kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Ben A, thank you for you comment. Verified the Trusty configuration as per:
git clone git://kernel.ubuntu.com/ubuntu/ubuntu-trusty.git && cd ubuntu-trusty && grep -r CONFIG_X86_POWERNOW_K8= && grep -r CONFIG_X86_ACPI_CPUFREQ= | grep debian
debian.master/config/config.common.ubuntu:CONFIG_X86_POWERNOW_K8=y
debian.master/config/config.common.ubuntu:CONFIG_X86_ACPI_CPUFREQ=y

As per the Ubuntu maintainer discussion comments (ex.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/355232/comments/15
) it would seem a strong preference exists not to adjust the defaul
config to =m. Would there be a way to achieve undervolt for those who
want it in a default install, without modifying the noted configurations
or compiling anything (I did notice
https://wiki.ubuntu.com/UndervoltingHowto)?

** Changed in: linux (Ubuntu)
   Importance: Low => Wishlist

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

** Tags added: bot-stop-nagging trusty

** Description changed:

  Binary package hint: linux-image-generic
  
- acpi-cpufreq is not a module anymore and is directly included in the kernel.
- I think it is a bad decision because it is now very difficult to use phc to undervolt a processor : we need to compile the whole kernel with acpi-cpufreq as a module instead of just compile the module.
- http://www.linux-phc.org/index.php
+ I am using ubuntu jaunty. acpi-cpufreq is not a module anymore and is
+ directly included in the kernel. I think it is a bad decision because it
+ is now very difficult to use phc to undervolt a processor : we need to
+ compile the whole kernel with acpi-cpufreq as a module instead of just
+ compile the module. http://www.linux-phc.org/index.php
  
- I am using ubuntu jaunty.
+ Hence, I am requesting in the kernel config change:
+ CONFIG_X86_POWERNOW_K8=y
+ CONFIG_X86_ACPI_CPUFREQ=y
  
- Do you think we can have it back as a module for the final release ?
+ to:
+ CONFIG_X86_POWERNOW_K8=m
+ CONFIG_X86_ACPI_CPUFREQ=m

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/355232

Title:
  acpi-cpufreq/powernow-k8 should not be built-in into the kernel image

Status in “linux” package in Ubuntu:
  Triaged
Status in “linux” source package in Lucid:
  In Progress

Bug description:
  Binary package hint: linux-image-generic

  I am using ubuntu jaunty. acpi-cpufreq is not a module anymore and is
  directly included in the kernel. I think it is a bad decision because
  it is now very difficult to use phc to undervolt a processor : we need
  to compile the whole kernel with acpi-cpufreq as a module instead of
  just compile the module. http://www.linux-phc.org/index.php

  Hence, I am requesting in the kernel config change:
  CONFIG_X86_POWERNOW_K8=y
  CONFIG_X86_ACPI_CPUFREQ=y

  to:
  CONFIG_X86_POWERNOW_K8=m
  CONFIG_X86_ACPI_CPUFREQ=m

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