salmanoff/docs/api-drm-server-linux.md

DeviceSpec: stim-buff-api drm() from provider linux():

The stim-buff-api is Linux DRM/KMS. The provider is Linux itself. This provider enables direct capture of frames at the kernel level, so it works for both X11 and Wayland. There is a program called GPU Screen Recorder that can use this API to capture specific windows on X11, but window-specific capture does not work with Wayland. However, whole-screen capture works on both graphics servers.

Notes:

• modetest utility in ubuntu package libdrm-tests is relevant.
• kmscube is apparently relevant.
• drm_info from ubuntu pkg drm-infois relevant.