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bayasdev / envycontrol

Easy GPU switching for Nvidia Optimus laptops under Linux
MIT License
1.26k stars 61 forks source link

How can I tell if Hybrid mode is actually working #136

Open Zerogaku opened 1 year ago

Zerogaku commented 1 year ago

What is your question? From what I understand, hybrid mode uses the integrated graphics first, then when an application becomes too resource intensive it switches to using the discrete graphics, but when running nvidia-smi I can't tell if it's working or not, is there a better way of telling?

bayasdev commented 1 year ago

Hybrid mode is the default behavior for drivers on Linux, Envycontrol only does a few tweaks for UX and RTD3 ;)

Zerogaku commented 1 year ago

Ah i see, so with or without envycontrol, if i have nvidia installed, a resource intensive application like for example blender would automatically use nvidia drivers right?

murkl commented 12 months ago

No, you have to run the app with prefix: https://github.com/bayasdev/envycontrol/wiki/Frequently-Asked-Questions#hybrid

Zerogaku commented 11 months ago

Ok i'm beginning to understand now, so in theory all i need nvidia and the prime-run package, but if i wanted more convenience like auto turning off the nvidia gpu when not in use without having to manually edit udev rules and nvidia module parameters to do so i would use envycontrol.

Henry78 commented 11 months ago

Or just run nvtop and see if both GPUs are shown.

murkl commented 11 months ago

I use nvidia-smi to check if process is runinng with nvidia

klmcwhirter commented 7 months ago

For future readers ... I found this video that explains Optimus mode ...

DenishiVideo - NVIDIA Optimus: A ℂ𝕠𝕞𝕗𝕪 Guide