Problem with squares on the screen (linux fedora kde)

[wild narwhal]

For some reason my screen is divided into light and dark squares

[median oar]

this is a known bug in the mesa drivers that happens on integrated intel gpus

do you have a dedicated gpu

[wild narwhal]

no

[median oar]

do you have everest installed

[wild narwhal]

yes

[median oar]

edit everest-launch.txt, remove the # before --graphics and replace OpenGL with Vulkan

save and launch everest

[wild narwhal]

Thank you!

[median oar]

i assume this is fixed?

[wild narwhal]

Yes, problem solved

[median silo]

is there a fix without using everest?

[radiant dune]

Probably

[wanton thistle]

Yes
The FNA3D_FORCE_DRIVER environment variable

I believe for Vulkan you should set it to SDL_GPU (case-sensitive)

You probably need the FNA version of the game for this though
It can be downloaded by choosing the opengl beta on steam iirc

[radiant dune]

xna is unavailable on linux

[wanton thistle]

Ah alright

Then just the variable

[median oar]

the opengl beta is only meaningful on windows

--graphics Vulkan when passed as a commandline argument will also work

i thought this was everest-only but i was recently made aware it isn't

--graphics Vulkan is equivalent to the FNA3D_FORCE_DRIVER=Vulkan envvar

[wanton thistle]

It doesn't have a Vulkan option though

FNA3D_FORCE_DRIVER takes the values:
OpenGL for GL
SDL_GPU for D3D12, Vulkan or Metal
D3D11 for DirectX 11

[median oar]

it works though

every single time i or @placid mauve suggested to use Vulkan it worked

are you looking at the sdl3 documentation or sdl2

[wanton thistle]

I guess that means the options in the brackets are also valid values for the variable

[wanton thistle]

https://fna-xna.github.io/docs/7%3A-FNA-Environment-Variables/#fna3d_force_driver

[median oar]

huh so that's where /gldevice came from

interesting

[wanton thistle]

if not for fna3d_force_driver i wouldn't've been able to run celeste on my phone

good thing it exists

[median oar]

now im wondering if those options in brackets are synonymous

[wanton thistle]

as in?

[median oar]

SDL_GPU = Vulkan = Metal = D3D12

[wanton thistle]

I guess

On a device that supports more than one there's probably not that much of a difference

[median oar]

nvm i was right in thinking this is sdl3 https://github.com/FNA-XNA/FNA3D/blob/master/src/FNA3D.c#L156-L188

sdl2 version of fna3d iterates over the drivers array which only has the d3d11, opengl, vulkan or gmnx drivers

FNA3D_PrepareWindowAttributes + drivers array

so yeah we don't have sdl_gpu on sdl2 and we only have d3d11, opengl, vulkan and gnmx

[placid mauve]

our fna version is old, the actual options you will be able to use are here https://github.com/EverestAPI/Resources/wiki/Command-Line-Arguments#celeste-vanilla

[placid mauve]

also gnmx is a ps4 driver lol lmao

[median oar]

no wonder i didnt hear of it

[median silo]

so can I do it on a regular installation of Celeste?
Or do I need FNA

[median oar]

i would do this on fna

but if you're on linux you already have fna

so just pass --graphics Vulkan to your launch args

[wanton thistle]

I guess that's why SDL_GPU didn't work
Either that or my phone's garbage GPU

[median oar]

we don't use sdl3 so this is why it didn't work

sdl_gpu doesn't exist in sdl2