On: Project Wayfield – The JDK Wayland Desktop on Linux [video]

[gertop]

X11 and Wayland aren't involved with text mode. The kernel implements its own framebuffer: https://www.kernel.org/doc/html/latest/fb/fbcon.html

[iamcreasy → gertop]

Thanks, but how does Linux kernel ensures that it can talk to all framebuffer devices out there? Does it come with a generic implementation that all GPU vendors support?

[sannee → iamcreasy]

There indeed is a standardized interface provided via EFI: https://docs.kernel.org/fb/efifb.html

[pjmlp → sannee]

Generic as in, as long as there is UEFI to talk to, good luck outside x86 ecosystem.

[pjmlp → iamcreasy]

Outside the old PC BIOS modes up to VESA, there isn't such thing as a generic implementation for all GPU vendors.