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[Bug 835431] Re: AMD Phenom II X6 1100T cpu (Turbo Core Feature Again)

 

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/835431

Title:
  AMD Phenom II X6 1100T cpu (Turbo Core Feature Again)

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  SYSTEM
  - Default install of Ubuntu Natty 64 bits, followed by sudo apt-get update && sudo apt-upgrade.
  - Kernel 2.6.38-11-generic #48-Ubuntu SMP x86_64 GNU/Linux

  PROBLEM
  Inability of Ubuntu to properly recognize the CPU max speed and steps when the AMD Turbo Core feature is enabled.

  DETECTION
  - al@HOME-OFFICE:~$ dmesg | grep powernow
  [    3.410931] powernow-k8: Found 1 AMD Phenom(tm) II X6 1100T Processor (6 cpu cores) (version 2.20.00)
  [    3.410937] powernow-k8: Core Performance Boosting: on.
  [    3.410959] powernow-k8:    0 : pstate 0 (3300 MHz)
  [    3.410960] powernow-k8:    1 : pstate 1 (2500 MHz)
  [    3.410961] powernow-k8:    2 : pstate 2 (1700 MHz)
  [    3.410962] powernow-k8:    3 : pstate 3 (800 MHz)

  - The same can obviously be seen easily on the CPU Frequency Applet.
  It reports the "standard" CPU speeds (800MHz, 1.7GHz, 2.5GHz, 3.3GHz)

  - However my CPU has Turbo Core activated in BIOS, with max speed =
  4.3 GHz.

  HISTORIC
  - This used to be a problem in powernow-k8 module, which was already fixed. See:
  - http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=b810e94c9d8e3fff6741b66cd5a6f099a7887871
  - http://ubuntuforums.org/showthread.php?t=1709264

  - Yet, its happening again.

  Thanks,
  Effenberg
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  al         1972 F.... pulseaudio
   /dev/snd/pcmC0D0p:   al         1972 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'SB'/'HDA ATI SB at 0xfbff4000 irq 16'
     Mixer name	: 'Realtek ALC892'
     Components	: 'HDA:10ec0892,104383c0,00100302'
     Controls      : 35
     Simple ctrls  : 20
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xfe67c000 irq 19'
     Mixer name	: 'Nvidia GPU 11 HDMI/DP'
     Components	: 'HDA:10de0011,10de0101,00100100'
     Controls      : 16
     Simple ctrls  : 4
  DistroRelease: Ubuntu 11.10
  HibernationDevice: RESUME=UUID=c9d45480-15d9-4329-8026-f18a9c8fb904
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  MachineType: System manufacturer System Product Name
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-10-generic root=UUID=c03a4fd5-c162-48ce-9d91-d549a8f02b64 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-10-generic N/A
   linux-backports-modules-3.0.0-10-generic  N/A
   linux-firmware                            1.60
  RfKill:
   
  Tags:  oneiric running-unity
  Uname: Linux 3.0.0-10-generic x86_64
  UpgradeStatus: Upgraded to oneiric on 2011-09-01 (4 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 07/18/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2301
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M4A89GTD-PRO/USB3
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2301:bd07/18/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A89GTD-PRO/USB3:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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