@@ -39,6 +39,7 @@ - GBA Memory: Fix STM/LDM to invalid VRAM
  - GB: Fix savedata initialization (fixes mgba.io/i/1473, mgba.io/i/1478)
  - GB Memory: Better emulate 0xFEA0 region on DMG, MGB and AGB
  - GB Printer: Reset printer buffer index after printing
+ - GB Video: Fix mode 0 window edge case (fixes mgba.io/i/1519)
 Other fixes:
  - Qt: Fix some Qt display driver race conditions
  - Core: Improved lockstep driver reliability (Le Hoang Quyen)

@@ -224,6 +224,9 @@ static void GBVideoSoftwareRendererUpdateWindow(struct GBVideoSoftwareRenderer* renderer, bool before, bool after, uint8_t oldWy) {
 	if (renderer->lastY >= GB_VIDEO_VERTICAL_PIXELS || !(after || before)) {
 		return;
 	}
+	if (!renderer->hasWindow && renderer->lastX == GB_VIDEO_HORIZONTAL_PIXELS) {
+		return;
+	}
 	if (renderer->lastY >= oldWy) {
 		if (!after) {
 			renderer->currentWy -= renderer->lastY;