diff --git a/reactos/subsystems/ntvdm/hardware/vga.c b/reactos/subsystems/ntvdm/hardware/vga.c
index 3dc376d8517..4b96de0963b 100644
--- a/reactos/subsystems/ntvdm/hardware/vga.c
+++ b/reactos/subsystems/ntvdm/hardware/vga.c
@@ -1117,7 +1117,7 @@ static VOID VgaChangeMode(VOID)
         /* Enter new text mode */
         if (!VgaEnterTextMode(&Resolution))
         {
-            DisplayMessage(L"An unexpected VGA error occurred while switching into text mode.");
+            DisplayMessage(L"An unexpected VGA error occurred while switching into text mode. Error: %u", GetLastError());
             EmulatorTerminate();
             return;
         }
@@ -1127,7 +1127,7 @@ static VOID VgaChangeMode(VOID)
         /* Enter graphics mode */
         if (!VgaEnterGraphicsMode(&Resolution))
         {
-            DisplayMessage(L"An unexpected VGA error occurred while switching into graphics mode.");
+            DisplayMessage(L"An unexpected VGA error occurred while switching into graphics mode. Error: %u", GetLastError());
             EmulatorTerminate();
             return;
         }