this post was submitted on 01 Sep 2025
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Linux Gaming

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New PC, use both GPUs? (programming.dev)
submitted 2 weeks ago by Matty_r@programming.dev to c/linux_gaming@lemmy.world
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Hey all, I know that switchable graphics is a thing in laptops where there is usually a single port. But how would you go about it on desktop? Do you put your monitor in the onboard HDMI or on the dGPU port? There are other issues associated with doing it of course, but I thought it might save on power and noise if I used the iGPU as much as possible.

Only have a nvidia GPU at the moment, but hoping to get an AMD 9070 at some point

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[–] windowsphoneguy@feddit.org 3 points 2 weeks ago (1 children)

With your desktop

[–] Matty_r@programming.dev 1 points 2 weeks ago (1 children)

I'm pretty confused what you're getting at to be honest.

[–] kkj@lemmy.dbzer0.com 11 points 2 weeks ago (1 children)

If the monitor is plugged into the motherboard, it will exclusively use the integrated GPU. If it is plugged into the video card, it will exclusively use the discrete GPU. A standard desktop motherboard lacks the extra wiring to allow routing discrete graphics through the onboard video output or vice versa.

[–] Matty_r@programming.dev 2 points 2 weeks ago

OK, got it. Thanks