diff --git a/core/rend/vulkan/vulkan_context.cpp b/core/rend/vulkan/vulkan_context.cpp
index 2f7a4a98f..15e07587e 100644
--- a/core/rend/vulkan/vulkan_context.cpp
+++ b/core/rend/vulkan/vulkan_context.cpp
@@ -728,6 +728,18 @@ bool VulkanContext::init()
 	float hdpi, vdpi;
 	if (!SDL_GetDisplayDPI(SDL_GetWindowDisplayIndex(sdlWin), nullptr, &hdpi, &vdpi))
 		settings.display.dpi = roundf(std::max(hdpi, vdpi));
+
+#ifdef __linux__
+	// Fixing Steam Deck's incorrect 60mm * 60mm EDID 
+	if (settings.display.dpi > 500)
+	{
+		int displayIndex = SDL_GetWindowDisplayIndex(sdlWin);
+		SDL_DisplayMode mode;
+		SDL_GetDisplayMode(displayIndex, 0, &mode);
+		if ( displayIndex == 0 && strcmp(SDL_GetDisplayName(displayIndex), "ANX7530 U 3\"") == 0 && mode.w == 1280 && mode.h == 800 )
+			settings.display.dpi = 206;
+	}
+#endif
 #elif defined(_WIN32)
 	vk::Win32SurfaceCreateInfoKHR createInfo(vk::Win32SurfaceCreateFlagsKHR(), GetModuleHandle(NULL), (HWND)window);
 	surface = instance->createWin32SurfaceKHRUnique(createInfo);
diff --git a/core/wsi/sdl.cpp b/core/wsi/sdl.cpp
index 316292dbf..4fd1384f0 100644
--- a/core/wsi/sdl.cpp
+++ b/core/wsi/sdl.cpp
@@ -84,6 +84,18 @@ bool SDLGLGraphicsContext::init()
 	float hdpi, vdpi;
 	if (!SDL_GetDisplayDPI(SDL_GetWindowDisplayIndex(sdlWindow), nullptr, &hdpi, &vdpi))
 		settings.display.dpi = roundf(std::max(hdpi, vdpi));
+	
+#ifdef __linux__
+	// Fixing Steam Deck's incorrect 60mm * 60mm EDID
+	if (settings.display.dpi > 500)
+	{
+		int displayIndex = SDL_GetWindowDisplayIndex(sdlWindow);
+		SDL_DisplayMode mode;
+		SDL_GetDisplayMode(displayIndex, 0, &mode);
+		if ( displayIndex == 0 && strcmp(SDL_GetDisplayName(displayIndex), "ANX7530 U 3\"") == 0 && mode.w == 1280 && mode.h == 800 )
+			settings.display.dpi = 206;
+	}
+#endif
 
 	INFO_LOG(RENDERER, "Created SDL Window and GL Context successfully");