kernel-packages team mailing list archive

[madbiologist <570589@xxxxxxxxxxxxxxxxxx>]

Julien - poor hardware design is a possibility. Also make sure you have
removed all dust from inside the computer, particulary from the CPU and
GPU fans and heatsinks (if it's a desktop, open the case, if it's a
laptop at the very least run a vacuum cleaner nozzle along the external
air vents).  You can also put the edge of a book under the back edge of
your laptop so that it is raised off the desk at a slight angle, or
purchase a laptop cooling pad (with USB powered fans) to sit the laptop
on.

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".

-- 
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/570589

Title:
  Lucid: Overheating due to no PM for ATI KMS

Status in “linux” package in Ubuntu:
  Fix Committed

Bug description:
  As you know the code in Lucid's -32 kernel doesn't have support for
  power management on ATI cards with KMS (which is default). This is not
  a problem for desktop users, but laptop users with beefy cards may run
  into severe overheating issues. I expect the forums to flood with
  these problems once lucid is final. I have experienced this on two
  (laptop) machines at home: GPU and CPU share a heatsink thus the CPU
  gets very hot too when idling. In one case this lead to the CPU (both
  are C2Ds) being constantly stuck at 800 MHz a few minutes after
  booting (Once it went over 75° or something like that), in the other
  case the CPU temps went up to 80° in idle even with the fans at full
  speed. Switching to fglrx OR a newer kernel and PM OR UMS and PM fixes
  this, but I feel KMS on ATI as a default is a bad decision right now.
  I hope this gets fixed with 10.10 as the PM code hits MMs kernel.

  Most likely we won't be able to do anything about this bug (unless there's a kernel upgrade in one of lucid's point releases) so I guess the purpose of this bugreport is more or less to track this issue during the development of MM.
  --- 
  Architecture: amd64
  DistroRelease: Ubuntu 10.04
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100113)
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=de_AT:de:de_DE:de_CH:de_LU:de_LI:de_BE:en
   PATH=(custom, user)
   LANG=de_AT.utf8
   SHELL=/bin/bash
  Tags: lucid
  Uname: Linux 2.6.34-rc5-klausi x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare tape vboxusers video

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/570589/+subscriptions