Cannot recalibrate new battery with tp_smapi and tlp

boarim · Yesterday 18:46:04

I bought a new battery for my ThinkPad T400s. I want to recalibrate it because the power reported by the system is not accurate. I’m using tlp to manage the power settings. I installed tp_smapi-dkms from the AUR to have access to the recalibration feature. However, once installed and the laptop rebooted, tlp does not recognize tp_smapi:

# tlp-stat -b

--- TLP 1.10.2 --------------------------------------------

+++ Battery Care
Plugin: thinkpad
Supported features: charge thresholds
Driver usage:
* natacpi (thinkpad_acpi) = active (charge thresholds)
Parameter value ranges:
* START_CHARGE_THRESH_BAT0/1:  0(off)..96(default)..99
* STOP_CHARGE_THRESH_BAT0/1:   1..100(default)

+++ ThinkPad Battery Status: BAT0 (Main / Internal)
/sys/class/power_supply/BAT0/manufacturer                   = SANYO 
/sys/class/power_supply/BAT0/model_name                     = 42T4688
/sys/class/power_supply/BAT0/cycle_count                    =      0 (or not supported)
/sys/class/power_supply/BAT0/energy_full_design             =  39960 [mWh]
/sys/class/power_supply/BAT0/energy_full                    =  38890 [mWh]
/sys/class/power_supply/BAT0/energy_now                     =  18720 [mWh]
/sys/class/power_supply/BAT0/power_now                      =  34197 [mW]
/sys/class/power_supply/BAT0/status                         = Charging

/sys/class/power_supply/BAT0/charge_control_start_threshold =     85 [%]
/sys/class/power_supply/BAT0/charge_control_end_threshold   =     90 [%]

Charge                                                      =   48.1 [%]
Capacity                                                    =   97.3 [%]

The battery threshold feature is provided by natacpi natively (I already had it without tp_smapi installed). But no battery recalibration feature is reported. Which is confirmed by the following error:

# tlp recalibrate
Error: battery recalibrate is not supported.

What am I missing? Do I need another package?

seth · Yesterday 19:56:06

dkms status
lsmod | grep -i smapi

boarim · Today 05:55:31

Both commands print nothing. So I guess the module smapi is not loaded.

I use the default linux kernel by the way.

Last edited by boarim (Today 05:55:53)

seth · Today 06:42:49

https://wiki.archlinux.org/title/Dynami … le_Support
https://archlinux.org/packages/core/x86 … x-headers/

Pay attention to errors during the build process

boarim · Today 13:14:42

Ok I installed linux-headers. There wasn’t any errorsfrom pacman during installation. Then I rebooted but still no change within tlp. Here’s the output of the previous commands:

# dkms status
tp_smapi-dkms/0.45, 7.2.9-arch1-1, x86_64: installed (Original modules exist)

and

$ lsmod | grep -i smapi

Nothing is printed so the module is not loaded.

Last edited by boarim (Today 13:15:01)

seth · Today 13:28:32

Did you read https://github.com/linux-thinkpad/tp_smapi ?
There's apparently a conflict w/ hdaps - make sure the latter isn't loaded or is loaded in its patched form.
It could exist in the initramfs (did you regenerate that after installing the module)?

Then try to

modprobe -v tp_smapi

Arch Linux

#1 Yesterday 18:46:04

Cannot recalibrate new battery with tp_smapi and tlp

#2 Yesterday 19:56:06

Re: Cannot recalibrate new battery with tp_smapi and tlp

#3 Today 05:55:31

Re: Cannot recalibrate new battery with tp_smapi and tlp

#4 Today 06:42:49

Re: Cannot recalibrate new battery with tp_smapi and tlp

#5 Today 13:14:42

Re: Cannot recalibrate new battery with tp_smapi and tlp

#6 Today 13:28:32

Re: Cannot recalibrate new battery with tp_smapi and tlp

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