High Battery Drain on ASUS ROG Zephyrus G16 with asusctl on Arch Linux

[TacoronteRiveroCristian]

Issue Description:

Hello, I am experiencing rapid battery drain on my ASUS ROG Zephyrus G16 OLED (model GU605MV-QR047 with Intel Core Ultra 9 185H) running Arch Linux. I followed the ASUS Linux guide, added the g14 repository, and installed tools like asusctl and supergfxctl. My GPU is set to hybrid mode, and the battery life on Arch Linux is significantly lower compared to Ubuntu or Windows.

System Details:

Distribution: Arch Linux (rolling release)
Kernel Version: 6.11.5-arch1-1
ASUS Tools Installed: asusctl, supergfxctl, power-profiles-daemon
GPU Configuration: hybrid mode, should only activate when necessary
Fan RPM: between 700 and 1500 RPM
Battery Performance: In Arch Linux, the battery drains approximately 3% every 5 minutes, giving a total battery life of around 2 hours with light tasks (e.g., browsing). On Ubuntu and Windows, battery life is typically around 5 hours.

Steps Taken:

Tried powertop to identify power consumption sources.
Disabled Windows “Fast-Start” as recommended by the community, but the issue persists.
Question: Are there specific settings or configurations within asusctl that could optimize battery life on Arch Linux while retaining essential ASUS-specific functionalities? Any guidance or potential solutions would be greatly appreciated.

[flukejones]

Please use a system monitor of some sort to identify tasks that are using CPU at a high percentage