Friday, 29 January 2010

How to run Linux on Acer Timeline 3810T at 7.0W

Ubuntu Forums - View Single Post - [ubuntu] Acer Timeline 3810T
The Acer Timeline laptop is still one of the best choices when it comes to ultra-thin Linux laptops, only second to the Asus UL30/UL80 laptop series.

Recently reported in, a user has managed to bring the Linux power usage in a Acer Timeline 3810T-8737 model down to 7.0W using this instructions:
# Author: Riskable
# Description: Enables every power saving feature I know of

# Enable Intel HD Audio power saving
echo 10 > /sys/module/snd_hda_intel/parameters/power_save
echo Y > /sys/module/snd_hda_intel/parameters/power_save_controller
echo 1 > /dev/dsp # Gotta make a sound to turn it on

# Enable various kernel power saving features
echo 1500 > /proc/sys/vm/dirty_writeback_centisecs

# Enable SATA power management
for i in /sys/class/scsi_host/*; do echo "min_power" > $i/link_power_management_policy; cat $i/link_power_management_policy; done

# Enable Wifi power management
/sbin/iwconfig wlan0 power on

# Enable the most aggressive hard drive power savings
hdparm -B 1 -S 12 /dev/sda # Note: May not work on the Acer Timeline's hard drive

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