diff --git a/src/graphics/presentation/videoOut.cpp b/src/graphics/presentation/videoOut.cpp
index 8847b9bce..d67d60896 100644
--- a/src/graphics/presentation/videoOut.cpp
+++ b/src/graphics/presentation/videoOut.cpp
@@ -20,6 +20,7 @@
 #include "kernel/pthread.h"
 #include "libs/errno.h"
 #include "libs/libs.h"
+#include "loader/systemContent.h"
 
 #include <algorithm>
 #include <array>
@@ -1654,8 +1655,12 @@ KYTY_SYSV_ABI int VideoOutGetOutputStatus(int handle, VideoOutOutputStatus* stat
 		return VIDEO_OUT_ERROR_INVALID_HANDLE;
 	}
 
+	int32_t attribute3 = 0;
+	Loader::SystemContentParamSfoGetInt("ATTRIBUTE3", &attribute3);
 	ctx->mutex.Lock();
-	status->resolution   = (ctx->width >= 3840 || ctx->height >= 2160 ? 2u : 1u);
+	// Primary output reports 4K unless param.json Video-out Info enables resolution detection.
+	status->resolution =
+	    ((attribute3 & 4) != 0 && ctx->width < 3840 && ctx->height < 2160 ? 1u : 2u);
 	status->dynamicRange = 1;
 	status->refreshRate =
 	    (ctx->output_mode == VIDEO_OUT_OUTPUT_MODE_119_88HZ || Config::GetVblankFrequency() >= 119
diff --git a/src/loader/systemContent.cpp b/src/loader/systemContent.cpp
index f4a4c27fc..b86fcff76 100644
--- a/src/loader/systemContent.cpp
+++ b/src/loader/systemContent.cpp
@@ -164,6 +164,7 @@ void Psf::OpenJson(const std::filesystem::path& file_name) {
 	add_string_param("contentId", "CONTENT_ID");
 	add_string_param("contentVersion", "APP_VER");
 	add_string_param("appVersion", "APP_VER");
+	add_int_param("attribute3", "ATTRIBUTE3");
 	add_int_param("userDefinedParam1", "USER_DEFINED_PARAM_1");
 	add_int_param("userDefinedParam2", "USER_DEFINED_PARAM_2");
 	add_int_param("userDefinedParam3", "USER_DEFINED_PARAM_3");