/etc/laptop-mode/conf.d/cpufreq.conf is in laptop-mode-tools 1.71-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Configuration file for Laptop Mode Tools module cpufreq.
#
# For more information, consult the laptop-mode.conf(8) manual page.
#
###############################################################################
# CPU frequency scaling and throttling
# ------------------------------------
#
#__COMMENT Laptop mode tools can automatically adjust your kernel CPU frequency
#__COMMENT settings. This includes upper and lower limits and scaling governors.
#__COMMENT There is also support for CPU throttling, on systems that don't support
#__COMMENT frequency scaling.
#__COMMENT
#__COMMENT This feature only works on 2.6 kernels.
#__COMMENT
#__COMMENT
#__COMMENT IMPORTANT: In versions 1.36 and earlier, these settings were included in the
#__COMMENT main laptop-mode.conf configuration file. If they are still present, they
#__COMMENT overrule the settings in this file. To fix this, simply delete the settings
#__COMMENT from the main config file.
#
###############################################################################
# Enable debug mode for this module
# Set to 1 if you want to debug this module
DEBUG=0
#
# Should laptop mode tools control the CPU frequency settings?
#
# Set to 0 to disable
CONTROL_CPU_FREQUENCY="auto"
#
# Legal values are "slowest" for the slowest speed that your
# CPU is able to operate at, "fastest" for the fastest speed,
# "medium" for some value in the middle, or any value listed in
# /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies.
# The "governor" can be any governor installed on your system, this usually
# includes "ondemand", "conservative", and "performance". The
# "IGNORE_NICE_LOAD" setting specifies that background programs that have
# a low priority ("nice level") should not cause the CPU frequency to
# be increased. (You generally want this to be enabled in battery mode.)
#
BATT_CPU_MAXFREQ=fastest
BATT_CPU_MINFREQ=slowest
BATT_CPU_GOVERNOR=ondemand
BATT_CPU_IGNORE_NICE_LOAD=1
LM_AC_CPU_MAXFREQ=fastest
LM_AC_CPU_MINFREQ=slowest
LM_AC_CPU_GOVERNOR=ondemand
LM_AC_CPU_IGNORE_NICE_LOAD=1
NOLM_AC_CPU_MAXFREQ=fastest
NOLM_AC_CPU_MINFREQ=slowest
NOLM_AC_CPU_GOVERNOR=ondemand
NOLM_AC_CPU_IGNORE_NICE_LOAD=0
#
# Should laptop mode tools control the CPU throttling? This is only useful
# on processors that don't have frequency scaling.
# (Only works when you have /proc/acpi/processor/CPU*/throttling.)
#
# This is only useful on older P4 processors that do not support frequency
# scaling. On such processors, this is the only way to reduce power consumption
# but at the cost of higher performance penalty.
#
# Enable this only if you have a processor that does not support frequency scaling
# On most new processors, you might want to disable it.
#
# Set to 0 to disable.
CONTROL_CPU_THROTTLING=0
#
# Legal values are "maximum" for the maximum (slowest) throttling level,
# "minimum" for minimum (fastest) throttling level, "medium" for a value
# somewhere in the middle (this is usually 50% for P4s), or any value listed
# in /proc/acpi/processor/CPU*/throttling. Be careful when using "maximum":
# this may be _very_ slow (in fact, with P4s it slows down the processor
# by a factor 8).
#
BATT_CPU_THROTTLING=medium
LM_AC_CPU_THROTTLING=medium
NOLM_AC_CPU_THROTTLING=minimum
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