Gaming mode not starting with igpu and dgpu
So, I wanted to install bazzite on my laptop, but the dgpu gets in the way. I have an AMD cpu with radeon gfx, but also a discrete gtx 1650. I tried to install bbswitch to disable it but surprise, bazzite has read only which I cannot bypass. So could I disable my dgpu by any way? If not, can I run gaming mode with just my igpu? Because it just freezes on a black screen because of the dgpu (igpu is set to default)
9 Replies
iirc there is an upstream issue with gamescope (in session mode which is called gamemode) where it will not work on a laptop system with 2 amd gpus (igpu+dgpu)
you would just have to use the desktop version
its possible its just a massive pain in the ass and will run rather poorly. you have to run it off the igpu with
--prefer-vk-device pointed towards your iGPU's vulkan address. you can find that with lspci -nn | grep -E "VGA|3D|Display", it should look something like 1002:744c. then you use --prefer-vk-device 1002:744c as a part of your gamescope launch command which you can set according to https://github.com/ChimeraOS/gamescope-session?tab=readme-ov-file#user-configurationGitHub
GitHub - ChimeraOS/gamescope-session: A gamescope based user session
A gamescope based user session. Contribute to ChimeraOS/gamescope-session development by creating an account on GitHub.
honestly i wouldnt bother
if your laptop has a mux switch in the bios just use that to disable the igpu
then game mode should just work ™️
export-gpu should set the vk-device for gamescope-sessionDamn that’s a lot
Lemme try that rq
Also I have a weird bug
In the grub there’s 4 bazzites
ostree 0 and 1
and dupes that don’t work
Ostree 0 gets me into bazzite with my router’s host name
And the ostree 1 gets me into bazzite hostname
Also, mux switch is not a thing here sadly
Even tho bios is 2021
So, I tried both methods above, but nothing works
It either freezes at the steam logo, or on a not blinking “_” (means it’s frozen)
i tried running gamescope via terminal but it freezes on the resolution change
it does detect my igpu and indeed tries to do something with it
but it just doesn't
i did notice that it launches headless
i tried —backend wayland but it still launches with the headless one