TLP on HP Laptop ProBook

[dwarning]

[x] I've read and accepted the Bug Reporting Howto [x] I've provided all required tlp-stat outputs via Gist (see below)

Using the HP ProBook 6440b I activated in /etc/tpl.conf

START_CHARGE_THRESH_BAT0=75 STOP_CHARGE_THRESH_BAT0=80

But for tlp-stat -b I got: sudo tlp-stat -b --- TLP 1.5.0 --------------------------------------------

+++ Battery Care Plugin: generic Supported features: none available

+++ Battery Status: BAT0 /sys/class/power_supply/BAT0/manufacturer = Hewlett-Packard /sys/class/power_supply/BAT0/model_name = Primary /sys/class/power_supply/BAT0/cycle_count = 0 (or not supported) /sys/class/power_supply/BAT0/charge_full_design = 6361 [mAh] /sys/class/power_supply/BAT0/charge_full = 6361 [mAh] /sys/class/power_supply/BAT0/charge_now = 6361 [mAh] /sys/class/power_supply/BAT0/current_now = 0 [mA] /sys/class/power_supply/BAT0/status = Full

/sys/class/power_supply/BAT0/charge_control_start_threshold = (not available) /sys/class/power_supply/BAT0/charge_control_end_threshold = (not available)

Charge = 100.0 [%] Capacity = 100.0 [%]

Did that mean that HP Probook is not supported for for battery care? What are the requirements to support this? Special driver or kernel features?

[linrunner]

Hi. The documentation already addresses your question:

Prerequisites In order to use charge thresholds or recalibration with TLP:

• The hardware must have the appropriate capability
• A suitable kernel driver must make these capabilities usable under Linux

As for obtaining kernel drivers, there are two options:

• Drivers that are maintained in the Linux kernel and shipped with each distribution. They are loaded automatically on supported laptops and do not require any user action.
• So-called “external kernel drivers”, which are not part of the Linux kernel and require the user to install additional, distribution specific packages. This case applies to ThinkPads only and is described in Installation.

Note If the hardware does not have the capability or no suitable driver exists, then TLP battery care cannot control it. Please do not submit issues for hardware lacking kernel driver support for charge control options. Providing kernel drivers is not part of the TLP project.

[...]

Unsupported Hardware For all laptop vendors/brands without charge control options the output of tlp-stat -b looks like this: +++ Battery Care Plugin: generic Supported features: none available

Battery Care Vendor Specifics