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defer-
Tux's lil' helper
Tux's lil' helper


Joined: 11 Jun 2007
Posts: 116
Location: Finland

PostPosted: Tue Jul 23, 2013 9:08 am    Post subject: Automatically set powersaving options on startup Reply with quote

Powertop suggests the following powersaving options. How can i automatically set these options on startup? Is it possible with sysctl.conf or is there some other configs for these options?

Code:
ethtool -s eth0 wol d;
iw wlan0 set power_save on;
echo "disable" > '/proc/acpi/ibm/bluetooth';
echo '60' > '/sys/module/snd_hda_intel/parameters/power_save';

echo 'min_power' > '/sys/class/scsi_host/host0/link_power_management_policy';
echo 'min_power' > '/sys/class/scsi_host/host1/link_power_management_policy';
echo 'min_power' > '/sys/class/scsi_host/host2/link_power_management_policy';
echo 'min_power' > '/sys/class/scsi_host/host3/link_power_management_policy';

echo 'auto' > '/sys/bus/usb/devices/1-6/power/control';
echo 'auto' > '/sys/bus/usb/devices/4-1/power/control';
echo 'auto' > '/sys/bus/usb/devices/4-2/power/control';

echo 'auto' > '/sys/bus/pci/devices/0000:00:1a.7/power/control';
echo 'auto' > '/sys/bus/pci/devices/0000:00:02.0/power/control';
echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.0/power/control';
echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.1/power/control';
echo 'auto' > '/sys/bus/pci/devices/0000:15:00.5/power/control';
echo 'auto' > '/sys/bus/pci/devices/0000:15:00.4/power/control';

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amospalla
n00b
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Joined: 08 Mar 2013
Posts: 23

PostPosted: Tue Jul 23, 2013 9:51 am    Post subject: Reply with quote

What about a shell script in /etc/local.d named for example /etc/local.d/powersaving.start with the content you wrote ?
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haarp
Guru
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Joined: 31 Oct 2007
Posts: 353

PostPosted: Wed Jul 24, 2013 8:46 am    Post subject: Reply with quote

/etc/udev/rules.d/10-local-powersave.rules (adjust for your own USB devices):
Code:
## PCI device autosuspend
ACTION=="add", SUBSYSTEM=="pci", ATTR{power/control}="auto"

## USB device autosuspend
# Only include known onboard devices of the Thinkpad W700/W701
# as other devices may not handle autosuspend well (input devices)
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="0765", ATTR{idProduct}=="5001", ATTR{power/control}="auto" # Colorimeter
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="08ff", ATTR{idProduct}=="2810", ATTR{power/control}="auto" # Fingerprint Reader (W700)
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="147e", ATTR{idProduct}=="2016", ATTR{power/control}="auto" # Fingerprint Reader (W701)
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="0a5c", ATTR{idProduct}=="2145", ATTR{power/control}="auto" # Bluetooth (W700)
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="0a5c", ATTR{idProduct}=="217f", ATTR{power/control}="auto" # Bluetooth (W701)
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="17ef", ATTR{idProduct}=="1008", ATTR{power/control}="auto" # Lenovo Hub
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="17ef", ATTR{idProduct}=="480c", ATTR{power/control}="auto" # Webcam (W700)
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="17ef", ATTR{idProduct}=="4816", ATTR{power/control}="auto" # Webcam (W701)
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="17ef", ATTR{idProduct}=="6004", ATTR{power/control}="auto" # Tablet
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="1d6b", ATTR{power/control}="auto"                          # USB Hub
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="8087", ATTR{idProduct}=="0020", ATTR{power/control}="auto" # Intel USB Hub


/etc/modprobe.d/local.conf:
Code:
options snd_hda_intel powersave=1


/etc/bluetooth/main.conf:
Code:
# What value should be assumed for the adapter Powered property when
# SetProperty(Powered, ...) hasn't been called yet. Defaults to true
####InitiallyPowered = true
InitiallyPowered = false

# Remember the previously stored Powered state when initializing adapters
####RememberPowered = true
RememberPowered = false


pm-utils takes care of the others when AC is unplugged:

To enable SATA ALPM (did produce hangs when entering suspend on one of my laptops): /etc/pm/config.d/local:
Code:
SATA_ALPM_ENABLE="true"


If the following command fails, add pcie_aspm=force to your kernel command line
Code:
echo powersave >/sys/module/pcie_aspm/parameters/policy


Wifi should switch to powersave mode by default
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defer-
Tux's lil' helper
Tux's lil' helper


Joined: 11 Jun 2007
Posts: 116
Location: Finland

PostPosted: Thu Jul 25, 2013 12:28 pm    Post subject: Reply with quote

Thanks for advices. Heres how i did :

/etc/udev/rules.d/10-local-powersave.rules
Code:

# PCI runtime power management
ACTION=="add", SUBSYSTEM=="pci", ATTR{power/control}="auto"

# USB autosuspend
ACTION=="add", SUBSYSTEM=="usb", ATTR{power/control}="auto"
ACTION=="add", SUBSYSTEM=="usb", TEST=="power/autosuspend" ATTR{power/autosuspend}="60"

# SATA active link power management
SUBSYSTEM=="scsi_host", KERNEL=="host*", ATTR{link_power_management_policy}="min_power"

# Wlan power save
ACTION=="add", SUBSYSTEM=="net", KERNEL=="wlan*" RUN+="/usr/sbin/iw %k set power_save on"

# Disable bluetooth
SUBSYSTEM=="rfkill", ATTR{type}=="bluetooth", ATTR{state}="0"

# Disable wake-on-LAN
ACTION=="add", SUBSYSTEM=="net", KERNEL=="eth*" RUN+="/usr/sbin/ethtool -s %k wol d"


/etc/local.d/powersave.start
Code:
echo "disable" > /proc/acpi/ibm/bluetooth

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