diff --git a/src/posix/cocoa/i_video.mm b/src/posix/cocoa/i_video.mm
index 1b6b5815f4..b1334778f6 100644
--- a/src/posix/cocoa/i_video.mm
+++ b/src/posix/cocoa/i_video.mm
@@ -52,10 +52,7 @@
 #include "version.h"
 #include "doomerrors.h"
 
-#include "gl/renderer/gl_renderer.h"
 #include "gl/system/gl_framebuffer.h"
-#include "gl/textures/gl_samplers.h"
-
 #include "vulkan/system/vk_framebuffer.h"
 
 
@@ -182,6 +179,12 @@ namespace
 
 @implementation OpenGLCocoaView
 
+- (void)drawRect:(NSRect)dirtyRect
+{
+	[NSColor.blackColor setFill];
+	NSRectFill(dirtyRect);
+}
+
 - (void)resetCursorRects
 {
 	[super resetCursorRects];
@@ -327,9 +330,6 @@ void SetupOpenGLView(CocoaWindow* window)
 	[[glView openGLContext] makeCurrentContext];
 
 	[window setContentView:glView];
-
-	// To be able to use OpenGL functions in SetMode()
-	ogl_LoadFunctions();
 }
 
 } // unnamed namespace
@@ -658,14 +658,6 @@ void SystemGLFrameBuffer::SetMode(const bool fullscreen, const bool hiDPI)
 		SetWindowedMode();
 	}
 
-	const NSSize viewSize = I_GetContentViewSize(m_window);
-
-	glViewport(0, 0, static_cast<GLsizei>(viewSize.width), static_cast<GLsizei>(viewSize.height));
-	glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
-	glClear(GL_COLOR_BUFFER_BIT);
-
-	[[NSOpenGLContext currentContext] flushBuffer];
-
 	[m_window updateTitle];
 
 	if (![m_window isKeyWindow])