Installing Arch requires disabling #Secure Boot.

The BIOS is GUI-based and can be colorful in certain areas. Both keyboard and mouse navigation are supported.

When booting into BIOS via F2 key on startup, an intermediate "splash screen" is shown with the current #Performance Mode and a short list of available boot targets shown. To move into the actual configurable BIOS, the user needs to press the "More Settings" button.

While the splash screen is colorful, the BIOS itself has a white background with dark text, the currently selected option has a faint highlight and its current value is contrasted with a blue background.

This device is not supported by fwupd.

Secure Boot management can be done from the BIOS's "Security Tab".

No known keyboard combinations work. An external tool such as https://github.com/Thomashighbaugh/Lenovo-Legion-Advanced-Bios/ is needed to access the "Advanced" tab of the bios.

On models with an HX cpu, undervolting can be unlocked in the Advanced BIOS, where each of the following needs to be disabled:

1. CPU Lock Configuration
2. Overclocking Lock
3. Undervolt Protection

After which a tool like throttled (recommended) or intel-undervolt can be used to undervolt the CPU.

Cannot be controlled through software. The keyboard shortcut of Fn+Space works to switch between Off, Dim and Bright backlight modes.

The keyboard shortcut Fn+Q works as intended.

An alternative method is querying and writing to /sys/firmware/acpi/platform_profile with /sys/firmware/acpi/platform_profile_choices showing the available choices.

Toggled by writing a 1 for enabled and a 0 for disabled into /sys/bus/platform/devices/VPC2004\:00/conservation_mode

Write one of Fast, Standard, or Long_Life into /sys/class/power_supply/BAT0/charge_types

ASPM can be force enabled which may provide extra power saving when using the #Helper Script. To do this, add pcie_aspm=force to your kernel parameters

A helper script exists at minivantage.sh that allows easy switching between all power/charging/conservation modes for this device.

To switch without needing to enter a password multiple times, a polkit rule may be created as such:

/etc/polkit-1/rules.d/10-power-management.rules

polkit.addRule(function(action, subject) {
 if (action.id == "org.freedesktop.policykit.exec" &&
 (action.lookup("program") == "/usr/bin/bash" || action.lookup("program") == "/usr/bin/sh") &&
 (
 	action.lookup("command_line").indexOf("/sys/firmware/acpi/platform_profile") !== -1
 	|| action.lookup("command_line").indexOf("/sys/bus/platform/devices/VPC2004\\:00/conservation_mode") !== -1
 	|| action.lookup("command_line").indexOf("/sys/class/power_supply/BAT0/charge_types") !== -1
 	|| action.lookup("command_line").indexOf("/sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/camera_power") !== -1
 	|| action.lookup("command_line").indexOf("/sys/module/pcie_aspm/parameters/policy") !== -1
 ) &&
 subject.user == "USERNAME"
 ) {
 return polkit.Result.YES;
 }
});

Replace USERNAME with your username.

Hibernation does not work. Both s2idle and deep sleep suspend modes work flawlessly.

There is no need to disable ASPM, and its recommended to be left on for extended battery life. NVIDIA's sleep services (nvidia-suspend.service, nvidia-hibernate.service, ...) are not required either.

• CPU frequency scaling#power-profiles-daemon integrates well with the device's keyboard shortcuts for performance mode switching (Fn+Q) and seems to provide the best power savings for this device.
• Lowering the refresh rate to 60hz results in a significant increase in battery life
• Quiet mode also affects battery life positively

Throttled is required for the CPU to properly boost. No other software, including thermald, has properly allowed the CPU to turbo.

A basic config should look like the following, with a complete config here.

/etc/throttled.conf

...
Sysfs_Power_Path: /sys/class/power_supply/ADP0/online
...
PL1_Tdp_W: 80
...
PL2_Tdp_W: 140
...

This device is supported by the nvidia-open drivers, which should be used per NVIDIA#Installation.

Follow CPU frequency scaling#nvidia-powerd.

Automatic shutdown of the card when not in use is possible. To check the current GPU power state, use cat /sys/bus/pci/devices/0000:01:00.0/power_state. A reported state of "D3Cold" means the GPU is fully powered off and not drawing any power.

This module configuration may be needed as well:

/etc/modprobe.d/nvidia-pm.conf

options nvidia NVreg_DynamicPowerManagement=0x02

• The BIOS guide