do not apply rotation if the screen is not portrait screen

ValveSoftware · Dec 22, 2024 · 3831a9e · 3831a9e
1 parent ffbb731
commit 3831a9e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/Backends/DRMBackend.cpp b/src/Backends/DRMBackend.cpp
@@ -3031,10 +3031,12 @@ bool drm_set_mode( struct drm_t *drm, const drmModeModeInfo *mode )
 		g_nOutputWidth = mode->hdisplay;
 		g_nOutputHeight = mode->vdisplay;
 
-		if (g_bUseRotationShader) {
+		if (g_bUseRotationShader && mode->vdisplay > mode->hdisplay) {
 			g_bRotated = true;
 			g_nOutputWidth = mode->vdisplay;
 			g_nOutputHeight = mode->hdisplay;
+		} else {
+			g_bUseRotationShader = false;
 		}
 
 		break;