This are just some simple scripts to control some BIOS settings of the Lenovo Ideapad 5 Pro 14ACN6 (It also works for other models like the ideapad 5 14ARE05).

The settings are changed using the acpi_call kernel module and the calls specified in the archwiki page.

• Power mode (controls the system fan):
  • Intelligent cooling
  • Battery saving
  • Extreme performance
• Rapid charge
• Conserve battery (stops charging when connected to power at 60%)

I also include a script conserve_battery to turn on the battery conservation mode at 80% battery instead of 60% so when I unplug the laptop from power it has more charge. The script was made to be run in a cron job every X minutes.

If you have the acpi_call kernel module installed you can just clone the repository and run the scripts.

git clone <url>

To install the acpi_call kernel module clone its repository and run:

# Compile Module
make
sudo make install
# Load the kernel module
sudo modprobe acpi_call

Note: you have to run these commands for every new kernel you install.

sudo ./bios_power_mode <mode>

The mode value can be either:

• INTELLIGENT_COOLING
• POWER_SAVING
• EXTREME_PERFORMANCE
• RAPID_CHARGE

When setting rapid charge mode, specify on or off:

sudo ./bios_power_mode RAPID_CHARGE <on/off>

Get active mode:

sudo ./bios_power_mode active

You can include udev rules in /etc/udev/rules.d/10-power.rules to change the BIOS power mode when the laptop is plugged/unplugged from power.

SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_STATUS}=="Discharging", RUN+="/usr/local/bin/bios_power_mode BATTERY_SAVING"
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_STATUS}=="Charging", RUN+="/usr/local/bin/bios_power_mode INTELLIGENT_COOLING"

• Toggle rapid charge