От laptop-mode, который я использовал для 9.04 я отказался, поскольку муторно и непрозрачно. Проще для осмысления pm-utils.
- Устраним баг, не дающий включить режим сохранения энергии для Wi-Fi
- Установим apmd, pm-utils и expect
$ sudo apt-get install apmd pm-utils expect hdparm libnotify-bin Мне expect нужен для управления роутером NBG460N EE из командной строки.
- Cоздадим скрипт /usr/lib/pm-utils/power.d/99-savings.sh
$ sudo gedit /usr/lib/pm-utils/power.d/99-savings.sh
Копируем листинг к окно редактора и сохраняем.
###################################################################################### # A script to agressively toggle power management between high # performance and very low power usage. # For more information on each of these options, see http://www.lesswatts.org ################# Ghanges history ################################################### #VERSION=0.12 # 31.08.2010 Testing Ubuntu 10.04. Small changes for Wi-Fi control #VERSION=0.13 # 21.09.2010 Adding services control: # evolution-alarm-notify, # postfix, # rsyslog #VERSION=0.2 # 23.07.2011 Modified for Ubintu 11.04 for Thinkpad x220 4290rw1 VERSION=0.23 # 27.07.2011 Added store value (Brithness, user, etc ) to /tmp/powersave.ini # Fix notify-send message # Added CPU core disabling. Disable cores not affected for power saving # # # To install: # # sudo apt-get install apmd pm-utils expect hdparm libnotify-bin # # Save this file to /usr/lib/pm-utils/power.d/99-savings.sh # cd /usr/lib/pm-utils/power.d # sudo install 99-savings.sh /etc/pm/sleep.d # sudo install 99-savings.sh /etc/pm/power.d # INI=/tmp/powersave.ini aUsb() { ################################################# ## USB Subsystem ## # 0.7-0.8 W case "$1" in false) #ac_power for i in /sys/bus/usb/devices/*/power/control do echo "on" > $i done ;; true) #batt_power for i in /sys/bus/usb/devices/*/power/control do echo "auto" > $i done for i in /sys/bus/usb/devices/*/power/autosuspend do echo 1 > $i done echo 1 > /sys/module/usbcore/parameters/autosuspend ;; esac } aSata() { case "$1" in false) #ac_power # Set the SATA to max performance for i in /sys/class/scsi_host/host*/link_power_management_policy do echo max_performance > $i done ;; true) #batt_power # Set SATA to minimum power # 0.7 W for i in /sys/class/scsi_host/host*/link_power_management_policy do echo min_power > $i done ;; esac } aPci() { case "$1" in false) #ac_power for i in /sys/bus/pci/devices/*/power/control do echo on > $i done ;; true) #batt_power for i in /sys/bus/pci/devices/*/power/control do echo auto > $i done ;; esac } aI2c() { case "$1" in false) #ac_power for i in /sys/bus/i2c/devices/i2c-*/power/control do echo on > $i done ;; true) #batt_power for i in /sys/bus/i2c/devices/i2c-*/power/control do echo auto > $i done ;; esac } aHdd() { case "$1" in false) #ac_power # Set the drive to mostly stay awake. Some may want to change -B 200 # to -B 255 to avoid accumulating Load_Cycle_Counts # -S 240 => put in standby after 20 minutes idle # -B 200 => do not permit spindown # -M => not supported by my drive hdparm -B 200 -S 240 -M 254 /dev/sda # Remount ext3/4 filesystems so the journal commit only happens every 60 # seconds. By default this is 5 but, I prefer to reduce the disk # activity a bit. mount -o remount,commit=60,atime / ;; true) #batt_power hdparm -B 1 -S 4 -M 128 /dev/sda mount -o remount,noatime,commit=600 / ;; esac } aSsd() { # add these commands in the /etc/rc.local # echo deadline > /sys/block/sda/queue/scheduler # echo 1 > /sys/block/sda/queue/iosched/fifo_batch # sysctl -w vm.swappiness=1 # Strongly discourage swapping # sysctl -w vm.vfs_cache_pressure=50 # Don't shrink the inode cache aggressively case "$1" in false) #ac_power ;; true) #batt_power ;; esac } aI915() { case "$1" in false) #ac_power echo 0 > /sys/module/i915/parameters/powersave ;; true) #batt_power echo 1 > /sys/module/i915/parameters/powersave ;; esac } aWlan() { # WiFi power savings. case "$1" in false) #ac_power /sbin/iwconfig wlan0 power off txpower 14 ;; true) #batt_power /sbin/iwconfig wlan0 power on txpower 4 ;; esac } aLan() { case "$1" in false) #ac_power # set the ethernet max speed. ethtool -s eth0 wol d ethtool -s eth0 autoneg off speed 1000 ;; true) #batt_power # set the ethernet power savings. # ~ 0.4 W ethtool -s eth0 wol d ethtool -s eth0 autoneg off speed 100 ;; esac } aCpu() { ################################################# ## CPU ## case "$1" in false) #ac_power for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor do echo performance > $i done # Enable All Core CPU for i in /sys/devices/system/cpu/cpu*/online do echo 1 > $i done # Shedule Multitreading echo 0 > /sys/devices/system/cpu/sched_mc_power_savings ;; true) #batt_power for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor do echo powersave > $i done # Disable cores not affected for power saving # for i in /sys/devices/system/cpu/cpu*/online # do # echo 0 > $i # done echo 1 > /sys/devices/system/cpu/sched_mc_power_savings ;; esac } aSnd() { case "$1" in false) #ac_power echo 0 > /sys/module/snd_hda_intel/parameters/power_save ;; true) #batt_power # Turn off sound card power savings # < 0.1 W echo 10 > /sys/module/snd_hda_intel/parameters/power_save ;; esac } aBt() { case "$1" in false) #ac_power # Enable the bluetooth driver rfkill unblock bluetooth ;; true) #batt_power # Remove the bluetooth driver # 0.3-0.4 W rfkill block bluetooth ;; esac } aDaemons() { ################################################# ## demons, services ## case "$1" in false) #ac_power # 1. Evolution alarm and integrations /usr/lib/evolution/2.32/evolution-alarm-notify & #/usr/lib/evolution/e-calendar-factory & #/usr/lib/evolution/e-addressbook-factory & # 2. Starting Sendmail server #postfix start # 3. Starting CouchDB & desktopcouch dbus-send --session --dest=org.desktopcouch.CouchDB --print-reply --type=method_call / org.desktopcouch.CouchDB.getPort ;; true) #batt_power # 1. Evolution alarm killall evolution-alarm-notify #killall e-calendar-factory #killall e-addressbook-factory # 2. Stopping Sendmail server #postfix stop # 3. Stoping CouchDB & desktopcouch killall beam.smp killall desktopcouch-service ;; esac } # < 0.1 W aWebcam() { case "$1" in false) #ac_power # Enable the webcam driver modprobe uvcvideo ;; true) #batt_power # Remove the webcam driver modprobe -r uvcvideo ;; esac } aMemory() { case "$1" in false) #ac_power # Set kernel dirty page value back to default echo 10 > /proc/sys/vm/dirty_ratio echo 5 > /proc/sys/vm/dirty_background_ratio # Only wakeup every 60 seconds to see if we need to write dirty pages # By default this is every 5 seconds but, I prefer 60 to reduce disk # activity. echo 6000 > /proc/sys/vm/dirty_writeback_centisecs ;; true) #batt_power # Reduce disk activity by waiting up to 10 minutes before doing writes echo 90 > /proc/sys/vm/dirty_ratio echo 1 > /proc/sys/vm/dirty_background_ratio echo 60000 > /proc/sys/vm/dirty_writeback_centisecs ;; esac } aBrightness() { case "$1" in false) #ac_power # Setup maximum brigthness # Thinkpad x220, Ubuntu 11.04 vBAT_BRI=$(cat /sys/devices/virtual/backlight/acpi_video0/brightness) echo $vAC_BRI > /sys/devices/virtual/backlight/acpi_video0/brightness ;; true) #batt_power # Setup brigthness 30% vAC_BRI=$(cat /sys/devices/virtual/backlight/acpi_video0/brightness) echo $vBAT_BRI > /sys/devices/virtual/backlight/acpi_video0/brightness ;; esac } aMisk() { case "$1" in false) #ac_power # Turn off the laptop mode disk optimization echo 0 > /proc/sys/vm/laptop_mode echo tsc > /sys/devices/system/clocksource/clocksource0/current_clocksource # enable logging service rsyslog start # ZiXEL nbg460n. Set maximum wifi speed if [ -f /etc/pm/802.11.bgn ]; then /etc/pm/802.11.bgn 1; fi # enable winbindd if [ -f /etc/init.d/winbind ]; then /etc/init.d/winbind start; fi # Powersave pci express echo performance > /sys/module/pcie_aspm/parameters/policy ;; true) #batt_power # Set laptop disk write mode echo 5 > /proc/sys/vm/laptop_mode echo hpet > /sys/devices/system/clocksource/clocksource0/current_clocksource # disable logging service rsyslog stop # ZiXEL nbg460n. Set standard wifi speed if [ -f /etc/pm/802.11.bgn ]; then /etc/pm/802.11.bgn 0; fi # disable winbind if [ -f /etc/init.d/winbind ]; then /etc/init.d/winbind stop ; fi echo powersave > /sys/module/pcie_aspm/parameters/policy ;; esac } aNotify() { case "$1" in false) #ac_power MSGH="AC" MSGT="Maximum Performance Mode" MSGI="ac-adapter" ;; true) #battery_power MSGH="BATT" MSGT="Battery Power Saving" MSGI="battery" ;; esac vUSER=`ps -C gnome-session -o user=` #find UID user who start gnome-session vPIDS=`pgrep -u $vUSER gnome-session` #find PID for PID in $vPIDS; do vDBUS_SESSION_BUS_ADDRESS=$(grep -z DBUS_SESSION_BUS_ADDRESS /proc/$PID/environ \ | sed -e 's/DBUS_SESSION_BUS_ADDRESS=//') DBUS_SESSION_BUS_ADDRESS=$vDBUS_SESSION_BUS_ADDRESS DISPLAY=:0.0 sudo -u $vUSER notify-send "$MSGH" "$MSGT" -i "$MSGI" done } aLoadini() { if [ -e $INI ]; then echo "Restore Value" while read LINE do PARM=$(echo "$LINE" | awk '{print $1}') KEY=$(echo "$LINE" | awk '{print $2}') case $PARM in "AC_BRI") vAC_BRI=$KEY ;; "BAT_BRI") vBAT_BRI=$KEY ;; "USER") vUSER=$KEY ;; "PIDS") vPIDS=$KEY ;; "DBUS_SESSION_BUS_ADDRESS") vDBUS_SESSION_BUS_ADDRESS=$KEY ;; esac echo "$PARM $KEY" done < $INI else echo "Reset Value" vAC_BRI=15 vBAT_BRI=8 vUSER="" vPIDS="" vDBUS_SESSION_BUS_ADDRESS="" fi } aSaveini() { echo "AC_BRI $vAC_BRI" > $INI echo "BAT_BRI $vBAT_BRI" >> $INI echo "USER $vUSER" >> $INI echo "PIDS $vPIDS" >> $INI echo "DBUS_SESSION_BUS_ADDRESS $vDBUS_SESSION_BUS_ADDRESS" >> $INI } ########################################################## ## Apply settings ## aLoadini aCpu $1 aUsb $1 aI2c $1 aSata $1 aPci $1 if [ $(hdparm -i /dev/sda | grep Model | awk '{print substr($2,1,3)}') = "SSD" ]; then aSsd $1 else aHdd $1 fi aI915 $1 aWlan $1 aLan $1 aSnd $1 aBt $1 aWebcam $1 aMemory $1 aDaemons $1 aBrightness $1 aMisk $1 aNotify $1 aSaveini - Для управления роутером NBG460N EE из командной строки создадим скрипт:
sudo gedit /etc/pm/802.11.bgn Копируем листинг к окно редактора и сохраняем.
#!/usr/bin/expect ############################################ # Set 802.11 /b/g mode for ZiXEL nbg460n ee # Need to install expect spawn "telnet" "192.168.1.1" expect "Password:" send "myPassword\r" expect "NBG460NEE>" send "wlan radio [lindex $argv 0]\r" expect "NBG460NEE>" send "exit\r" interact
Справедливости ради скажу, что этот скрипт не является надежным.
Если возникают проблемы с соединением при переходе в режим сохранения энергии лучше от него отказаться и не включать режим 802.11n.
- Установка:
$ cd /usr/lib/pm-utils/power.d $ sudo chmod 755 99-savings.sh $ sudo install 99-savings.sh /etc/pm/sleep.d $ sudo install 99-savings.sh /etc/pm/power.d
- Проверка:
Запускаем powertop
$ sudo powertop
и проверяем, что при питании от батареи он не дает никаких рекомендаций.
Полезные ссылки:- Ubuntu Power Management
- Ubuntu Documentations. Power Management. Reduced Power
- ThinkPad. Idle consumptions.
31/08/2010. Проверил работу на версии 10.04. Поправил команды управления Wi-Fi адаптером.
12/12/2010. С роутером ZiXEL NBG460N EE в режиме, когда на роутере включен протокол 802.11 n/b/g и сохранение энергии на карточке ноута, происходило нарушение работы выражающееся в задержках ping до 6 секунд.
Для восстановления работоспособности роутер переводится в режим 802.11 n/b скриптом 802.11.bgn (требуется expect).
23/07/2011. Переработал структуру скрипта. Обеспечил работу для Ubuntu 11.04 на Thinkpad x220 4290RW1.
10/12/2011. Протестировал на Ubuntu 11.10.
Статья не актуальна. В ядре 2.6.32.7 (2.6.32-02063207-generic) устранено много багов. В том числе включена поддержка powersave для iwlagn (intel 5100). После установки нового ядра нужно проверить фунционпльность, как указано в конце статьи.
