apport information ** Attachment added: "PciMultimedia.txt" https://bugs.launchpad.net/bugs/2100778/+attachment/5862248/+files/PciMultimedia.txt
-- 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/2100778 Title: Asus Prime B550 plus requires acpi=off which turns off SMP Status in linux package in Ubuntu: Confirmed Bug description: 1) Ubuntu Release No LSB modules are available. Description: Ubuntu 24.04.2 LTS Release: 24.04 2) Package version 6.8.0-54.56 3) What you expected to happen I expected the system to be able to boot with ACPI. 4) What happened instead The booting process got stuck halfway through (about when the console adjusts it's resolution) if the kernel wasn't given the "acpi=off" parameter. However, with this parameter, SMP doesn't work and my CPU is reduced to a single core from 16 with HT. I followed this guide for troubleshooting: https://wiki.ubuntu.com/DebuggingACPI The system refused to boot even with "acpi=ht". --- ProblemType: Bug AlsaVersion: Advanced Linux Sound Architecture Driver Version k6.8.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.28.1-0ubuntu3.3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/timer', '/dev/snd/seq', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/hwC0D0', '/dev/snd/controlC0', '/dev/snd/by-path', '/dev/snd/pcmC1D0p', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D2c', '/dev/snd/hwC1D0', '/dev/snd/controlC1'] failed with exit code 1: CRDA: N/A Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer' CasperMD5CheckResult: pass DistroRelease: Ubuntu 24.04 InstallationDate: Installed on 2025-02-27 (5 days ago) InstallationMedia: Ubuntu-Server 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: ASUS System Product Name Package: linux (not installed) ProcFB: 0 simpledrmdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-54-generic root=UUID=9259c67a-bfe3-40d8-ba70-ac06402f21b2 ro acpi=off ProcVersionSignature: Ubuntu 6.8.0-54.56-generic 6.8.12 RelatedPackageVersions: linux-restricted-modules-6.8.0-54-generic N/A linux-backports-modules-6.8.0-54-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: noble Uname: Linux 6.8.0-54-generic x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False acpidump: dmi.bios.date: 09/29/2024 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3611 dmi.board.asset.tag: Default string dmi.board.name: PRIME B550-PLUS dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3611:bd09/29/2024:br5.17:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB550-PLUS:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: ASUS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2100778/+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
