I have a Lenovo Thinkpad w541 with Haswell Procesor (i7-4810MQ ). I am unable to load the a Thinkpad module for battery improvement.
joselugo@joselugo:~$ sudo tlp-stat -b --- TLP 0.7 --------------------------------------------
+++ ThinkPad Extended Battery Functions tp-smapi = inactive (kernel module 'tp_smapi' load error)<<<<<<<<<<
tpacpi-bat = active
+++ ThinkPad Battery Status: BAT0 (Main / Internal) /sys/class/power_supply/BAT0/manufacturer = SMP /sys/class/power_supply/BAT0/model_name = 45N1149 /sys/class/power_supply/BAT0/cycle_count = (not supported) /sys/class/power_supply/BAT0/energy_full_design = 56160 [mWh] /sys/class/power_supply/BAT0/energy_full = 56040 [mWh] /sys/class/power_supply/BAT0/energy_now = 55950 [mWh] /sys/class/power_supply/BAT0/power_now = 0 [mW] /sys/class/power_supply/BAT0/status = Unknown
tpacpi-bat.BAT0.startThreshold = 96 [%] tpacpi-bat.BAT0.stopThreshold = 100 [%] tpacpi-bat.BAT0.forceDischarge = 0
I read this: If you are installing on a recent Thinkpad that has an Ivy Bridge or newer processor (X230, T430, T530, etc.), tp_smapi will not work. You will be mostly limited to thinkpad-acpi capabilities. You can however set battery charge thresholds with tpacpi-bat.
Can anyone confirm if the Thinkpad w541 falls on this category?
I am having terrible battery performance, I have installed powertop, tdp, thinkpad modules, THERMALD AND INTEL P-STATE. I am not seeing to much difference since I have installed/uninstalled them and combining them without much success. I would love to hear the comments from someone having the same laptop and seeing their results with their battery performance.
Thanks in advance,