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linrunner / TLP

TLP - Optimize Linux Laptop Battery Life
https://linrunner.de/tlp
GNU General Public License v2.0
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Conflicting Lenovo conservation mode tresholds #727

Closed cankurttekin closed 4 months ago

cankurttekin commented 4 months ago

tlp-stat output:

+++ Battery Care Plugin: lenovo Supported features: charge threshold Driver usage:

  • vendor (ideapad_laptop) = active (charge threshold) Parameter value range:
  • STOP_CHARGE_THRESH_BAT0: 0(off), 1(on) -- battery conservation mode

/sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode = 1 (60%)

+++ Battery Status: BAT0 /sys/class/power_supply/BAT0/manufacturer = Sunwoda /sys/class/power_supply/BAT0/model_name = L22D4PA1 /sys/class/power_supply/BAT0/cycle_count = 12 /sys/class/power_supply/BAT0/energy_full_design = 71000 [mWh] /sys/class/power_supply/BAT0/energy_full = 69980 [mWh] /sys/class/power_supply/BAT0/energy_now = 63890 [mWh] /sys/class/power_supply/BAT0/power_now = 4411 [mW] /sys/class/power_supply/BAT0/status = Discharging

Charge = 91.3 [%] Capacity = 98.6 [%]

Hello, i dont know if it is the right place to report my issue. before making any changes on my new non-thinkpad lenovo laptop it was set default to 75-80 tresholds. I made some configurations but it did not apply and it charged to 100 so i wanted to enable conservation mode again but now its set to 60 percent. It shows 75-80 on windows Lenovo vantage app, but i cant set it to 80 with tlp and now it ignores everything and charges to 100 whatever i do.

linrunner commented 4 months ago

Hi, on Lenovo laptops, the threshold is stored in the hardware and will affect the other system in dual boot setups. In your case I recommend to adjust the threshold under Windows only, so that the different tools do not get in each other's way.

To do so, first remove the threshold from /etc/tlp.conf by commenting the setting. The line should look like this:

#STOP_CHARGE_THRESH_BAT0=1

Then, delete it from the hardware using

sudo tlp fullcharge

Last, reboot to Windows, remove the threshold there and set it again.

ps. the 60% threshold claimed by TLP is based on an incorrect assumption made during development. In reality, the threshold percentage is defined by the Lenovo firmware, and some models, including yours, have a threshold of 80% instead of 60%. Version 1.7 (unreleased) will not show the percentarge anymore, but only 0 (off) or 1 (on).

linrunner commented 4 months ago

Good solution. Thanks for your feedback.