASUS X505BA), hanging after boot, without displaying any errors. attaching apport-collect from latest 5.10.0-14 kernel which boots correctly --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu61 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: eugene 1816 F.... pulseaudio /dev/snd/controlC0: eugene 1816 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 21.04 InstallationDate: Installed on 2020-11-20 (130 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) MachineType: ASUSTeK COMPUTER INC. X505BA Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_RU.UTF-8 SHELL=/bin/bash ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-14-generic root=UUID=40f47434-863f-48cf-9af2-41e67323cb0c ro quiet splash ProcVersionSignature: Ubuntu 5.10.0-14.15-generic 5.10.11 RelatedPackageVersions: linux-restricted-modules-5.10.0-14-generic N/A linux-backports-modules-5.10.0-14-generic N/A linux-firmware 1.195 Tags: hirsute wayland-session Uname: Linux 5.10.0-14-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip kvm libvirt lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/02/2020 dmi.bios.release: 5.12 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X505BA.317 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X505BA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX505BA.317:bd04/02/2020:br5.12:svnASUSTeKCOMPUTERINC.:pnX505BA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX505BA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: VivoBook dmi.product.name: X505BA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. + --- + ProblemType: Bug + ApportVersion: 2.20.11-0ubuntu61 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: eugene 1877 F.... pulseaudio + /dev/snd/controlC0: eugene 1877 F.... pulseaudio + CasperMD5CheckResult: unknown + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 21.04 + InstallationDate: Installed on 2020-11-20 (130 days ago) + InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) + MachineType: ASUSTeK COMPUTER INC. X505BA + Package: linux (not installed) + ProcEnviron: + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=ru_RU.UTF-8 + SHELL=/bin/bash + ProcFB: 0 amdgpudrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-13-generic root=UUID=40f47434-863f-48cf-9af2-41e67323cb0c ro quiet splash vt.handoff=7 iommu=soft + ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7 + RelatedPackageVersions: + linux-restricted-modules-5.11.0-13-generic N/A + linux-backports-modules-5.11.0-13-generic N/A + linux-firmware 1.195 + Tags: hirsute wayland-session + Uname: Linux 5.11.0-13-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip kvm libvirt lpadmin lxd plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 04/02/2020 + dmi.bios.release: 5.12 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: X505BA.317 + dmi.board.asset.tag: ATN12345678901234567 + dmi.board.name: X505BA + dmi.board.vendor: ASUSTeK COMPUTER INC. + dmi.board.version: 1.0 + dmi.chassis.asset.tag: No Asset Tag + dmi.chassis.type: 10 + dmi.chassis.vendor: ASUSTeK COMPUTER INC. + dmi.chassis.version: 1.0 + dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX505BA.317:bd04/02/2020:br5.12:svnASUSTeKCOMPUTERINC.:pnX505BA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX505BA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: + dmi.product.family: VivoBook + dmi.product.name: X505BA + dmi.product.version: 1.0 + dmi.sys.vendor: ASUSTeK COMPUTER INC. -- 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/1921995 Title: hirsute kernels 5.11 do not boot on AMD STONEY hardware Status in Kernel SRU Workflow: New Status in linux package in Ubuntu: Confirmed Bug description: latest 5.11-0-11 and 5.11.0-13 kernels do not boot on my hardware (ASUS X505BA), hanging after boot, without displaying any errors. attaching apport-collect from latest 5.10.0-14 kernel which boots correctly --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu61 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: eugene 1816 F.... pulseaudio /dev/snd/controlC0: eugene 1816 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 21.04 InstallationDate: Installed on 2020-11-20 (130 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) MachineType: ASUSTeK COMPUTER INC. X505BA Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_RU.UTF-8 SHELL=/bin/bash ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-14-generic root=UUID=40f47434-863f-48cf-9af2-41e67323cb0c ro quiet splash ProcVersionSignature: Ubuntu 5.10.0-14.15-generic 5.10.11 RelatedPackageVersions: linux-restricted-modules-5.10.0-14-generic N/A linux-backports-modules-5.10.0-14-generic N/A linux-firmware 1.195 Tags: hirsute wayland-session Uname: Linux 5.10.0-14-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip kvm libvirt lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/02/2020 dmi.bios.release: 5.12 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X505BA.317 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X505BA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX505BA.317:bd04/02/2020:br5.12:svnASUSTeKCOMPUTERINC.:pnX505BA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX505BA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: VivoBook dmi.product.name: X505BA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu61 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: eugene 1877 F.... pulseaudio /dev/snd/controlC0: eugene 1877 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 21.04 InstallationDate: Installed on 2020-11-20 (130 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) MachineType: ASUSTeK COMPUTER INC. X505BA Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_RU.UTF-8 SHELL=/bin/bash ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-13-generic root=UUID=40f47434-863f-48cf-9af2-41e67323cb0c ro quiet splash vt.handoff=7 iommu=soft ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7 RelatedPackageVersions: linux-restricted-modules-5.11.0-13-generic N/A linux-backports-modules-5.11.0-13-generic N/A linux-firmware 1.195 Tags: hirsute wayland-session Uname: Linux 5.11.0-13-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip kvm libvirt lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/02/2020 dmi.bios.release: 5.12 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X505BA.317 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X505BA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX505BA.317:bd04/02/2020:br5.12:svnASUSTeKCOMPUTERINC.:pnX505BA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX505BA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: VivoBook dmi.product.name: X505BA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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