Bug#425409: ITP: linux-phc -- userspace interface to control the core voltage of processors
Owner: Armin Berres <email@example.com>
* Package name : linux-phc
Version : 0.2.10
Upstream Author : Fabrice Bellamy, Roman Schwarze
* URL : https://www.dedigentoo.org/trac/linux-phc/
* License : (GPL)
Programming Lang: (C)
Description : userspace interface to control the core voltage of processors
Linux Processor Hardware Control is a patch for the Linux kernel that
provides a userspace interface to control the core voltage of a computer
The main use of this interface is to lower the core voltage of a
laptop's CPU ("undervolt"). The goal is to reduce the laptop's
temperature so the cooling fan can safely run at a slower speed.
Another goal of undervolting is to reduce the power consumption of a
laptop and thus extend its battery lifetime.
Linux-PHC also adds additional built-in frequency/voltage tables to the
Linux kernel for some Pentium-M CPU models. This is particularly useful
for laptops with broken ACPI that can't use the speedstep-centrino
cpufreq driver at all.
Linux-PHC currently only supports the Intel Pentium-M class of
processors. The Intel Centrino Core duo/solo processors are also
supported but with some limitations.
The patch should work for kernels 2.6.15 - 2.6.21.
A first package can be found at
I'm searching for a sponsor -- if anyone is interested... :-)
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.18-99 (PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash