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cszach / linux-on-lenovo-legion

:computer: Notes for using Linux on Lenovo Legion.
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Request for inclusion of battery optimization tips #14

Open akza07 opened 1 week ago

akza07 commented 1 week ago

Device: LENOVO Legion Slim 5 16AHP9 83DH ( Ryzen 8845HS / 4060 ) Idle Drain of 23 Watt

I installed Fedora 40. Noticing battery drain. On a standard Nvidia driver installation and configuration with envycontrol, both iGPU and Hybrid mode has same 2hr 15min battery backup on idle. The same configuration on Windows gives me about 6hr. So something is off here. So if you or anyone have any tips for it, Please update it in the document.

kasra3422 commented 1 week ago

Do you have an external monitor connected? The HDMI and USB-C display ports are linked exclusively to the discrete GPU, which means the dGPU cannot be turned off when an external display is attached. Additionally, using the wrong driver may prevent the dGPU from entering low-power mode, even without an external monitor connected. Try using a tool like 'Mission Center' to check if the dGPU is active.

akza07 commented 1 week ago

In integrated mode, the hardware is basically removed as far as linux knows so nvidia-smi doesn't work either. Thinking of installing the drivers directly. It could be rpm fusion drivers have some modifications I guess.