diff --git a/utils/EdidWrapper.h b/utils/EdidWrapper.h
index 30124d7..137e8be 100644
--- a/utils/EdidWrapper.h
+++ b/utils/EdidWrapper.h
@@ -18,6 +18,7 @@
 
 #if HAS_LIBDISPLAY_INFO
 extern "C" {
+#include <libdisplay-info/edid.h>
 #include <libdisplay-info/info.h>
 }
 #endif
@@ -48,6 +49,16 @@
   virtual void GetColorModes(std::vector<Colormode> &color_modes) {
     color_modes.clear();
   };
+  virtual int GetDpiX() {
+    return -1;
+  }
+  virtual int GetDpiY() {
+    return -1;
+  }
+
+  virtual auto GetBoundsMm() -> std::pair<int32_t, int32_t> {
+    return {-1, -1};
+  }
 };
 
 #if HAS_LIBDISPLAY_INFO
@@ -70,10 +81,17 @@
 
   void GetColorModes(std::vector<Colormode> &color_modes) override;
 
+  auto GetDpiX() -> int override;
+  auto GetDpiY() -> int override;
+
+  auto GetBoundsMm() -> std::pair<int32_t, int32_t> override;
+
  private:
   LibdisplayEdidWrapper(di_info *info) : info_(std::move(info)) {
   }
 
+  std::pair<int32_t, int32_t> GetDpi();
+
   di_info *info_{};
 };
 #endif