diff --git a/Editor/main_SDL2.cpp b/Editor/main_SDL2.cpp
index caf806721..53a416229 100644
--- a/Editor/main_SDL2.cpp
+++ b/Editor/main_SDL2.cpp
@@ -197,7 +197,7 @@ int main(int argc, char *argv[])
             "Wicked Engine Editor",
             SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
             w, h,
-            SDL_WINDOW_SHOWN | SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE);
+            SDL_WINDOW_SHOWN | SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
     if (!window) {
         throw sdl2::SDLError("Error creating window");
     }
diff --git a/Tests/main_SDL2.cpp b/Tests/main_SDL2.cpp
index fd493e656..43c7fb6ca 100644
--- a/Tests/main_SDL2.cpp
+++ b/Tests/main_SDL2.cpp
@@ -64,7 +64,7 @@ int main(int argc, char *argv[])
             "Wicked Engine Tests",
             SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
             1280, 800,
-            SDL_WINDOW_SHOWN | SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE);
+            SDL_WINDOW_SHOWN | SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
     if (!window) {
         throw sdl2::SDLError("Error creating window");
     }
diff --git a/WickedEngine/wiPlatform.h b/WickedEngine/wiPlatform.h
index 0f17d6abf..7a77877ad 100644
--- a/WickedEngine/wiPlatform.h
+++ b/WickedEngine/wiPlatform.h
@@ -38,6 +38,7 @@ typedef void* HMODULE;
 
 #ifdef SDL2
 #include <SDL2/SDL.h>
+#include <SDL_vulkan.h>
 #include "sdl2.h"
 #endif
 
@@ -94,8 +95,10 @@ namespace wiPlatform
 #endif // PLATFORM_UWP
 
 #ifdef PLATFORM_LINUX
-		dest->dpi = 96; // todo
-		SDL_GetWindowSize(window, &dest->width, &dest->height);
+		int window_width, window_height;
+		SDL_GetWindowSize(window, &window_width, &window_height);
+		SDL_Vulkan_GetDrawableSize(window, &dest->width, &dest->height);
+		dest->dpi = ((float) dest->width / (float) window_width) * 96.0;
 #endif // PLATFORM_LINUX
 	}
 }