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[madbiologist <990731@xxxxxxxxxxxxxxxxxx>]

I neglected to mention that to use the new power management feature on R700 and newer hardware (other than APUs) requires installation of the latest AMD graphics microcode (ucode) files to /lib/firmware/radeon
These are available at http://people.freedesktop.org/~agd5f/radeon_ucode/
Get the version ending in "smc".

R700 basically means Radeon HD 4000 series and newer. However note that
according to Wikipedia and
http://xorg.freedesktop.org/wiki/RadeonFeature/#index5h2 the Mobility
Radeon HD 4225/4250 is a RV620 chip, so anyone with one of those
shouldn't need the updated firmware files.

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https://bugs.launchpad.net/bugs/990731

Title:
  Request: Scale back CPU and GPU to avoid notebook overheating

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I've found this happening an increasing amount since upgrading to
  12.04.

  When under heavy load my laptop has all fans at full speed but still
  often reachs critical heat (on the hard drive I think) and shuts
  itself off.

  I think this is mostly poor hardware design but it would be awesome if
  linux was able to detect dangerous temperatures, and if fans are
  already on full, scale CPU and GPU operations down to reduce heat so
  that a fatal shut-off can be avoided.

  I have an HP Pavilion with Intel core i7 and ATI Radeon HD 5000.

  I've installed indicator-cpufreq so I can manually control CPU frequency when at high load. This seems to effectively reduce the temperature but it would be good if the system could do this automatically.
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ben        2326 F.... pulseaudio
   /dev/snd/controlC0:  ben        2326 F.... pulseaudio
   /dev/snd/pcmC0D0p:   ben        2326 F...m pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd4100000 irq 48'
     Mixer name	: 'IDT 92HD81B1X5'
     Components	: 'HDA:111d7605,103c1448,00100402'
     Controls      : 16
     Simple ctrls  : 9
  Card1.Amixer.info:
   Card hw:1 'Generic'/'HD-Audio Generic at 0xd4020000 irq 49'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100200'
     Controls      : 6
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=d8ef4f63-5434-4d95-80cd-649702cfb3b3
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC
  NonfreeKernelModules: fglrx
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=e8743556-da7b-440d-bc19-956ba1e48ca5 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  Tags:  precise staging precise staging
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 10/21/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.23
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 1448
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 65.35
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.23:bd10/21/2010:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr058A110000242B10010020100:rvnHewlett-Packard:rn1448:rvr65.35:cvnHewlett-Packard:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv6 Notebook PC
  dmi.product.version: 058A110000242B10010020100
  dmi.sys.vendor: Hewlett-Packard

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