diff --git a/src/engine/renderer/tr_init.cpp b/src/engine/renderer/tr_init.cpp
index 984e2961e1..0b1c41615e 100644
--- a/src/engine/renderer/tr_init.cpp
+++ b/src/engine/renderer/tr_init.cpp
@@ -30,8 +30,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 	glstate_t   glState;
 
-	float       displayAspect = 0.0f;
-
 	static void GfxInfo_f();
 
 	cvar_t      *r_glMajorVersion;
@@ -922,24 +920,10 @@ ScreenshotCmd screenshotPNGRegistration("screenshotPNG", ssFormat_t::SSF_PNG, "p
 
 		Log::Notice("PIXELFORMAT: color(%d-bits)", glConfig.colorBits );
 
-		{
-			std::string out;
-			if ( glConfig.displayFrequency )
-			{
-				out = Str::Format("%d", glConfig.displayFrequency );
-			}
-			else
-			{
-				out = "N/A";
-			}
-
-			Log::Notice("MODE: %d, %d x %d %s hz: %s",
-				r_mode->integer,
-				glConfig.vidWidth, glConfig.vidHeight,
-				fsstrings[ +r_fullscreen.Get() ],
-				out
-				);
-		}
+		Log::Notice("MODE: %d, %d x %d %s",
+			r_mode->integer,
+			glConfig.vidWidth, glConfig.vidHeight,
+			fsstrings[ +r_fullscreen.Get() ] );
 
 		if ( !!r_glExtendedValidation->integer )
 		{
diff --git a/src/engine/renderer/tr_local.h b/src/engine/renderer/tr_local.h
index d69287dc05..a706f8b46a 100644
--- a/src/engine/renderer/tr_local.h
+++ b/src/engine/renderer/tr_local.h
@@ -2796,8 +2796,6 @@ enum class realtimeLightingRenderer_t { LEGACY, TILED };
 
 	extern glstate_t      glState; // outside of TR since it shouldn't be cleared during ref re-init
 
-	extern float          displayAspect; // FIXME
-
 //
 // cvars
 //
diff --git a/src/engine/renderer/tr_types.h b/src/engine/renderer/tr_types.h
index 62a28fab68..6d6e9f05a6 100644
--- a/src/engine/renderer/tr_types.h
+++ b/src/engine/renderer/tr_types.h
@@ -351,13 +351,11 @@ struct glconfig_t
 	glHardwareType_t     hardwareType;
 
 	textureCompression_t textureCompression;
-	bool8_t             textureEnvAddAvailable;
-	bool8_t             anisotropicAvailable; //----(SA)  added
-	float                maxAnisotropy; //----(SA)  added
 
-	int      vidWidth, vidHeight;
-
-	int   displayFrequency;
+	int displayIndex;
+	float displayAspect;
+	int displayWidth, displayHeight; // the entire monitor (the one indicated by displayIndex)
+	int vidWidth, vidHeight; // what the game is using
 
 	bool8_t smpActive; // dual processor
 };
diff --git a/src/engine/sys/sdl_glimp.cpp b/src/engine/sys/sdl_glimp.cpp
index 5428b1a3b1..3b81fe018c 100644
--- a/src/engine/sys/sdl_glimp.cpp
+++ b/src/engine/sys/sdl_glimp.cpp
@@ -567,8 +567,8 @@ static int GLimp_CompareModes( const void *a, const void *b )
 	float       aspectB = ( float ) modeB->w / ( float ) modeB->h;
 	int         areaA = modeA->w * modeA->h;
 	int         areaB = modeB->w * modeB->h;
-	float       aspectDiffA = fabsf( aspectA - displayAspect );
-	float       aspectDiffB = fabsf( aspectB - displayAspect );
+	float       aspectDiffA = fabsf( aspectA - glConfig.displayAspect );
+	float       aspectDiffB = fabsf( aspectB - glConfig.displayAspect );
 	float       aspectDiffsDiff = aspectDiffA - aspectDiffB;
 
 	if ( aspectDiffsDiff > ASPECT_EPSILON )
@@ -960,16 +960,18 @@ static rserr_t GLimp_SetModeAndResolution( const int mode )
 
 	if ( SDL_GetDesktopDisplayMode( r_displayIndex->integer, &desktopMode ) == 0 )
 	{
-		displayAspect = ( float ) desktopMode.w / ( float ) desktopMode.h;
+		glConfig.displayAspect = ( float ) desktopMode.w / ( float ) desktopMode.h;
+		logger.Notice( "Display aspect: %.3f", glConfig.displayAspect );
 	}
 	else
 	{
 		memset( &desktopMode, 0, sizeof( SDL_DisplayMode ) );
-		displayAspect = 1.333f;
-		logger.Warn("Cannot determine display aspect, assuming %.3f: %s", displayAspect, SDL_GetError() );
+		glConfig.displayAspect = 1.333f;
+		logger.Warn("Cannot determine display aspect, assuming %.3f: %s", glConfig.displayAspect, SDL_GetError() );
 	}
 
-	logger.Notice("Display aspect: %.3f", displayAspect );
+	glConfig.displayWidth = desktopMode.w;
+	glConfig.displayHeight = desktopMode.h;
 
 	if ( mode == -2 )
 	{
@@ -1616,6 +1618,7 @@ static bool GLimp_StartDriverAndSetMode( int mode, bool fullscreen, bool bordere
 #endif
 
 	AssertCvarRange( r_displayIndex, 0, numDisplays - 1, true );
+	glConfig.displayIndex = r_displayIndex->integer;
 
 	rserr_t err = GLimp_SetMode(mode, fullscreen, bordered);