diff --git a/src/xpra/gl/gl_window_backing.py b/src/xpra/gl/gl_window_backing.py
index cf2ce2b4e5..8365a1485c 100644
--- a/src/xpra/gl/gl_window_backing.py
+++ b/src/xpra/gl/gl_window_backing.py
@@ -45,7 +45,7 @@ class GLPixmapBacking(PixmapBacking):
 
     def __init__(self, wid, w, h, mmap_enabled, mmap):
         PixmapBacking.__init__(self, wid, w, h, mmap_enabled, mmap)
-        display_mode = gtk.gdkgl.MODE_RGB | gtk.gdkgl.MODE_DEPTH
+        display_mode = gtk.gdkgl.MODE_RGB | gtk.gdkgl.MODE_DOUBLE
         try:
             self.glconfig = gtk.gdkgl.Config(mode=display_mode)
         except gtk.gdkgl.NoMatches: