Always could not load rendering backend linuxkms-*

[Quackdoc]

Bug Description

When trying to run any of the linuxkms backends I get the following issue Could not load rendering backend linuxkms-skia, fallback to default

This issue occurs with the slint-rust-template as well as slint-viewer

Reproducible Code (if applicable)

Environment Details

• Slint Version: #504474f90b39bdbf43043a6e31859f24572c59a0
• Platform/OS: Arch Linux
• Programming Language: Rust
• Backend/Renderer: all linuxkms

Product Impact

No response

[tronical]

The linuxkms backed is not enabled by default. Try adding "backend-linuxkms" into your features:

https://docs.slint.dev/latest/docs/rust/slint/docs/cargo_features/#backends

slint = { version = "1.12", features = ["backend-linuxkms", "renderer-skia"] }

[Quackdoc]

I thought slint-viewer did have it enabled? Would it be viable to enable it there by default? I would like to ship slint-viewer as a package.

[ogoffart]

How are you building or getting the slint-viewer?
The one we build in out CI and is in our binary package should have the feature enabled.
Otherwise you can pass --features=backend-linuxkms when building

(Our binary are using the -noseat variant. Maybe that is a problem)