aceofspades19's blog

Random Rants

Battery Life Improvement in Slackware

I’ve always tried to improve my battery life in Linux because its never seemed quite up to par with the performance in Windows. So I’ve gone through a long process to find any possible tweak to improve battery life. This included installed laptop-mode-tools which improved it A LOT. But most recently I’ve discovered a new tweak - which may or may not work on your hardware. This is the relevant portion of my lilo.conf:

1
2
3
4
5
image = /boot/vmlinuz
  root = /dev/sda1
  append=" resume=/dev/sda4 radeon.audio=1 pcie_aspm=force"
  label = Linux
  read-only

I added ‘pcie_aspm=force’ to the append options and it increased my battery life by about a half hour hour. Now in my research I found depending on the hardware it may disable something, it didn’t on my Toshiba laptop, but proceed at your own risk. Thats all for today!