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Direct Rendering Manager
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<p>The Direct Rendering Manager (DRM) is a subsystem of the <a href="/facts/Linux_kernel/dlkduHuA">Linux kernel</a> responsible for interfacing with <a href="/facts/Graphics_processing_unit/PTK1RQVp">GPUs</a> of modern <a href="/facts/Video_cards/bcKfPyFt">video cards</a>. DRM exposes an <a href="/facts/Application_programming_interface/GMlN4vUr">API</a> that <a href="/facts/User-space/0yIzMY8t">user-space</a> programs can use to send commands and data to the GPU and perform operations such as configuring the <a href="/facts/Mode_setting/v6nFpTsF">mode setting</a> of the display. DRM was first developed as the <a href="/facts/Kernel-space/0yIzMY8t">kernel-space</a> component of the <a href="/facts/X.Org_Server/7AaPmYtV">X Server</a> <a href="/facts/Direct_Rendering_Infrastructure/gY65go57">Direct Rendering Infrastructure</a>, but since then it has been used by other graphic stack alternatives such as <a href="/facts/Wayland_(display_server_protocol)/I9I1TbEG">Wayland</a> and standalone applications and libraries such as <a href="/facts/Simple_DirectMedia_Layer/9tSff0Lg"> SDL2</a> and <a href="/facts/Kodi_(software)/tzwEQ9oh"> Kodi</a>. </p><p>User-space programs can use the DRM API to command the GPU to do <a href="/facts/Hardware_acceleration/ej5sM7hB">hardware-accelerated</a> <a href="/facts/3D_rendering/6SqukntK">3D rendering</a> and <a href="/facts/Video_decoding/4xyFGyNo">video decoding</a>, as well as <a href="/facts/General-purpose_computing_on_graphics_processing_units/roBwsPY2">GPGPU computing</a>. </p>