diff -Nuar a/xpra/scripts/config.py b/xpra/scripts/config.py
--- a/xpra/scripts/config.py	2020-05-10 19:00:55.000000000 +0200
+++ b/xpra/scripts/config.py	2020-06-07 18:35:49.361899872 +0200
@@ -150,7 +150,7 @@
             if (xorg_stat.st_mode & stat.S_ISUID)!=0:
                 if (xorg_stat.st_mode & stat.S_IROTH)==0:
                     if warn:
-                        warn("%s is suid and not readable, Xdummy support unavailable" % xorg_bin)
+                        debug("%s is suid and not readable, Xdummy support unavailable" % xorg_bin)
                     return get_Xvfb_command()
                 debug("%s is suid and readable, using the xpra_Xdummy wrapper" % xorg_bin)
                 use_wrapper = True