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Mandriva 2008 power management


coverup
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The only other thing that could be causing it is the cpufreq service, if for some bizarre reason it's got some weird frequency scaling config that's a little too sensitive.

I suspect frequcny scaling too. Here is the content of /etc/sysconfig/cpufreq

more /etc/sysconfig/cpufreq
#uncomment to set cpufreq governor after module load
#possible choices are ondemand powersave userspace performance
#GOVERNOR=ondemand
#minimum frequency
#MIN_FREQ=
#maximum frequency
#MAX_FREQ=
#Uncomment to use acpi-cpufreq as fallback
#USE_ACPI_CPUFREQ=yes

As you can see everything is commented out. Yet the frequency does jump from 800 Mhz to 1200Mhz and even higher. Apparently, Mandriva now relies on kpowersave to do speedstepping and spindown. I tried to disable it and enable klaptop to no avail; see this post https://mandrivausers.org/index.php?showtopic=48124 . So how I can take control of frequency scaling and where do I adjust spindown policy? I suspect that the the problem occurs when Emacs tries to do auto-save while the drive is already "put to sleep". Emacs is not a KDE application, and I can only suspect that the communication is broken between kpowersave and non KDE applications. That is, this is the situation descried by iphitus.

Edited by coverup
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Got nothing to do with cpufreq. The mandriva default laptop_mode configuration must set the drive spindown time. Poke around at the .conf's in /etc/laptop-mode (assuming mandriva puts it in the same place as arch).

 

Also, check if kpowersave controls hdd spindown time.

 

James

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I am affraid, it's above my head. Could you please advise what I should change in those files?

 

Many thanks

 

/usr/share/config/kpowersaverc

[General]
lockOnSuspend=true
lockOnLidClose=true
ActionOnLidClose=
ActionOnLidCloseValue=
ActionOnPowerButton=SHUTDOWN
ActionOnPowerButtonValue=
ActionOnSleepButton=SUSPEND2RAM
ActionOnS2DiskButton=SUSPEND2DISK
buttonsAllowedActions=SHUTDOWN,LOGOUT_DIALOG,SUSPEND2DISK,SUSPEND2RAM
Autostart=true
AutostartNeverAsk=false
unmountExternalOnSuspend=true
lockMethod=automatic
timeToFakeKeyAfterLock=5000
forceDpmsOffOnLidClose=true
psMsgAsPassivePopup=false
autoInactiveBlacklist=mplayer,gmplayer,kaffeine,xine,mencoder,cdrecord,cdrecord-dvd,cdrdao,growisofs,kdetv,xawtv,realplay.bin
schemes=Performance,Powersave,Presentation,Acoustic
ac_scheme=Performance
battery_scheme=Powersave
batteryWarning=12
batteryWarningAction=
batteryWarningActionValue=
batteryLow=7
batteryLowAction=BRIGHTNESS
batteryLowActionValue=1
batteryCritical=2
batteryCriticalAction=SHUTDOWN
batteryCriticalActionValue=
batteryAllowedActions=SHUTDOWN,SUSPEND2DISK,SUSPEND2RAM,CPUFREQ_POWERSAVE,CPUFRE
Q_PERFORMANCE,CPUFREQ_DYNAMIC,BRIGHTNESS

[default-scheme]
specSsSettings=false
disableSs=false
blankSs=false
specPMSettings=false
standbyAfter=5
suspendAfter=10
powerOffAfter=15
disableDPMS=false
autoSuspend=false
autoInactiveAction=_NONE_
autoInactiveActionAfter=0
autoInactiveSchemeBlacklistEnabled=false
autoInactiveSchemeBlacklist=
enableBrightness=true
brightnessPercent=100
cpuFreqPolicy=DYNAMIC
cpuFreqPolicyPerformance=51

[Performance]
specSsSettings=false
specPMSettings=true
standbyAfter=10
suspendAfter=20
powerOffAfter=30
disableDPMS=false
autoSuspend=false
autoInactiveAction=_NONE_
autoInactiveActionAfter=0
autoInactiveSchemeBlacklistEnabled=false
autoInactiveSchemeBlacklist=
enableBrightness=true
brightnessPercent=100
cpuFreqPolicy=DYNAMIC
cpuFreqDynamicPerformance=75

[Powersave]
specSsSettings=true
disableSs=false
blankSs=true
specPMSettings=true
standbyAfter=2
suspendAfter=3
powerOffAfter=5
disableDPMS=false
autoSuspend=false
autoInactiveAction=_NONE_
autoInactiveActionAfter=0
autoInactiveSchemeBlacklistEnabled=false
autoInactiveSchemeBlacklist=
enableBrightness=true
brightnessPercent=50
cpuFreqPolicy=DYNAMIC
cpuFreqDynamicPerformance=25

[Presentation]
specSsSettings=true
disableSs=true
specPMSettings=true
standbyAfter=10
suspendAfter=20
powerOffAfter=30
disableDPMS=true
autoSuspend=false
autoInactiveAction=_NONE_
autoInactiveActionAfter=0
autoInactiveSchemeBlacklistEnabled=false
autoInactiveSchemeBlacklist=
enableBrightness=true
brightnessPercent=100
cpuFreqPolicy=DYNAMIC
cpuFreqDynamicPerformance=60

[Acoustic]
specSsSettings=true
disableSs=false
specPMSettings=true
standbyAfter=5
suspendAfter=7
powerOffAfter=10
disableDPMS=false
autoSuspend=false
autoInactiveAction=_NONE_
autoInactiveActionAfter=0
autoInactiveSchemeBlacklistEnabled=false
autoInactiveSchemeBlacklist=
enableBrightness=true
brightnessPercent=100
cpuFreqPolicy=DYNAMIC
cpuFreqDynamicPerformance=50

 

 

/etc/laptop-mode/laptop-mode.conf

###############################################################################
#
# Configuration for Laptop Mode Tools
# -----------------------------------
#
# There is a "system" to the configuration setting names:
#	CONTROL_something=0/1   Determines whether Laptop Mode Tools controls 
#							something
#	LM_something=value	  Value of "something" when laptop mode is active
#	NOLM_something=value	Value of "something" when laptop mode is NOT active
#	AC_something=value	  Value of "something" when the computer is running
#							on AC power
#	BATT_something=value	Value of "something when the computer is running on
#							battery power
#
# There can be combinations of LM_/NOLM_ and AC_/BATT_ prefixes, but the
# available prefixes are different for each setting. The available ones are 
# documented in the manual page, laptop-mode.conf(8). If there is no LM_/NOLM_ 
# in a setting name, then the value is used independently of laptop mode state, 
# and similarly, if there is no AC_/BATT_, then the value is used independently
# of power state.
#
# Some options only work on ACPI systems. They are marked ACPI-ONLY.
#
# Note that this configuration file is a fragment of bash shell script: you
# can use all the features of the bash scripting language to achieve your
# desired configuration.
###############################################################################



###############################################################################
# Configuration debugging
# -----------------------
###############################################################################

# Set this to 1 if you want to see a lot of information when you start/stop 
# laptop_mode.
VERBOSE_OUTPUT=0



###############################################################################
# When to enable laptop mode
# --------------------------
#
# "Laptop mode" is the mode in which laptop mode tools makes the computer
# consume less power. This includes the kernel "laptop_mode" feature, which
# allows your hard drives to spin down, as well as various other settings which
# can be tweaked by laptop mode tools. You can enable or disable all of these
# settings using the CONTROL_... options further down in this config file.
###############################################################################

# Enable laptop mode when on battery power.
ENABLE_LAPTOP_MODE_ON_BATTERY=1

# Enable laptop mode when on AC power.
ENABLE_LAPTOP_MODE_ON_AC=0

# Enable laptop mode when the laptop's lid is closed, even when we're on AC
# power? (ACPI-ONLY)
ENABLE_LAPTOP_MODE_WHEN_LID_CLOSED=0



###############################################################################
# When to enable data loss sensitive features
# -------------------------------------------
#
# When data loss sensitive features are disabled, laptop mode tools acts as if
# laptop mode were disabled, for those features only.
#
# Data loss sensitive features include:
# - laptop_mode (i.e., delayed writes)
# - hard drive write cache
#
# All of the options that follow can be set to 0 in order to prevent laptop
# mode tools from using them to stop data loss sensitive features. Use this
# when you have a battery that reports the wrong information, that confuses
# laptop mode tools.
#
# Disabling data loss sensitive features is ACPI-ONLY.
###############################################################################

# Disable all data loss sensitive features when the battery level (in % of the
# battery capacity) reaches this value.
MINIMUM_BATTERY_CHARGE_PERCENT=3

# Disable data loss sensitive features when the battery reports its state
# as "critical".
DISABLE_LAPTOP_MODE_ON_CRITICAL_BATTERY_LEVEL=1


###############################################################################
# Controlled hard drives and partitions
# -------------------------------------
#
# For spinning down your hard drives, laptop mode will remount file systems and
# adjust hard drive spindown timeouts. These parameters specify which
# devices and partitions are affected by laptop mode.
###############################################################################

# The drives that laptop mode controls.
# Separate them by a space, e.g. HD="/dev/hda /dev/hdb". The default is a
# wildcard, which will get you all your IDE and SCSI/SATA drives.
HD="/dev/[hs]d[abcdefgh]"

# The partitions (or mount points) that laptop mode controls.
# Separate the values by spaces. Use "auto" to indicate all partitions on drives
# listed in HD. You can add things to "auto", e.g. "auto /dev/hdc3". You can
# also specify mount points, e.g. "/mnt/data".
PARTITIONS="auto /dev/mapper/*"


# If this is enabled, laptop mode tools will assume that SCSI drives are really
# SATA drives that only _look_ like SCSI drives, and will use hdparm to control
# them. Set this to 0 if you have /dev/sd devices and you want laptop mode
# tools to use the "sdparm" command to control them. 
ASSUME_SCSI_IS_SATA=1


###############################################################################
# Hard drive behaviour settings
# -----------------------------
#
# These settings specify how laptop mode tools will adjust the various
# parameters of your hard drives and file systems.
###############################################################################

# Maximum time, in seconds, of work that you are prepared to lose when your
# system crashes or power runs out. This is the maximum time that Laptop Mode
# will keep unsaved data waiting in memory before spinning up your hard drive.
LM_BATT_MAX_LOST_WORK_SECONDS=600
LM_AC_MAX_LOST_WORK_SECONDS=360

# Should laptop mode tools control readahead?
CONTROL_READAHEAD=1

# Read-ahead, in kilobytes. You can spin down the disk while playing MP3/OGG
# by setting the disk readahead to a reasonable size, e.g. 3072 (3 MB).
# Effectively, the disk will read a complete MP3 at once, and will then spin 
# down while the MP3/OGG is playing. Don't set this too high, because the 
# readahead is applied to _all_ files that are read from disk.
LM_READAHEAD=3072
NOLM_READAHEAD=128

# Should laptop mode tools add the "noatime" option to the mount options when 
# laptop mode is enabled?
CONTROL_NOATIME=0

# Should laptop mode tools control the hard drive idle timeout settings?
CONTROL_HD_IDLE_TIMEOUT=1

# Idle timeout values. (hdparm -S)
# Default is 2 hours on AC (NOLM_HD_IDLE_TIMEOUT_SECONDS=7200) and 20 seconds
# for battery and for AC with laptop mode on.
LM_AC_HD_IDLE_TIMEOUT_SECONDS=20
LM_BATT_HD_IDLE_TIMEOUT_SECONDS=20
NOLM_HD_IDLE_TIMEOUT_SECONDS=7200

# Should laptop mode tools control the hard drive power management settings?
CONTROL_HD_POWERMGMT=0

# Power management for HD (hdparm -B values)
BATT_HD_POWERMGMT=1
LM_AC_HD_POWERMGMT=255
NOLM_AC_HD_POWERMGMT=255

# Should laptop mode tools control the hard drive write cache settings?
CONTROL_HD_WRITECACHE=0

# Write cache settings for HD (hdparm -W values)
NOLM_AC_HD_WRITECACHE=1
NOLM_BATT_HD_WRITECACHE=0
LM_HD_WRITECACHE=0



###############################################################################
# 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.
###############################################################################

# Should laptop mode tools control the maximum CPU frequency?
CONTROL_CPU_FREQUENCY=0

# 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.
BATT_CPU_MAXFREQ=medium
BATT_CPU_MINFREQ=slowest
BATT_CPU_GOVERNOR=ondemand
LM_AC_CPU_MAXFREQ=fastest
LM_AC_CPU_MINFREQ=slowest
LM_AC_CPU_GOVERNOR=ondemand
NOLM_AC_CPU_MAXFREQ=fastest
NOLM_AC_CPU_MINFREQ=slowest
NOLM_AC_CPU_GOVERNOR=performance

# 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.)
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



###############################################################################
# Syslog configuration control
# ----------------------------
# 
# Syslog daemons have a tendency to sync their log files when entries are
# written to them. This causes disks to spin up, which is not very nice when
# you're trying to save power. The syslog.conf can be tweaked to *not* sync
# a given file, by prepending the log file name with a dash, like this:
#
# 	mail.*		-/var/log/mail/mail.log
#
# Using the following options, you can let laptop mode switch between
# different syslog configurations depending on whether you are working on
# battery or on AC power. To set this up, start by configuring these options
# for your syslog daemon, and then run lm-syslog-setup to create the various
# files. Then edit the laptop mode-specific syslog configuration files to
# remove the syncs only when laptop mode is active.
###############################################################################

# Should laptop mode tools control which syslog.conf should be used?
CONTROL_SYSLOG_CONF=0

# Laptop mode tools controls syslog.conf by replacing /etc/syslog.conf (or
# whatever you specify in SYSLOG_CONF) by a link to the files configured here.
# NOTE: these files are NOT created by default, and if they do not
# exist this feature will not work. You can run the script
# /usr/sbin/lm-syslog-setup to set things up.
LM_AC_SYSLOG_CONF=/etc/syslog-on-ac-with-lm.conf
NOLM_AC_SYSLOG_CONF=/etc/syslog-on-ac-without-lm.conf
BATT_SYSLOG_CONF=/etc/syslog-on-battery.conf

# Signal this program when syslog.conf has been replaced.
SYSLOG_CONF_SIGNAL_PROGRAM=syslogd

# This is the syslog configuration file that should be replaced by a link to the
# other files.
SYSLOG_CONF=/etc/syslog.conf



###############################################################################
# X display settings
# ------------------
#
# Using these settings, you can let laptop mode tools control the X display
# standby timeouts.
###############################################################################

# Should laptop mode tools control DPMS standby settings for X displays?
CONTROL_DPMS_STANDBY=0

# These settings specify the standby timeout for the X display,
# in seconds. The suspend and poweroff timeouts are somewhat
# larger values derived from these values.
BATT_DPMS_STANDBY=300
LM_AC_DPMS_STANDBY=1200
NOLM_AC_DPMS_STANDBY=1200



###############################################################################
# Terminal settings
# -----------------
#
# Using these settings, you can let laptop mode tools control the terminal
# blanking timeouts.
###############################################################################

# Should laptop mode tools control terminal blanking settings?
CONTROL_TERMINAL=0

# These settings specify the blanking and powerdown timeouts. Note that
# the powerdown timeout is counted from the moment the screen is blanked,
# i.e. BLANK_MINUTES=2 and POWERDOWN_MINUTES=5 means the screen powers
# down after 7 minutes of inactivity. The range for all these settings is
# 1 to 60 minutes, or 0 to disable.
BATT_TERMINAL_BLANK_MINUTES=1
BATT_TERMINAL_POWERDOWN_MINUTES=2
LM_AC_TERMINAL_BLANK_MINUTES=10
LM_AC_TERMINAL_POWERDOWN_MINUTES=10
NOLM_AC_TERMINAL_BLANK_MINUTES=10
NOLM_AC_TERMINAL_POWERDOWN_MINUTES=50



###############################################################################
# Auto-hibernation settings
# -------------------------
#
# Using these settings, you can make laptop mode tools automatically put your
# computer into hibernation when the battery level goes critically low.
#
# This feature only works on ACPI, and only works on computers whose batteries
# give off battery events often enough.
###############################################################################

# Should laptop mode tools perform auto-hibernation?
ENABLE_AUTO_HIBERNATION=0

# The hibernation command that is to be executed when auto-hibernation
# is triggered.
HIBERNATE_COMMAND=/usr/sbin/hibernate

# Auto-hibernation battery level threshold, in percentage of the battery's
# total capacity.
AUTO_HIBERNATION_BATTERY_CHARGE_PERCENT=2

# Enable this to auto-hibernate if the battery reports that its level is
# "critical".
AUTO_HIBERNATION_ON_CRITICAL_BATTERY_LEVEL=1



###############################################################################
# Start/Stop Programs settings
# ----------------------------
#
# Laptop mode tools can automatically start and stop programs when entering
# various power modes. Put scripts accepting "start" and "stop" parameters
# in the directories /etc/laptop-mode/batt-stop, batt-start, lm-ac-stop,
# lm-ac-start, nolm-ac-stop and nolm-ac-start. Laptop mode will call the
# scripts in a state-"stop" directory with the "stop" parameter when entering
# the state in question, and it will call the same scripts with the "start"
# parameter when leaving the state. Scripts in a state-"start" directory are
# called with the "start" parameter when the specified state is entered, and
# with the "stop" parameter when the specified state is left.
###############################################################################

# Should laptop mode start and stop programs? 
CONTROL_START_STOP=1



###############################################################################
# Settings you probably don't want to touch
# -----------------------------------------
#
# It is usually not necessary to change these parameters. They are included
# for completeness' sake.
###############################################################################

# Change mount options on partitions in PARTITIONS? You don't really want to
# disable this. If you do, then your hard drives will probably not spin down
# anymore.
CONTROL_MOUNT_OPTIONS=1

# Dirty synchronous ratio.  At this percentage of dirty pages the process
# which calls write() does its own writeback.
LM_DIRTY_RATIO=60
NOLM_DIRTY_RATIO=40

# Allowed dirty background ratio, in percent.  Once DIRTY_RATIO has been
# exceeded, the kernel will wake pdflush which will then reduce the amount
# of dirty memory to dirty_background_ratio.  Set this nice and low, so once
# some writeout has commenced, we do a lot of it.
LM_DIRTY_BACKGROUND_RATIO=1
NOLM_DIRTY_BACKGROUND_RATIO=10

# kernel default settings -- don't touch these unless you know what you're 
# doing.
DEF_UPDATE=5
DEF_XFS_AGE_BUFFER=15
DEF_XFS_SYNC_INTERVAL=30
DEF_XFS_BUFD_INTERVAL=1
DEF_MAX_AGE=30

# This must be adjusted manually to the value of HZ in the running kernel
# on 2.4, until the XFS people change their 2.4 external interfaces to work in
# centisecs. This can be automated, but it's a work in progress that still
# needs# some fixes. On 2.6 kernels, XFS uses USER_HZ instead of HZ for
# external interfaces, and that is currently always set to 100. So you don't
# need to change this on 2.6.
XFS_HZ=100

# Seconds laptop mode has to to wait after the disk goes idle before doing
# a sync.
LM_SECONDS_BEFORE_SYNC=2

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It looks like the problem is irreparable. This is what the laptop-mode FAQ says:

I experience system freezes every once in a while, is this normal?

 

This is a bug in hardware or the Linux kernel, triggered by something laptop mode tools does. Try setting CONTROL_HD_POWERMGMT=0. This fixes the freezes for some people. The default for CONTROL_HD_POWERMGMT was changed to 0 in version 1.11 for exactly this reason. Otherwise, for now, downgrade to a kernel 2.6.10 or earlier.

I already have CONTROL_HD_POWERMGMT = 0, hence I must downgrade?!

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