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  1. John's Notes and Documentation
  2. Linux
  3. Tuning

Surface Pro 4 Power Tuning

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Last updated 4 months ago

Audio

after one second:

echo "options snd_hda_intel power_save=1" > /etc/modprobe.d/audio_powersave.conf

Kernel Tuning

. It can generate a lot of interrupts, causing a noticeable increase in power usage.

echo "kernel.nmi_watchdog = 0" > /etc/sysctl.d/disable_watchdog.conf

PCI

Enable 

echo "ACTION=="add", SUBSYSTEM=="pci", ATTR{power/control}="auto"" > /etc/udev/rules.d/pci_pm.rules

References

Idle audio card
Disable NMI watchdog
PCI Runtime Power Management
Arch Wiki
Powertop
Power Management