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monolalia@lemmy.world

Power off discrete GPU while not in use? (lemm.ee)

submitted 1 week ago by iturnedintoanewt@lemm.ee to c/linux_gaming@lemmy.world

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Hi guys!

I purchased a few months ago a new AMD PC, with a 7700 CPU, 32GB of RAM and a 7800XT GPU. I've noticed since, that my electric bill has been increased (compared to when I used an Intel i7 6700 with a 1070 GPU), I was wondering, is it possible to use a hybrid GPU setup kinda like laptops, where the iGPU from the CPU is activated for normal tasks, and the discrete GPU is only activated on demand? Would the GPU be unpowered/sleeping in the meantime?

....all this from a Linux perspective, I'm running Nobara 40.

Thanks!

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[–] Atemu@lemmy.ml 1 points 3 days ago

It's nice that it's well integrated but that doesn't mean it works well.

Power management of AMDGPUs has always been an absolute shitshow from my perspective.

With dGPUs they've now resorted to always running them in the highest power mode because they couldn't get power management to properly function.

I can't speak for modern intel GPUs but my old ones were fine.