diff --git a/SConstruct b/SConstruct
index 653279f17..b8a2a709e 100644
--- a/SConstruct
+++ b/SConstruct
@@ -3534,7 +3534,11 @@ class DXXCommon(LazyObjectConstructor):
 			return self.debug
 		# automatic setup for raspberrypi
 		def default_opengles(self):
-			if self.raspberrypi in ('yes', 'mesa'):
+			if self.raspberrypi in ('yes'):
+				return True
+			return False
+		def default_sdl2(self):
+			if self.raspberrypi in ('mesa'):
 				return True
 			return False
 		@classmethod
@@ -3698,7 +3702,7 @@ class DXXCommon(LazyObjectConstructor):
 					('opengl', True, 'build with OpenGL support'),
 					('opengles', self.default_opengles, 'build with OpenGL ES support'),
 					('editor', False, 'include editor into build (!EXPERIMENTAL!)'),
-					('sdl2', False, 'use libSDL2+SDL2_mixer (!EXPERIMENTAL!)'),
+					('sdl2', self.default_sdl2, 'use libSDL2+SDL2_mixer (!EXPERIMENTAL!)'),
 					('sdlmixer', True, 'build with SDL_Mixer support for sound and music (includes external music support)'),
 					('ipv6', False, 'enable UDP/IPv6 for multiplayer'),
 					('use_udp', True, 'enable UDP support'),
diff --git a/d1x-rebirth/README.RPi b/d1x-rebirth/README.RPi
index fd1649c55..717a8c467 100644
--- a/d1x-rebirth/README.RPi
+++ b/d1x-rebirth/README.RPi
@@ -25,12 +25,17 @@ scons raspberrypi=1 egl_lib=EGL opengles_lib=GLESv2
 This assumes that the development files (libs/headers) for the VideoCore APIs 
 are located in /opt/vc. You can use rpi_vc_path to specify another location.
 
-If you wish to build against the experimental Mesa VC4 driver, use:
+If you wish to build for Raspberry Pi 4B or the experimental Mesa VC4 driver:
 
 scons raspberrypi=mesa
 
-This will select the GLES interface by default, but you can select OpenGL by
-adding opengles=0. For all other options, check "scons -h".
+This will select the GL interface with SDL2 by default, but you can select
+GLES & SDL1 by adding "opengles=1 sdl2=0". Keep in mind that as of Raspbian buster,
+the Mesa packages no longer ship with GLESv1 headers, making GLES builds impossible.
+Additionally, SDL2 is highly recommended, as its KMSDRM video driver is the only
+way to run DXX-Rebirth on a Raspberry Pi 4B outside of an Xorg session.
+
+For all other options, check "scons -h".
 
 Currently, there is no direct support for crosscompiling.
 
diff --git a/d2x-rebirth/README.RPi b/d2x-rebirth/README.RPi
index fd1649c55..717a8c467 100644
--- a/d2x-rebirth/README.RPi
+++ b/d2x-rebirth/README.RPi
@@ -25,12 +25,17 @@ scons raspberrypi=1 egl_lib=EGL opengles_lib=GLESv2
 This assumes that the development files (libs/headers) for the VideoCore APIs 
 are located in /opt/vc. You can use rpi_vc_path to specify another location.
 
-If you wish to build against the experimental Mesa VC4 driver, use:
+If you wish to build for Raspberry Pi 4B or the experimental Mesa VC4 driver:
 
 scons raspberrypi=mesa
 
-This will select the GLES interface by default, but you can select OpenGL by
-adding opengles=0. For all other options, check "scons -h".
+This will select the GL interface with SDL2 by default, but you can select
+GLES & SDL1 by adding "opengles=1 sdl2=0". Keep in mind that as of Raspbian buster,
+the Mesa packages no longer ship with GLESv1 headers, making GLES builds impossible.
+Additionally, SDL2 is highly recommended, as its KMSDRM video driver is the only
+way to run DXX-Rebirth on a Raspberry Pi 4B outside of an Xorg session.
+
+For all other options, check "scons -h".
 
 Currently, there is no direct support for crosscompiling.