Boosted Pstates just not visible to powernow driver: https://bugzilla.kernel.org/show_bug.cgi?id=42648#c1
** Bug watch added: Linux Kernel Bug Tracker #42648 http://bugzilla.kernel.org/show_bug.cgi?id=42648 ** Also affects: linux via http://bugzilla.kernel.org/show_bug.cgi?id=42648 Importance: Unknown Status: Unknown ** Changed in: linux (Ubuntu) Status: Triaged => Invalid -- 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/877877 Title: AMD Turbo Core not working on 11.10 Status in The Linux Kernel: Unknown Status in linux package in Ubuntu: Invalid Bug description: The kernel says: $ dmesg | grep powernow [ 1.877385] powernow-k8: Found 1 AMD Phenom(tm) II X6 1100T Processor (6 cpu cores) (version 2.20.00) [ 1.877398] powernow-k8: Core Performance Boosting: on. [ 1.877423] powernow-k8: 0 : pstate 0 (3300 MHz) [ 1.877424] powernow-k8: 1 : pstate 1 (2500 MHz) [ 1.877425] powernow-k8: 2 : pstate 2 (1700 MHz) [ 1.877426] powernow-k8: 3 : pstate 3 (800 MHz) But when I'm running a singe threaded application, cpuinfo says: $ cat /proc/cpuinfo | grep MHz cpu MHz : 800.000 cpu MHz : 3300.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 when I should be getting a boost to 3700MHz. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-generic 3.0.0.12.14 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: andrew 1687 F.... pulseaudio /dev/snd/controlC0: andrew 1687 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe024000 irq 16' Mixer name : 'Realtek ALC889A' Components : 'HDA:10ec0885,1458a102,00100101' Controls : 41 Simple ctrls : 23 Card1.Amixer.info: Card hw:1 'REC'/'Roland UA-30 (44100Hz, Analog REC) at usb-0000:00:12.2-4.4, full speed' Mixer name : 'USB Mixer' Components : 'USB0582:0006' Controls : 5 Simple ctrls : 4 Date: Wed Oct 19 00:10:33 2011 HibernationDevice: RESUME=UUID=24678a6c-8273-4e5b-ab43-a38d55e7455c InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. GA-MA785GM-US2H ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=a5fa7ee5-ecfa-45f8-89a7-5b5e1c12d067 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.0.0-12-generic N/A linux-backports-modules-3.0.0-12-generic N/A linux-firmware 1.60 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/08/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F12a dmi.board.name: GA-MA785GM-US2H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF12a:bd07/08/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA785GM-US2H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA785GM-US2H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: GA-MA785GM-US2H dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/877877/+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