diff --git a/doc/changelog.dox b/doc/changelog.dox
index e084963af..8bd118a3a 100644
--- a/doc/changelog.dox
+++ b/doc/changelog.dox
@@ -505,6 +505,10 @@ See also:
     @relativeref{Platform::Sdl2Application::KeyEvent::Key,Menu} for consistency
     with @ref Platform::EmscriptenApplication and
     @ref Platform::GlfwApplication (see [mosra/magnum#547](https://github.com/mosra/magnum/pull/547))
+-   @ref Platform::Sdl2Application now overrides SDL's default behavior that
+    prevents computer from entering a power-saving mode while the application
+    is running, as that's generally undesirable for regular GUI applications.
+    See @ref Platform-Sdl2Application-usage-power for more information.
 
 @subsubsection changelog-latest-changes-scenegraph SceneGraph library
 
diff --git a/src/Magnum/Platform/Sdl2Application.cpp b/src/Magnum/Platform/Sdl2Application.cpp
index ec2fc49c9..57b0d8b7f 100644
--- a/src/Magnum/Platform/Sdl2Application.cpp
+++ b/src/Magnum/Platform/Sdl2Application.cpp
@@ -149,6 +149,14 @@ Sdl2Application::Sdl2Application(const Arguments& arguments, NoCreateT):
     #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
     SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0");
     #endif
+    /* By default, SDL behaves like if it was playing a video or whatever,
+       preventing the computer from turning off the screen or going to sleep.
+       While it sorta makes sense for games, it's useless and annoying for
+       regular apps. Together with the compositor disabling those two are the
+       most stupid defaults. */
+    #ifdef SDL_HINT_VIDEO_ALLOW_SCREENSAVER
+    SDL_SetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
+    #endif
     /* Available since 2.0.12, use EGL if desired */
     #if defined(MAGNUM_TARGET_EGL) && defined(SDL_HINT_VIDEO_X11_FORCE_EGL)
     SDL_SetHint(SDL_HINT_VIDEO_X11_FORCE_EGL, "1");
diff --git a/src/Magnum/Platform/Sdl2Application.h b/src/Magnum/Platform/Sdl2Application.h
index aface1bb5..aac12d8af 100644
--- a/src/Magnum/Platform/Sdl2Application.h
+++ b/src/Magnum/Platform/Sdl2Application.h
@@ -286,6 +286,19 @@ If no other application header is included, this class is also aliased to
 @cpp Platform::Application @ce and the macro is aliased to @cpp MAGNUM_APPLICATION_MAIN() @ce
 to simplify porting.
 
+@subsection Platform-Sdl2Application-usage-power Power management
+
+SDL by default prevents the computer from powering off the or screen going to
+sleep. While possibly useful for game-like use cases, it's generally
+undesirable for regular applications. @ref Sdl2Application turns this behavior
+off. You can restore SDL's default behavior by disabling the
+[corresponding SDL hint](https://wiki.libsdl.org/CategoryHints) through an
+environment variable or through @cpp SDL_SetHint() @ce from your application.
+
+@code{.sh}
+SDL_VIDEO_ALLOW_SCREENSAVER=0 ./your-app
+@endcode
+
 @subsection Platform-Sdl2Application-usage-posix POSIX specifics
 
 On POSIX systems, SDL by default intercepts the `SIGTERM` signal and generates
@@ -314,7 +327,8 @@ for non-fullscreen apps (KWin, among others, is known to respect this setting).
 When using SDL >= 2.0.8, @ref Sdl2Application turns this behavior off, keeping
 the compositor running to avoid the flicker. You can turn this behavior back on
 by enabling the [corresponding SDL hint](https://wiki.libsdl.org/CategoryHints)
-through an environment variable:
+through an environment variable or through @cpp SDL_SetHint() @ce from your
+application.
 
 @code{.sh}
 SDL_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR=1 ./your-app