[Discuss] GPU detection/ordering

[richard.pieri at gmail.com (Rich Pieri)]

On Sun, 9 Nov 2025 19:40:10 -0500
Rich Pieri <richard.pieri at gmail.com> wrote:

> I installed CachyOS (an Arch derivative) this evening to see what if
> anything is different. "Everything". GPU switching just works. So it
> seems the problems I'm having are due to Tumbleweed kernels or
> libraries not fully supporting the hardware. There is a collection of
> ASUS-specific patches which I guess aren't in the Tumbleweed kernels
> yet.

CachyOS didn't work so well for me. But then, I'm not an Arch fan,
Steam Deck aside (SteamOS v3 is built on Arch but it's heavily curated
and it runs on a read-only OS). Back to Tumbleweed and more fiddling
and I just can't get PRIME offload working correctly. Everything runs
on the nVidia GPU when in Hybrid mode. But! I can force Integrated mode
with supergfxctl. Switching modes requires a logout/login but that's a
mild inconvenience until the kernel and/or Mesa catch up with the
hardware.

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