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Hi!
After I installed laptop-mode-tools, I can't have my cpu freq scaling as I always did.
Well, I'll explain better: without laptop-mode-tools I used to set my cpu freq via /etc/rc.local, and everything was fine.
But now I need laptop-mode-tools and I have to say, everything works very well...But here comes the sun, uhm no, here comes the problem: when i plug in and out my ac cable, my frequency will stay at its lowest. The same thing happens after suspend... I can't understand...
I tried with acpid, obviously, and for example, when i plug in ac power, lcd brightness changes as expected from my config files, but cpufreq will stay just as I said.
So, here is my cpufreq-info now:
limiti hardware: 1000 MHz - 1.67 GHz
frequenze disponibili: 1.67 GHz, 1.33 GHz, 1000 MHz
gestori disponibili: conservative, ondemand, userspace, powersave, performance
gestore attuale: la frequenza deve mantenersi tra 1000 MHz e 1000 MHz.
Il gestore "performance" può decidere quale velocità usare
in questo intervallo.(it's italian sorry)
this is /etc/laptop-mode/conf.d/cpufreq.conf
#
# Configuration file for Laptop Mode Tools module cpufreq.
#
# For more information, consult the laptop-mode.conf(8) manual page.
#
###############################################################################
# CPU frequency scaling and throttling
# ------------------------------------
#
# Laptop mode tools can automatically adjust your kernel CPU frequency
# settings. This includes upper and lower limits and scaling governors.
# There is also support for CPU throttling, on systems that don't support
# frequency scaling.
#
# This feature only works on 2.6 kernels.
#
#
# IMPORTANT: In versions 1.36 and earlier, these settings were included in the
# main laptop-mode.conf configuration file. If they are still present, they
# overrule the settings in this file. To fix this, simply delete the settings
# 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=1
#
# 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=performance
LM_AC_CPU_IGNORE_NICE_LOAD=1
NOLM_AC_CPU_MAXFREQ=fastest
NOLM_AC_CPU_MINFREQ=slowest
NOLM_AC_CPU_GOVERNOR=performance
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=minimumI'm using kernel 3.1.6 with no testing repo.
I'm using pm-utils to suspend.
As far as I understand, the problem is in one of the file laptop-mode installs on my hd...the only solution I found was to remove laptop-mode...but I need it because it's simple and i have no time to find something else,
Thanks everybody!
Bye!
Last edited by nierro (2011-12-31 10:19:09)
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Ok, after i removed laptop-mode-tools and managed to have my cpu freq scaling,lcd brightness and eeepc she through rc.local and acpid events , i found that the real problem is located in ondemand governor: after suspend it stays at lowest freq possible.
If i change then my governor, with for example performance, it works, but if i change again to ondemand, it stays to its lowest...any idea?
EDIT: tried with granola and userspace governor, but nothing changes... tried on my other laptop with kernel 3.1.5-ARCH, and there everything it's ok, but i noticed i haven't acpi and acpid installed there...so may be the problem is related to them? (i use the same cpufreq driver in these laptops)
I'll try to kick out acpi and acpid and i'll make you know what happens.
Last edited by nierro (2011-12-31 09:04:54)
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OK, i understood where the problem was...SUPER HYBRID ENGINE seems to not work well in this kernel...with laptop-mode-tools or through acpid I set it to 0x302 that is the most saving power level, but that locked freqs to their lowest level.
Now I set it to 1 and everything is works very well...
Hope this can help, may be someone is having the same problem...let me know if it is my netbook bug or is a kernel bug! I have an asus eeepc 1215P.
Bye!
EDIT: i'm probably an id..t... SHE only locks the cpu to the lowest freq...so it is not a laptop-mode or kernel bug...it is SHE feature...sorry for my stupid thread
Last edited by nierro (2012-01-04 15:06:41)
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