Hi David, I found a laptop with AMD Ryzen 5 APU and gave it a try, before this patch turbostat will terminate with return code 243:
Welcome to Ubuntu Impish Indri (development branch) (GNU/Linux 5.11.0-16-generic x86_64) $ sudo turbostat turbostat version 20.09.30 - Len Brown <l...@kernel.org> CPUID(0): AuthenticAMD 0x10 CPUID levels; 0x80000020 xlevels; family:model:stepping 0x17:60:1 (23:96:1) CPUID(1): SSE3 MONITOR - - - TSC MSR - HT - CPUID(6): APERF, No-TURBO, No-DTS, No-PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, No-EPB CPUID(7): No-SGX RAPL: 234 sec. Joule Counter Range, at 280 Watts /dev/cpu_dma_latency: 2000000000 usec (default) current_driver: acpi_idle current_governor: menu current_governor_ro: menu cpu4: POLL: CPUIDLE CORE POLL IDLE cpu4: C1: ACPI FFH MWAIT 0x0 cpu4: C2: ACPI IOPORT 0x414 cpu4: C3: ACPI IOPORT 0x415 cpu4: cpufreq driver: acpi-cpufreq cpu4: cpufreq governor: schedutil cpufreq boost: 1 cpu0: MSR_RAPL_PWR_UNIT: 0x000a1003 (0.125000 Watts, 0.000015 Joules, 0.000977 sec.) $ echo $? 243 After installing debs from https://people.canonical.com/~phlin/kernel/lp-1928183-turbostat-cezanne/ and reboot to 5.11.0-18, the turbostat command seems to be working (not terminate early with 243): $ sudo turbostat turbostat version 20.09.30 - Len Brown <l...@kernel.org> CPUID(0): AuthenticAMD 0x10 CPUID levels; 0x80000020 xlevels; family:model:stepping 0x17:60:1 (23:96:1) CPUID(1): SSE3 MONITOR - - - TSC MSR - HT - CPUID(6): APERF, No-TURBO, No-DTS, No-PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, No-EPB CPUID(7): No-SGX RAPL: 234 sec. Joule Counter Range, at 280 Watts /dev/cpu_dma_latency: 2000000000 usec (default) current_driver: acpi_idle current_governor: menu current_governor_ro: menu cpu4: POLL: CPUIDLE CORE POLL IDLE cpu4: C1: ACPI FFH MWAIT 0x0 cpu4: C2: ACPI IOPORT 0x414 cpu4: C3: ACPI IOPORT 0x415 cpu4: cpufreq driver: acpi-cpufreq cpu4: cpufreq governor: schedutil cpufreq boost: 1 cpu0: MSR_RAPL_PWR_UNIT: 0x000a1003 (0.125000 Watts, 0.000015 Joules, 0.000977 sec.) Core CPU Avg_MHz Busy% Bzy_MHz TSC_MHz IRQ POLL C1 C2 C3 POLL% C1% C2% C3% CorWatt PkgWatt - - 2 0.08 1920 3716 542 22 67 0 457 0.00 0.06 0.00 99.81 0.01 3.66 0 0 2 0.10 1873 3717 50 0 3 0 48 0.00 0.04 0.00 99.84 0.00 3.66 0 1 0 0.03 1860 3717 15 0 0 0 15 0.00 0.00 0.00 99.93 1 2 1 0.04 2759 3717 28 0 2 0 26 0.00 0.01 0.00 99.91 0.00 1 3 0 0.02 2636 3717 12 1 1 0 10 0.00 0.01 0.00 99.93 2 4 1 0.02 3079 3717 22 1 6 0 15 0.00 0.01 0.00 99.92 0.00 2 5 1 0.04 2790 3717 30 0 13 0 20 0.00 0.37 0.00 99.55 4 6 2 0.14 1738 3717 74 4 12 0 60 0.00 0.07 0.00 99.79 0.00 4 7 2 0.10 1747 3717 48 4 9 0 35 0.02 0.05 0.00 99.82 5 8 1 0.04 2305 3717 19 0 0 0 19 0.00 0.00 0.00 99.93 0.00 5 9 2 0.09 1876 3717 46 3 5 0 38 0.00 0.04 0.00 99.84 6 10 2 0.09 2114 3717 50 4 7 0 39 0.02 0.07 0.00 99.81 0.00 6 11 5 0.31 1657 3717 148 5 9 0 132 0.01 0.08 0.00 99.65 -- 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/1928183 Title: turbostat doesn't work with AMD Cezanne APUs Status in linux package in Ubuntu: Confirmed Status in linux source package in Hirsute: Incomplete Bug description: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=985681 describes the issue and necessary cherry-pick (https://git.kernel.org/linus/301b1d3a9104f4f3a8ab4171cf88d0f55d632b41). ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-tools-common 5.11.0-17.18 ProcVersionSignature: Ubuntu 5.11.0-17.18-generic 5.11.12 Uname: Linux 5.11.0-17-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu65 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: bartle 2287 F.... pulseaudio /dev/snd/controlC0: bartle 2287 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: GNOME-Flashback:GNOME Date: Wed May 12 01:04:15 2021 MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. PackageArchitecture: all ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-17-generic root=UUID=27b86d91-8e89-49da-ad17-45901581ce2f ro RelatedPackageVersions: linux-restricted-modules-5.11.0-17-generic N/A linux-backports-modules-5.11.0-17-generic N/A linux-firmware 1.197 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes SourcePackage: linux UpgradeStatus: Upgraded to hirsute on 2021-04-22 (19 days ago) dmi.bios.date: 04/23/2021 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: P2.10 dmi.board.name: B550 Phantom Gaming-ITX/ax dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrP2.10:bd04/23/2021:br5.17:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnB550PhantomGaming-ITX/ax:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.sku: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. 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