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Dual GPU

Using laptops with both integrated and discrete GPUs.

Many laptops ship with an integrated GPU plus a discrete one (commonly Intel/AMD

  • NVIDIA). Genesi handles driver installation via CachyOS's hardware detection — see GPU Drivers first.

Running a program on the discrete GPU

With PRIME render offload you keep the iGPU for the desktop (better battery) and send specific apps to the dGPU:

# NVIDIA PRIME offload
prime-run <application>
# or, generically
DRI_PRIME=1 <application>

In Steam, set a game's launch options to prime-run %command% to run it on the discrete GPU.

Going deeper

Dual-GPU behaviour (offloading, power management, fully disabling one GPU) is shared with CachyOS/Arch. The CachyOS Dual GPU guide and the Arch Wiki: PRIME cover the full range of setups.