I want to buy used laptop with rx6600m and r7 5800h
Does switch between discrete gpu and apu work on linux for amd gpus?
Maybe there are some pitfalls?
I want to buy used laptop with rx6600m and r7 5800h
Does switch between discrete gpu and apu work on linux for amd gpus?
Maybe there are some pitfalls?
Hmm… are you sure about that?
$ DRI_PRIME=1 glxinfo | grep "OpenGL renderer" OpenGL renderer string: Gallium 0.4 on AMD TURKSDRI_PRIME=1switches to the discrete GPU (or used to at least - I don’t have hybrid graphics anymore). I’d be surprised if that feature were removed…CC BY-NC-SA 4.0
This is render offloading, not GPU switching. GPU switching implies switching the primary rendering device (the one power the displays) entirely rather than rendering on a separate GPU and copying the output to the primary.
Most gaming laptops these days don’t support true GPU switching as it requires a hardware mux to switch the display between the GPUs. Every gaming laptop I’ve used from the past decade has been muxless and only used render offloading.
I see! Thanks for clearing that up.