The powertop āauto tuneā option sets the optimal values for a variety of power saving options. If an update to Powertop has new optimal values, then they are automatically applied.
I could fall back to manually changing what Powertop recommends today (see below) but the āauto tuneā option is helpful as it sets what is recommended with the current version of Powertop. Iām hoping that I have misunderstood the blog post or that someone will be willing to keep maintaining Powertop.
# Power Management at boot. Auto-tune replaces all lines below with the best values at the time!
/usr/sbin/powertop --auto-tune
#
# VM writeback timeout
##echo '1500' > '/proc/sys/vm/dirty_writeback_centisecs'
#
# SATA link power Management for storage hosts {0..5}
##for x in /sys/class/scsi_host/*/link_power_management_policy; do echo 'med_power_with_dipm' > $x; done
#
# Runtime power management for PCI devices
##for a in /sys/bus/pci/devices/*/ata?/power/control; do echo 'auto' > $i; done
##for i in /sys/bus/pci/devices/*/power/control; do echo 'auto' > $i; done
## echo 'auto' > '/sys/bus/pci/devices/0000:00:13.0/ata2/power/control';
#
# Autosuspend for USB devices
##for x in /sys/bus/usb/devices/*/power/control; do echo 'auto' > $x; done
#
# Enable HD Audio power save
##echo '1' > /sys/module/snd_hda_intel/parameters/power_save
#
# Disable NMI Watchdog, cause it causes wakeups:
##echo '0' > /proc/sys/kernel/nmi_watchdog
#
# Disable Wake On Lan (WOL) for green and red interfaces:
##/usr/sbin/ethtool -s green0 wol d
##/usr/sbin/ethtool -s blue0 wol d
##/usr/sbin/ethtool -s orange0 wol d
##/usr/sbin/ethtool -s red0 wol d