# DeviceSpec: API `drm()` from server `linux()`: The API is Linux DRM/KMS. The server is Linux itself. This server provides direct capture of frames at the kernel so it works for both Linux and Wayland. There's a program known as GPU Screen Recorder that is able to use this to capture specific windows on X11, but the window-specific capture doesn't work with Wayland. Irrespective, whole-screen capture works on both GFX servers. Notes: * `modetest` utility in ubuntu package `libdrm-tests` is relevant. * `kmscube` is apparently relevant. * `drm_info` from ubuntu pkg `drm-info`is relevant.