diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index e21a0beaf98cb22..d6b06bdb36f83ce 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -267,6 +267,10 @@ class ProcessSerialNumber(Structure):
             if (  (app_services.GetCurrentProcess(psn_p) < 0) or
                   (app_services.SetFrontProcess(psn_p) < 0) ):
                 reason = "cannot run without OS X gui process"
+        if reason:
+            # Try XQuartz
+            if os.environ.get("DISPLAY") is not None:
+                reason = None
 
     # check on every platform whether tkinter can actually do anything
     if not reason: