Marco Trevisan (Treviño) has proposed merging 
~3v1n0/ubuntu/+source/mutter:ubuntu/master into 
~ubuntu-desktop/ubuntu/+source/mutter:ubuntu/master.

Requested reviews:
  Ubuntu Desktop (ubuntu-desktop)

For more details, see:
https://code.launchpad.net/~3v1n0/ubuntu/+source/mutter/+git/mutter/+merge/374693
-- 
Your team Ubuntu Desktop is requested to review the proposed merge of 
~3v1n0/ubuntu/+source/mutter:ubuntu/master into 
~ubuntu-desktop/ubuntu/+source/mutter:ubuntu/master.
diff --git a/clutter/clutter/clutter-actor-private.h b/clutter/clutter/clutter-actor-private.h
index 119ec42..fa2d4c3 100644
--- a/clutter/clutter/clutter-actor-private.h
+++ b/clutter/clutter/clutter-actor-private.h
@@ -274,6 +274,9 @@ void                            _clutter_actor_set_enable_paint_unmapped        
 void                            _clutter_actor_set_has_pointer                          (ClutterActor *self,
                                                                                          gboolean      has_pointer);
 
+void                            _clutter_actor_set_has_key_focus                        (ClutterActor *self,
+                                                                                         gboolean      has_key_focus);
+
 void                            _clutter_actor_queue_redraw_with_clip                   (ClutterActor             *self,
                                                                                          ClutterRedrawFlags        flags,
                                                                                          const ClutterPaintVolume *clip_volume);
diff --git a/clutter/clutter/clutter-actor.c b/clutter/clutter/clutter-actor.c
index e763291..ecf9a59 100644
--- a/clutter/clutter/clutter-actor.c
+++ b/clutter/clutter/clutter-actor.c
@@ -835,6 +835,7 @@ struct _ClutterActorPrivate
   guint enable_model_view_transform : 1;
   guint enable_paint_unmapped       : 1;
   guint has_pointer                 : 1;
+  guint has_key_focus               : 1;
   guint propagated_one_redraw       : 1;
   guint paint_volume_valid          : 1;
   guint last_paint_volume_valid     : 1;
@@ -1692,6 +1693,20 @@ clutter_actor_is_mapped (ClutterActor *self)
 }
 
 static void
+maybe_unset_key_focus (ClutterActor *self)
+{
+  ClutterActor *stage;
+
+  if (!self->priv->has_key_focus)
+    return;
+
+  stage = _clutter_actor_get_stage_internal (self);
+
+  if (stage)
+    clutter_stage_set_key_focus (CLUTTER_STAGE (stage), NULL);
+}
+
+static void
 clutter_actor_real_unmap (ClutterActor *self)
 {
   ClutterActorPrivate *priv = self->priv;
@@ -1724,17 +1739,7 @@ clutter_actor_real_unmap (ClutterActor *self)
 
   /* relinquish keyboard focus if we were unmapped while owning it */
   if (!CLUTTER_ACTOR_IS_TOPLEVEL (self))
-    {
-      ClutterStage *stage;
-
-      stage = CLUTTER_STAGE (_clutter_actor_get_stage_internal (self));
-
-      if (stage != NULL &&
-          clutter_stage_get_key_focus (stage) == self)
-        {
-          clutter_stage_set_key_focus (stage, NULL);
-        }
-    }
+    maybe_unset_key_focus (self);
 }
 
 /**
@@ -6064,6 +6069,8 @@ clutter_actor_dispose (GObject *object)
                 object->ref_count,
 		g_type_name (G_OBJECT_TYPE (self)));
 
+  maybe_unset_key_focus (self);
+
   /* Stop the emission of any property change */
   g_object_freeze_notify (object);
 
@@ -15979,6 +15986,9 @@ clutter_actor_grab_key_focus (ClutterActor *self)
 
   g_return_if_fail (CLUTTER_IS_ACTOR (self));
 
+  if (self->priv->has_key_focus)
+    return;
+
   stage = _clutter_actor_get_stage_internal (self);
   if (stage != NULL)
     clutter_stage_set_key_focus (CLUTTER_STAGE (stage), self);
@@ -16768,6 +16778,23 @@ _clutter_actor_set_has_pointer (ClutterActor *self,
     }
 }
 
+void
+_clutter_actor_set_has_key_focus (ClutterActor *self,
+                                  gboolean      has_key_focus)
+{
+  ClutterActorPrivate *priv = self->priv;
+
+  if (priv->has_key_focus != has_key_focus)
+    {
+      priv->has_key_focus = has_key_focus;
+
+      if (has_key_focus)
+        g_signal_emit (self, actor_signals[KEY_FOCUS_IN], 0);
+      else
+        g_signal_emit (self, actor_signals[KEY_FOCUS_OUT], 0);
+    }
+}
+
 /**
  * clutter_actor_get_text_direction:
  * @self: a #ClutterActor
@@ -17616,15 +17643,9 @@ clutter_actor_clear_effects (ClutterActor *self)
 gboolean
 clutter_actor_has_key_focus (ClutterActor *self)
 {
-  ClutterActor *stage;
-
   g_return_val_if_fail (CLUTTER_IS_ACTOR (self), FALSE);
 
-  stage = _clutter_actor_get_stage_internal (self);
-  if (stage == NULL)
-    return FALSE;
-
-  return clutter_stage_get_key_focus (CLUTTER_STAGE (stage)) == self;
+  return self->priv->has_key_focus;
 }
 
 static gboolean
diff --git a/clutter/clutter/clutter-shader-effect.c b/clutter/clutter/clutter-shader-effect.c
index a5ae1ee..c659dab 100644
--- a/clutter/clutter/clutter-shader-effect.c
+++ b/clutter/clutter/clutter-shader-effect.c
@@ -500,6 +500,7 @@ static void
 clutter_shader_effect_init (ClutterShaderEffect *effect)
 {
   effect->priv = clutter_shader_effect_get_instance_private (effect);
+  effect->priv->shader_type = CLUTTER_FRAGMENT_SHADER;
 }
 
 /**
diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c
index 245cb89..c4b88b3 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -1066,10 +1066,7 @@ clutter_stage_emit_key_focus_event (ClutterStage *stage,
   if (priv->key_focused_actor == NULL)
     return;
 
-  if (focus_in)
-    g_signal_emit_by_name (priv->key_focused_actor, "key-focus-in");
-  else
-    g_signal_emit_by_name (priv->key_focused_actor, "key-focus-out");
+  _clutter_actor_set_has_key_focus (CLUTTER_ACTOR (stage), focus_in);
 
   g_object_notify_by_pspec (G_OBJECT (stage), obj_props[PROP_KEY_FOCUS]);
 }
@@ -3011,14 +3008,6 @@ clutter_stage_get_title (ClutterStage       *stage)
   return stage->priv->title;
 }
 
-static void
-on_key_focus_destroy (ClutterActor *actor,
-                      ClutterStage *stage)
-{
-  /* unset the key focus */
-  clutter_stage_set_key_focus (stage, NULL);
-}
-
 /**
  * clutter_stage_set_key_focus:
  * @stage: the #ClutterStage
@@ -3058,18 +3047,14 @@ clutter_stage_set_key_focus (ClutterStage *stage,
       old_focused_actor = priv->key_focused_actor;
 
       /* set key_focused_actor to NULL before emitting the signal or someone
-       * might hide the previously focused actor in the signal handler and we'd
-       * get re-entrant call and get glib critical from g_object_weak_unref
+       * might hide the previously focused actor in the signal handler
        */
-      g_signal_handlers_disconnect_by_func (priv->key_focused_actor,
-                                            G_CALLBACK (on_key_focus_destroy),
-                                            stage);
       priv->key_focused_actor = NULL;
 
-      g_signal_emit_by_name (old_focused_actor, "key-focus-out");
+      _clutter_actor_set_has_key_focus (old_focused_actor, FALSE);
     }
   else
-    g_signal_emit_by_name (stage, "key-focus-out");
+    _clutter_actor_set_has_key_focus (CLUTTER_ACTOR (stage), FALSE);
 
   /* Note, if someone changes key focus in focus-out signal handler we'd be
    * overriding the latter call below moving the focus where it was originally
@@ -3079,14 +3064,10 @@ clutter_stage_set_key_focus (ClutterStage *stage,
   if (actor != NULL)
     {
       priv->key_focused_actor = actor;
-
-      g_signal_connect (actor,
-                        "destroy", G_CALLBACK (on_key_focus_destroy),
-                        stage);
-      g_signal_emit_by_name (priv->key_focused_actor, "key-focus-in");
+      _clutter_actor_set_has_key_focus (actor, TRUE);
     }
   else
-    g_signal_emit_by_name (stage, "key-focus-in");
+    _clutter_actor_set_has_key_focus (CLUTTER_ACTOR (stage), TRUE);
 
   g_object_notify_by_pspec (G_OBJECT (stage), obj_props[PROP_KEY_FOCUS]);
 }
diff --git a/cogl/cogl-pango/meson.build b/cogl/cogl-pango/meson.build
index 787ec01..06fba51 100644
--- a/cogl/cogl-pango/meson.build
+++ b/cogl/cogl-pango/meson.build
@@ -62,7 +62,7 @@ if have_introspection
     ],
     extra_args: introspection_args + [
       '-UCOGL_COMPILATION',
-      '-DG_LOG_DOMAIN=\"CoglPango\"',
+      '-DG_LOG_DOMAIN="CoglPango"',
     ],
     install_dir_gir: pkglibdir,
     install_dir_typelib: pkglibdir,
diff --git a/debian/changelog b/debian/changelog
index 06847be..2515499 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,34 @@
+mutter (3.34.1+git20191022-1ubuntu19.10.1) UNRELEASED; urgency=medium
+
+   * Merge with debian. Remaining changes:
+    + debian/control:
+      - Update VCS flags to point to launchpad
+      - Update maintainer to ubuntu
+    + debian/gbp.conf: update branch to point to ubuntu/master
+    + debian/patches/x11-Add-support-for-fractional-scaling-using-Randr.patch:
+      - X11: Add support for fractional scaling using Randr
+
+ -- Marco Trevisan (Treviño) <ma...@ubuntu.com>  Thu, 24 Oct 2019 03:28:30 +0200
+
+mutter (3.34.1+git20191022-1) unstable; urgency=medium
+
+  * New upstream snapshot release
+    + Fix night mode in wayland session (LP: #1847551)
+    + Don't emit key-focus-out events on destroyed actors (LP: #1848119)
+    + Fix an headers syntax error (LP: #1841709)
+    + backends: Update inhibited state for the monitor and respect that state
+    + clutter-backend-x11: Don't push keymap events to clutter
+    + Fix drag and drop for applications in wayland
+    + Avoid X11 roundtrips on underscanning checks
+
+ -- Marco Trevisan (Treviño) <ma...@ubuntu.com>  Wed, 23 Oct 2019 10:53:23 +0100
+
+mutter (3.34.1-3) unstable; urgency=medium
+
+  * Bump meson test timeout multiplier from 4 to 6 for armel
+
+ -- Jeremy Bicha <jbi...@debian.org>  Sun, 20 Oct 2019 22:48:29 -0400
+
 mutter (3.34.1-1ubuntu1) eoan; urgency=medium
 
   * Merge with debian. Remaining changes:
diff --git a/debian/rules b/debian/rules
index ce960f4..0a6150b 100755
--- a/debian/rules
+++ b/debian/rules
@@ -61,7 +61,7 @@ TEST_COMMAND_BASE=env \
 	XDG_RUNTIME_DIR=$(BUILDDIR)/XRD \
 	GSETTINGS_SCHEMA_DIR=$(BUILDDIR)/data \
 	dbus-run-session -- xvfb-run -s '+iglx -noreset' -a \
-	meson test -C $(BUILDDIR) --no-rebuild --verbose --timeout-multiplier 4 \
+	meson test -C $(BUILDDIR) --no-rebuild --verbose --timeout-multiplier 6 \
 	           --no-stdsplit --print-errorlogs
 TEST_COMMAND=$(TEST_COMMAND_BASE) --no-suite flaky
 TEST_COMMAND_FLAKY=$(TEST_COMMAND_BASE) --suite flaky
diff --git a/debian/watch b/debian/watch
index 35b7b17..d8c6911 100644
--- a/debian/watch
+++ b/debian/watch
@@ -1,3 +1,3 @@
 version=4
-https://download.gnome.org/sources/@PACKAGE@/([\d\.]+)/ \
-	@PACKAGE@@ANY_VERSION@\.tar\.xz
+https://download.gnome.org/sources/@PACKAGE@/([\d\.]+[02468])/ \
+	@PACKAGE@@ANY_VERSION@@ARCHIVE_EXT@
diff --git a/src/backends/meta-dbus-session-watcher.c b/src/backends/meta-dbus-session-watcher.c
index 22718e6..a885b42 100644
--- a/src/backends/meta-dbus-session-watcher.c
+++ b/src/backends/meta-dbus-session-watcher.c
@@ -214,6 +214,8 @@ meta_dbus_session_watcher_finalize (GObject *object)
   MetaDbusSessionWatcher *session_watcher = META_DBUS_SESSION_WATCHER (object);
 
   g_hash_table_destroy (session_watcher->clients);
+
+  G_OBJECT_CLASS (meta_dbus_session_watcher_parent_class)->finalize (object);
 }
 
 static void
diff --git a/src/backends/meta-idle-monitor.c b/src/backends/meta-idle-monitor.c
index 9fa4817..2ff1602 100644
--- a/src/backends/meta-idle-monitor.c
+++ b/src/backends/meta-idle-monitor.c
@@ -207,6 +207,8 @@ update_inhibited (MetaIdleMonitor *monitor,
   if (inhibited == monitor->inhibited)
     return;
 
+  monitor->inhibited = inhibited;
+
   g_hash_table_foreach (monitor->watches,
                         update_inhibited_watch,
                         monitor);
@@ -516,9 +518,16 @@ meta_idle_monitor_reset_idletime (MetaIdleMonitor *monitor)
         }
       else
         {
-          g_source_set_ready_time (watch->timeout_source,
-                                   monitor->last_event_time +
-                                   watch->timeout_msec * 1000);
+          if (monitor->inhibited)
+            {
+              g_source_set_ready_time (watch->timeout_source, -1);
+            }
+          else
+            {
+              g_source_set_ready_time (watch->timeout_source,
+                                       monitor->last_event_time +
+                                       watch->timeout_msec * 1000);
+            }
         }
     }
 
diff --git a/src/backends/meta-monitor-manager.c b/src/backends/meta-monitor-manager.c
index 41036ca..0210aee 100644
--- a/src/backends/meta-monitor-manager.c
+++ b/src/backends/meta-monitor-manager.c
@@ -1648,6 +1648,7 @@ create_monitor_config_from_variant (MetaMonitorManager *manager,
   MetaMonitorModeSpec *monitor_mode_spec;
   g_autoptr (GVariant) properties_variant = NULL;
   gboolean enable_underscanning = FALSE;
+  gboolean set_underscanning = FALSE;
 
   g_variant_get (monitor_config_variant, "(ss@a{sv})",
                  &connector,
@@ -1670,7 +1671,18 @@ create_monitor_config_from_variant (MetaMonitorManager *manager,
       return NULL;
     }
 
-  g_variant_lookup (properties_variant, "underscanning", "b", &enable_underscanning);
+  set_underscanning =
+    g_variant_lookup (properties_variant, "underscanning", "b",
+                      &enable_underscanning);
+  if (set_underscanning)
+    {
+      if (enable_underscanning && !meta_monitor_supports_underscanning (monitor))
+        {
+          g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+                       "Underscanning requested but unsupported");
+          return NULL;
+        }
+    }
 
   monitor_spec = meta_monitor_spec_clone (meta_monitor_get_spec (monitor));
 
diff --git a/src/backends/native/meta-kms-crtc.c b/src/backends/native/meta-kms-crtc.c
index 3610df9..da99a58 100644
--- a/src/backends/native/meta-kms-crtc.c
+++ b/src/backends/native/meta-kms-crtc.c
@@ -143,14 +143,26 @@ meta_kms_crtc_update_state (MetaKmsCrtc *crtc)
   drmModeFreeCrtc (drm_crtc);
 }
 
+static void
+clear_gamma_state (MetaKmsCrtc *crtc)
+{
+  crtc->current_state.gamma.size = 0;
+  g_clear_pointer (&crtc->current_state.gamma.red, g_free);
+  g_clear_pointer (&crtc->current_state.gamma.green, g_free);
+  g_clear_pointer (&crtc->current_state.gamma.blue, g_free);
+}
+
 void
 meta_kms_crtc_predict_state (MetaKmsCrtc   *crtc,
                              MetaKmsUpdate *update)
 {
+  gboolean is_gamma_valid;
   GList *mode_sets;
   GList *crtc_gammas;
   GList *l;
 
+  is_gamma_valid = TRUE;
+
   mode_sets = meta_kms_update_get_mode_sets (update);
   for (l = mode_sets; l; l = l->next)
     {
@@ -178,6 +190,8 @@ meta_kms_crtc_predict_state (MetaKmsCrtc   *crtc,
           crtc->current_state.drm_mode = (drmModeModeInfo) { 0 };
         }
 
+      is_gamma_valid = FALSE;
+
       break;
     }
 
@@ -196,8 +210,36 @@ meta_kms_crtc_predict_state (MetaKmsCrtc   *crtc,
         g_memdup (gamma->green, gamma->size * sizeof (uint16_t));
       crtc->current_state.gamma.blue =
         g_memdup (gamma->blue, gamma->size * sizeof (uint16_t));
+
+      is_gamma_valid = TRUE;
       break;
     }
+
+  if (!is_gamma_valid)
+    {
+      if (crtc->current_state.is_drm_mode_valid)
+        {
+          MetaKmsImplDevice *impl_device;
+          drmModeCrtc *drm_crtc;
+
+          impl_device = meta_kms_device_get_impl_device (crtc->device);
+          drm_crtc = drmModeGetCrtc (meta_kms_impl_device_get_fd (impl_device),
+                                     crtc->id);
+          if (drm_crtc)
+            {
+              read_gamma_state (crtc, impl_device, drm_crtc);
+              drmModeFreeCrtc (drm_crtc);
+            }
+          else
+            {
+              clear_gamma_state (crtc);
+            }
+        }
+      else
+        {
+          clear_gamma_state (crtc);
+        }
+    }
 }
 
 MetaKmsCrtc *
@@ -220,9 +262,7 @@ meta_kms_crtc_finalize (GObject *object)
 {
   MetaKmsCrtc *crtc = META_KMS_CRTC (object);
 
-  g_clear_pointer (&crtc->current_state.gamma.red, g_free);
-  g_clear_pointer (&crtc->current_state.gamma.green, g_free);
-  g_clear_pointer (&crtc->current_state.gamma.blue, g_free);
+  clear_gamma_state (crtc);
 
   G_OBJECT_CLASS (meta_kms_crtc_parent_class)->finalize (object);
 }
diff --git a/src/backends/native/meta-kms-update-private.h b/src/backends/native/meta-kms-update-private.h
index 88e2590..df7737c 100644
--- a/src/backends/native/meta-kms-update-private.h
+++ b/src/backends/native/meta-kms-update-private.h
@@ -110,6 +110,4 @@ GList * meta_kms_update_get_connector_properties (MetaKmsUpdate *update);
 
 GList * meta_kms_update_get_crtc_gammas (MetaKmsUpdate *update);
 
-gboolean meta_kms_update_has_mode_set (MetaKmsUpdate *update);
-
 #endif /* META_KMS_UPDATE_PRIVATE_H */
diff --git a/src/backends/native/meta-kms-update.c b/src/backends/native/meta-kms-update.c
index 2a4a05c..c946aa7 100644
--- a/src/backends/native/meta-kms-update.c
+++ b/src/backends/native/meta-kms-update.c
@@ -282,12 +282,6 @@ meta_kms_update_get_crtc_gammas (MetaKmsUpdate *update)
   return update->crtc_gammas;
 }
 
-gboolean
-meta_kms_update_has_mode_set (MetaKmsUpdate *update)
-{
-  return !!update->mode_sets;
-}
-
 void
 meta_kms_update_seal (MetaKmsUpdate *update)
 {
diff --git a/src/backends/native/meta-kms.c b/src/backends/native/meta-kms.c
index 9485bb4..804a1ad 100644
--- a/src/backends/native/meta-kms.c
+++ b/src/backends/native/meta-kms.c
@@ -211,8 +211,7 @@ meta_kms_update_process_in_impl (MetaKmsImpl  *impl,
 
   ret = meta_kms_impl_process_update (impl, update, error);
 
-  if (meta_kms_update_has_mode_set (update))
-    meta_kms_predict_states_in_impl (meta_kms_impl_get_kms (impl), update);
+  meta_kms_predict_states_in_impl (meta_kms_impl_get_kms (impl), update);
 
   return ret;
 }
diff --git a/src/backends/x11/meta-clutter-backend-x11.c b/src/backends/x11/meta-clutter-backend-x11.c
index 8d4b64b..b6334de 100644
--- a/src/backends/x11/meta-clutter-backend-x11.c
+++ b/src/backends/x11/meta-clutter-backend-x11.c
@@ -129,7 +129,7 @@ meta_clutter_backend_x11_translate_event (ClutterBackend *backend,
     return TRUE;
 
   if (meta_keymap_x11_handle_event (backend_x11->keymap, native))
-    return TRUE;
+    return FALSE;
 
   stage_x11 = META_STAGE_X11 (clutter_backend_get_stage_window (backend));
   if (meta_stage_x11_translate_event (stage_x11, native, event))
diff --git a/src/backends/x11/meta-event-x11.c b/src/backends/x11/meta-event-x11.c
index 8b4f4fc..19da223 100644
--- a/src/backends/x11/meta-event-x11.c
+++ b/src/backends/x11/meta-event-x11.c
@@ -82,12 +82,12 @@ meta_x11_handle_event (XEvent *xevent)
   gboolean allocated_event;
 
   /* The return values here are someone approximate; we return
-   * META_X11_FILTER_REMOVE if a clutter event is
+   * CLUTTER_X11_FILTER_REMOVE if a clutter event is
    * generated for the event. This mostly, but not entirely,
    * corresponds to whether other event processing should be
    * excluded. As long as the stage window is not shared with another
    * toolkit it should be safe, and never return
-   * %META_X11_FILTER_REMOVE when more processing is needed.
+   * %CLUTTER_X11_FILTER_REMOVE when more processing is needed.
    */
 
   result = CLUTTER_X11_FILTER_CONTINUE;
diff --git a/src/compositor/meta-window-actor.c b/src/compositor/meta-window-actor.c
index db9ccec..fd99844 100644
--- a/src/compositor/meta-window-actor.c
+++ b/src/compositor/meta-window-actor.c
@@ -2183,21 +2183,25 @@ meta_window_actor_get_image (MetaWindowActor *self,
   if (clutter_actor_get_n_children (actor) == 1)
     {
       MetaShapedTexture *stex;
-      MetaRectangle surface_clip;
-      int geometry_scale;
+      MetaRectangle *surface_clip = NULL;
 
-      geometry_scale =
-        meta_window_actor_get_geometry_scale (self);
+      if (clip)
+        {
 
-      surface_clip = (MetaRectangle) {
-        .x = clip->x / geometry_scale,
-        .y = clip->y / geometry_scale,
-        .width = clip->width / geometry_scale,
-        .height = clip->height / geometry_scale,
-      };
+          int geometry_scale;
+
+          geometry_scale =
+            meta_window_actor_get_geometry_scale (self);
+
+          surface_clip = g_alloca (sizeof (MetaRectangle));
+          surface_clip->x = clip->x / geometry_scale,
+          surface_clip->y = clip->y / geometry_scale;
+          surface_clip->width = clip->width / geometry_scale;
+          surface_clip->height = clip->height / geometry_scale;
+        }
 
       stex = meta_surface_actor_get_texture (priv->surface);
-      return meta_shaped_texture_get_image (stex, &surface_clip);
+      return meta_shaped_texture_get_image (stex, surface_clip);
     }
 
   clutter_actor_get_size (actor, &width, &height);
diff --git a/src/core/main.c b/src/core/main.c
index 7f4f666..3935f35 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -766,6 +766,6 @@ meta_test_init (void)
 
   close (fd);
 #else
-  g_error ("Tests require wayland support");
+  g_warning ("Tests require wayland support");
 #endif
 }
diff --git a/src/core/meta-selection-source-memory.c b/src/core/meta-selection-source-memory.c
index 04b7f39..c8b0c83 100644
--- a/src/core/meta-selection-source-memory.c
+++ b/src/core/meta-selection-source-memory.c
@@ -76,6 +76,9 @@ meta_selection_source_memory_get_mimetypes (MetaSelectionSource *source)
 {
   MetaSelectionSourceMemory *source_mem = META_SELECTION_SOURCE_MEMORY (source);
 
+  if (!source_mem->mimetype)
+    return NULL;
+
   return g_list_prepend (NULL, g_strdup (source_mem->mimetype));
 }
 
@@ -84,7 +87,7 @@ meta_selection_source_memory_finalize (GObject *object)
 {
   MetaSelectionSourceMemory *source_mem = META_SELECTION_SOURCE_MEMORY (object);
 
-  g_bytes_unref (source_mem->content);
+  g_clear_pointer (&source_mem->content, g_bytes_unref);
   g_free (source_mem->mimetype);
 
   G_OBJECT_CLASS (meta_selection_source_memory_parent_class)->finalize (object);
diff --git a/src/wayland/meta-selection-source-wayland-private.h b/src/wayland/meta-selection-source-wayland-private.h
index 6affc77..a6ada88 100644
--- a/src/wayland/meta-selection-source-wayland-private.h
+++ b/src/wayland/meta-selection-source-wayland-private.h
@@ -25,6 +25,8 @@
 #include <wayland-server.h>
 
 #include "meta/meta-selection-source.h"
+#include "wayland/meta-wayland-data-device.h"
+#include "wayland/meta-wayland-data-device-private.h"
 
 #define META_TYPE_SELECTION_SOURCE_WAYLAND (meta_selection_source_wayland_get_type ())
 
@@ -33,14 +35,6 @@ G_DECLARE_FINAL_TYPE (MetaSelectionSourceWayland,
                       META, SELECTION_SOURCE_WAYLAND,
                       MetaSelectionSource)
 
-typedef void (* MetaWaylandSendFunc) (struct wl_resource *resource,
-                                      const char         *mimetype,
-                                      int                 fd);
-typedef void (* MetaWaylandCancelFunc) (struct wl_resource *resource);
-
-MetaSelectionSource * meta_selection_source_wayland_new (struct wl_resource    *resource,
-                                                         GList                 *mime_types,
-                                                         MetaWaylandSendFunc    send_func,
-                                                         MetaWaylandCancelFunc  cancel_func);
+MetaSelectionSource * meta_selection_source_wayland_new (MetaWaylandDataSource *source);
 
 #endif /* META_SELECTION_SOURCE_WAYLAND_H */
diff --git a/src/wayland/meta-selection-source-wayland.c b/src/wayland/meta-selection-source-wayland.c
index 7031c91..4f6f0c3 100644
--- a/src/wayland/meta-selection-source-wayland.c
+++ b/src/wayland/meta-selection-source-wayland.c
@@ -29,10 +29,8 @@
 struct _MetaSelectionSourceWayland
 {
   MetaSelectionSource parent_instance;
+  MetaWaylandDataSource *data_source;
   GList *mimetypes;
-  MetaWaylandSendFunc send_func;
-  MetaWaylandCancelFunc cancel_func;
-  struct wl_resource *resource;
 };
 
 G_DEFINE_TYPE (MetaSelectionSourceWayland, meta_selection_source_wayland,
@@ -85,7 +83,8 @@ meta_selection_source_wayland_read_async (MetaSelectionSource *source,
   g_task_set_source_tag (task, meta_selection_source_wayland_read_async);
 
   stream = g_unix_input_stream_new (pipe_fds[0], TRUE);
-  source_wayland->send_func (source_wayland->resource, mimetype, pipe_fds[1]);
+  meta_wayland_data_source_send (source_wayland->data_source,
+                                 mimetype, pipe_fds[1]);
   close (pipe_fds[1]);
 
   g_task_return_pointer (task, stream, g_object_unref);
@@ -119,7 +118,7 @@ meta_selection_source_wayland_deactivated (MetaSelectionSource *source)
   MetaSelectionSourceWayland *source_wayland =
     META_SELECTION_SOURCE_WAYLAND (source);
 
-  source_wayland->cancel_func (source_wayland->resource);
+  meta_wayland_data_source_cancel (source_wayland->data_source);
   META_SELECTION_SOURCE_CLASS (meta_selection_source_wayland_parent_class)->deactivated (source);
 }
 
@@ -143,20 +142,29 @@ meta_selection_source_wayland_init (MetaSelectionSourceWayland *source)
 {
 }
 
+static GList *
+copy_string_array_to_list (struct wl_array *array)
+{
+  GList *l = NULL;
+  char **p;
+
+  wl_array_for_each (p, array)
+    l = g_list_prepend (l, g_strdup (*p));
+
+  return l;
+}
+
 MetaSelectionSource *
-meta_selection_source_wayland_new (struct wl_resource    *resource,
-                                   GList                 *mime_types,
-                                   MetaWaylandSendFunc    send_func,
-                                   MetaWaylandCancelFunc  cancel_func)
+meta_selection_source_wayland_new (MetaWaylandDataSource *data_source)
 {
   MetaSelectionSourceWayland *source_wayland;
+  struct wl_array *mimetypes;
 
   source_wayland = g_object_new (META_TYPE_SELECTION_SOURCE_WAYLAND, NULL);
-  source_wayland->mimetypes = g_list_copy_deep (mime_types,
-                                                (GCopyFunc) g_strdup, NULL);
-  source_wayland->send_func = send_func;
-  source_wayland->cancel_func = cancel_func;
-  source_wayland->resource = resource;
+  source_wayland->data_source = data_source;
+
+  mimetypes = meta_wayland_data_source_get_mime_types (data_source);
+  source_wayland->mimetypes = copy_string_array_to_list (mimetypes);
 
   return META_SELECTION_SOURCE (source_wayland);
 }
diff --git a/src/wayland/meta-wayland-actor-surface.c b/src/wayland/meta-wayland-actor-surface.c
index f74bfc5..a61a80e 100644
--- a/src/wayland/meta-wayland-actor-surface.c
+++ b/src/wayland/meta-wayland-actor-surface.c
@@ -241,6 +241,11 @@ meta_wayland_actor_surface_commit (MetaWaylandSurfaceRole  *surface_role,
   if (!priv->actor)
     return;
 
+  if (!wl_list_empty (&pending->frame_callback_list) &&
+      cairo_region_is_empty (pending->surface_damage) &&
+      cairo_region_is_empty (pending->buffer_damage))
+    clutter_actor_queue_redraw (CLUTTER_ACTOR (priv->actor));
+
   meta_wayland_actor_surface_queue_frame_callbacks (actor_surface, pending);
 
   meta_wayland_actor_surface_sync_actor_state (actor_surface);
diff --git a/src/wayland/meta-wayland-data-device.c b/src/wayland/meta-wayland-data-device.c
index 2ca77e8..38aa0f3 100644
--- a/src/wayland/meta-wayland-data-device.c
+++ b/src/wayland/meta-wayland-data-device.c
@@ -36,6 +36,7 @@
 #include <unistd.h>
 
 #include "compositor/meta-dnd-actor-private.h"
+#include "meta/meta-selection-source-memory.h"
 #include "wayland/meta-selection-source-wayland-private.h"
 #include "wayland/meta-wayland-dnd-surface.h"
 #include "wayland/meta-wayland-pointer.h"
@@ -59,6 +60,7 @@ struct _MetaWaylandDataOffer
   gboolean action_sent;
   uint32_t dnd_actions;
   enum wl_data_device_manager_dnd_action preferred_dnd_action;
+  MetaSelectionType selection_type;
 };
 
 typedef struct _MetaWaylandDataSourcePrivate
@@ -84,8 +86,6 @@ typedef struct _MetaWaylandDataSourceWayland
 typedef struct _MetaWaylandDataSourcePrimary
 {
   MetaWaylandDataSourceWayland parent;
-
-  struct wl_resource *resource;
 } MetaWaylandDataSourcePrimary;
 
 G_DEFINE_TYPE_WITH_PRIVATE (MetaWaylandDataSource, meta_wayland_data_source,
@@ -252,7 +252,7 @@ meta_wayland_data_source_get_mime_types (const MetaWaylandDataSource *source)
   return &priv->mime_types;
 }
 
-static void
+void
 meta_wayland_data_source_cancel (MetaWaylandDataSource *source)
 {
   META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->cancel (source);
@@ -400,11 +400,7 @@ data_offer_receive (struct wl_client *client, struct wl_resource *resource,
   GList *mime_types;
   gboolean found;
 
-  if (offer->dnd_actions != 0)
-    selection_type = META_SELECTION_DND;
-  else
-    selection_type = META_SELECTION_CLIPBOARD;
-
+  selection_type = offer->selection_type;
   mime_types = meta_selection_get_mimetypes (meta_display_get_selection (display),
                                              selection_type);
   found = g_list_find_custom (mime_types, mime_type, (GCompareFunc) g_strcmp0) != NULL;
@@ -623,6 +619,7 @@ create_and_send_dnd_offer (MetaWaylandDataSource *source,
   MetaWaylandDataOffer *offer = g_slice_new0 (MetaWaylandDataOffer);
   char **p;
 
+  offer->selection_type = META_SELECTION_DND;
   offer->source = source;
   g_object_add_weak_pointer (G_OBJECT (source), (gpointer *)&offer->source);
   offer->resource = wl_resource_create (wl_resource_get_client (target),
@@ -1154,18 +1151,6 @@ destroy_data_device_icon (struct wl_listener *listener, void *data)
     clutter_actor_remove_all_children (drag_grab->feedback_actor);
 }
 
-static GList *
-copy_string_array_to_list (struct wl_array *array)
-{
-  GList *l = NULL;
-  char **p;
-
-  wl_array_for_each (p, array)
-    l = g_list_prepend (l, g_strdup (*p));
-
-  return l;
-}
-
 void
 meta_wayland_data_device_start_drag (MetaWaylandDataDevice                 *data_device,
                                      struct wl_client                      *client,
@@ -1265,7 +1250,6 @@ data_device_start_drag (struct wl_client *client,
   MetaWaylandSurface *surface = NULL, *icon_surface = NULL;
   MetaWaylandDataSource *drag_source = NULL;
   MetaSelectionSource *selection_source;
-  GList *mimetypes;
 
   if (origin_resource)
     surface = wl_resource_get_user_data (origin_resource);
@@ -1301,14 +1285,10 @@ data_device_start_drag (struct wl_client *client,
       return;
     }
 
-  mimetypes = copy_string_array_to_list (meta_wayland_data_source_get_mime_types (drag_source));
-  selection_source = meta_selection_source_wayland_new (source_resource,
-                                                        mimetypes,
-                                                        wl_data_source_send_send,
-                                                        wl_data_source_send_cancelled);
-  g_list_free_full (mimetypes, g_free);
+  selection_source = meta_selection_source_wayland_new (drag_source);
   set_selection_source (data_device, META_SELECTION_DND,
                         selection_source);
+  g_object_unref (selection_source);
 
   meta_wayland_pointer_set_focus (seat->pointer, NULL);
   meta_wayland_data_device_start_drag (data_device, client,
@@ -1370,7 +1350,8 @@ meta_wayland_source_cancel (MetaWaylandDataSource *source)
   MetaWaylandDataSourceWayland *source_wayland =
     META_WAYLAND_DATA_SOURCE_WAYLAND (source);
 
-  wl_data_source_send_cancelled (source_wayland->resource);
+  if (source_wayland->resource)
+    wl_data_source_send_cancelled (source_wayland->resource);
 }
 
 static void
@@ -1421,7 +1402,7 @@ meta_wayland_source_drag_finished (MetaWaylandDataSource *source)
 static void
 meta_wayland_source_finalize (GObject *object)
 {
-  G_OBJECT_CLASS (meta_wayland_data_source_parent_class)->finalize (object);
+  G_OBJECT_CLASS (meta_wayland_data_source_wayland_parent_class)->finalize (object);
 }
 
 static void
@@ -1451,10 +1432,10 @@ meta_wayland_data_source_primary_send (MetaWaylandDataSource *source,
                                        const gchar           *mime_type,
                                        gint                   fd)
 {
-  MetaWaylandDataSourcePrimary *source_primary;
+  MetaWaylandDataSourceWayland *source_wayland;
 
-  source_primary = META_WAYLAND_DATA_SOURCE_PRIMARY (source);
-  gtk_primary_selection_source_send_send (source_primary->resource,
+  source_wayland = META_WAYLAND_DATA_SOURCE_WAYLAND (source);
+  gtk_primary_selection_source_send_send (source_wayland->resource,
                                           mime_type, fd);
   close (fd);
 }
@@ -1462,10 +1443,11 @@ meta_wayland_data_source_primary_send (MetaWaylandDataSource *source,
 static void
 meta_wayland_data_source_primary_cancel (MetaWaylandDataSource *source)
 {
-  MetaWaylandDataSourcePrimary *source_primary;
+  MetaWaylandDataSourceWayland *source_wayland;
 
-  source_primary = META_WAYLAND_DATA_SOURCE_PRIMARY (source);
-  gtk_primary_selection_source_send_cancelled (source_primary->resource);
+  source_wayland = META_WAYLAND_DATA_SOURCE_WAYLAND (source);
+  if (source_wayland->resource)
+    gtk_primary_selection_source_send_cancelled (source_wayland->resource);
 }
 
 static void
@@ -1644,6 +1626,7 @@ meta_wayland_data_device_set_selection (MetaWaylandDataDevice *data_device,
   MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
   struct wl_resource *data_device_resource;
   struct wl_client *focus_client;
+  MetaSelectionSource *selection_source;
 
   if (data_device->selection_data_source &&
       data_device->selection_serial - serial < UINT32_MAX / 2)
@@ -1661,43 +1644,34 @@ meta_wayland_data_device_set_selection (MetaWaylandDataDevice *data_device,
   data_device->selection_data_source = source;
   data_device->selection_serial = serial;
 
-  focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
-  if (focus_client)
-    {
-      data_device_resource = wl_resource_find_for_client (&data_device->resource_list, focus_client);
-      if (data_device_resource)
-        {
-          struct wl_resource *offer;
-          offer = create_and_send_clipboard_offer (data_device, data_device_resource);
-          wl_data_device_send_selection (data_device_resource, offer);
-        }
-    }
-
   if (source)
     {
-      MetaWaylandDataSourceWayland *source_wayland =
-        META_WAYLAND_DATA_SOURCE_WAYLAND (source);
-      MetaSelectionSource *selection_source;
-      GList *mimetypes;
-
       meta_wayland_data_source_set_seat (source, seat);
       g_object_weak_ref (G_OBJECT (source),
                          selection_data_source_destroyed,
                          data_device);
 
-      mimetypes = copy_string_array_to_list (meta_wayland_data_source_get_mime_types (source));
-      selection_source = meta_selection_source_wayland_new (source_wayland->resource,
-                                                            mimetypes,
-                                                            wl_data_source_send_send,
-                                                            wl_data_source_send_cancelled);
-      g_list_free_full (mimetypes, g_free);
-
-      set_selection_source (data_device, META_SELECTION_CLIPBOARD,
-                            selection_source);
+      selection_source = meta_selection_source_wayland_new (source);
     }
   else
     {
-      unset_selection_source (data_device, META_SELECTION_CLIPBOARD);
+      selection_source = g_object_new (META_TYPE_SELECTION_SOURCE_MEMORY, NULL);
+    }
+
+  set_selection_source (data_device, META_SELECTION_CLIPBOARD,
+                        selection_source);
+  g_object_unref (selection_source);
+
+  focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
+  if (focus_client)
+    {
+      data_device_resource = wl_resource_find_for_client (&data_device->resource_list, focus_client);
+      if (data_device_resource)
+        {
+          struct wl_resource *offer;
+          offer = create_and_send_clipboard_offer (data_device, data_device_resource);
+          wl_data_device_send_selection (data_device_resource, offer);
+        }
     }
 
   wl_signal_emit (&data_device->selection_ownership_signal, source);
@@ -1773,12 +1747,13 @@ meta_wayland_data_device_set_primary (MetaWaylandDataDevice *data_device,
   MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
   struct wl_resource *data_device_resource;
   struct wl_client *focus_client;
+  MetaSelectionSource *selection_source;
 
   if (META_IS_WAYLAND_DATA_SOURCE_PRIMARY (source))
     {
       struct wl_resource *resource;
 
-      resource = META_WAYLAND_DATA_SOURCE_PRIMARY (source)->resource;
+      resource = META_WAYLAND_DATA_SOURCE_WAYLAND (source)->resource;
 
       if (wl_resource_get_client (resource) !=
           meta_wayland_keyboard_get_focus_client (seat->keyboard))
@@ -1800,41 +1775,34 @@ meta_wayland_data_device_set_primary (MetaWaylandDataDevice *data_device,
   data_device->primary_data_source = source;
   data_device->primary_serial = serial;
 
-  focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
-  if (focus_client)
-    {
-      data_device_resource = wl_resource_find_for_client (&data_device->primary_resource_list, focus_client);
-      if (data_device_resource)
-        {
-          struct wl_resource *offer;
-          offer = create_and_send_primary_offer (data_device, data_device_resource);
-          gtk_primary_selection_device_send_selection (data_device_resource, offer);
-        }
-    }
-
   if (source)
     {
-      MetaSelectionSource *selection_source;
-      GList *mimetypes;
-
       meta_wayland_data_source_set_seat (source, seat);
       g_object_weak_ref (G_OBJECT (source),
                          primary_source_destroyed,
                          data_device);
 
-      mimetypes = copy_string_array_to_list (meta_wayland_data_source_get_mime_types (source));
-      selection_source = meta_selection_source_wayland_new (META_WAYLAND_DATA_SOURCE_PRIMARY (source)->resource,
-                                                            mimetypes,
-                                                            gtk_primary_selection_source_send_send,
-                                                            gtk_primary_selection_source_send_cancelled);
-      g_list_free_full (mimetypes, g_free);
-
-      set_selection_source (data_device, META_SELECTION_PRIMARY,
-                            selection_source);
+      selection_source = meta_selection_source_wayland_new (source);
     }
   else
     {
-      unset_selection_source (data_device, META_SELECTION_PRIMARY);
+      selection_source = g_object_new (META_TYPE_SELECTION_SOURCE_MEMORY, NULL);
+    }
+
+  set_selection_source (data_device, META_SELECTION_PRIMARY,
+                        selection_source);
+  g_object_unref (selection_source);
+
+  focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
+  if (focus_client)
+    {
+      data_device_resource = wl_resource_find_for_client (&data_device->primary_resource_list, focus_client);
+      if (data_device_resource)
+        {
+          struct wl_resource *offer;
+          offer = create_and_send_primary_offer (data_device, data_device_resource);
+          gtk_primary_selection_device_send_selection (data_device_resource, offer);
+        }
     }
 
   wl_signal_emit (&data_device->primary_ownership_signal, source);
@@ -1968,7 +1936,7 @@ static const struct wl_data_device_manager_interface manager_interface = {
 static void
 destroy_primary_source (struct wl_resource *resource)
 {
-  MetaWaylandDataSourcePrimary *source = wl_resource_get_user_data (resource);
+  MetaWaylandDataSourceWayland *source = wl_resource_get_user_data (resource);
 
   source->resource = NULL;
   g_object_unref (source);
@@ -2073,6 +2041,7 @@ create_and_send_clipboard_offer (MetaWaylandDataDevice *data_device,
     return NULL;
 
   offer = g_slice_new0 (MetaWaylandDataOffer);
+  offer->selection_type = META_SELECTION_CLIPBOARD;
   offer->resource = wl_resource_create (wl_resource_get_client (target),
                                         &wl_data_offer_interface,
                                         wl_resource_get_version (target), 0);
@@ -2105,6 +2074,7 @@ create_and_send_primary_offer (MetaWaylandDataDevice *data_device,
     return NULL;
 
   offer = g_slice_new0 (MetaWaylandDataOffer);
+  offer->selection_type = META_SELECTION_PRIMARY;
   offer->resource = wl_resource_create (wl_resource_get_client (target),
                                         &gtk_primary_selection_offer_interface,
                                         wl_resource_get_version (target), 0);
@@ -2204,7 +2174,7 @@ meta_wayland_data_source_wayland_new (struct wl_resource *resource)
 static MetaWaylandDataSource *
 meta_wayland_data_source_primary_new (struct wl_resource *resource)
 {
-  MetaWaylandDataSourcePrimary *source_primary =
+  MetaWaylandDataSourceWayland *source_primary =
     g_object_new (META_TYPE_WAYLAND_DATA_SOURCE_PRIMARY, NULL);
 
   source_primary->resource = resource;
diff --git a/src/wayland/meta-wayland-data-device.h b/src/wayland/meta-wayland-data-device.h
index 729baac..efa5478 100644
--- a/src/wayland/meta-wayland-data-device.h
+++ b/src/wayland/meta-wayland-data-device.h
@@ -111,6 +111,8 @@ gboolean meta_wayland_data_source_has_target     (MetaWaylandDataSource *source)
 void     meta_wayland_data_source_set_has_target (MetaWaylandDataSource *source,
                                                   gboolean               has_target);
 
+void     meta_wayland_data_source_cancel         (MetaWaylandDataSource *source);
+
 void     meta_wayland_data_source_send           (MetaWaylandDataSource *source,
                                                   const gchar           *mime_type,
                                                   gint                   fd);
diff --git a/src/wayland/meta-wayland-surface.c b/src/wayland/meta-wayland-surface.c
index 5def3c5..163b7c5 100644
--- a/src/wayland/meta-wayland-surface.c
+++ b/src/wayland/meta-wayland-surface.c
@@ -401,7 +401,7 @@ static void
 pending_buffer_resource_destroyed (MetaWaylandBuffer       *buffer,
                                    MetaWaylandPendingState *pending)
 {
-  g_signal_handler_disconnect (buffer, pending->buffer_destroy_handler_id);
+  g_clear_signal_handler (&pending->buffer_destroy_handler_id, buffer);
   pending->buffer = NULL;
 }
 
@@ -972,8 +972,12 @@ wl_surface_frame (struct wl_client *client,
 
   callback = g_slice_new0 (MetaWaylandFrameCallback);
   callback->surface = surface;
-  callback->resource = wl_resource_create (client, &wl_callback_interface, META_WL_CALLBACK_VERSION, callback_id);
-  wl_resource_set_implementation (callback->resource, NULL, callback, destroy_frame_callback);
+  callback->resource = wl_resource_create (client,
+                                           &wl_callback_interface,
+                                           META_WL_CALLBACK_VERSION,
+                                           callback_id);
+  wl_resource_set_implementation (callback->resource, NULL, callback,
+                                  destroy_frame_callback);
 
   wl_list_insert (surface->pending->frame_callback_list.prev, &callback->link);
 }
@@ -1370,7 +1374,9 @@ wl_surface_destructor (struct wl_resource *resource)
 
   meta_wayland_compositor_destroy_frame_callbacks (compositor, surface);
 
-  g_hash_table_foreach (surface->outputs_to_destroy_notify_id, surface_output_disconnect_signal, surface);
+  g_hash_table_foreach (surface->outputs_to_destroy_notify_id,
+                        surface_output_disconnect_signal,
+                        surface);
   g_hash_table_unref (surface->outputs_to_destroy_notify_id);
 
   wl_list_for_each_safe (cb, next, &surface->pending_frame_callback_list, link)
@@ -1419,12 +1425,20 @@ meta_wayland_surface_create (MetaWaylandCompositor *compositor,
                              guint32                id)
 {
   MetaWaylandSurface *surface = g_object_new (META_TYPE_WAYLAND_SURFACE, NULL);
+  int surface_version;
 
   surface->compositor = compositor;
   surface->scale = 1;
 
-  surface->resource = wl_resource_create (client, &wl_surface_interface, wl_resource_get_version (compositor_resource), id);
-  wl_resource_set_implementation (surface->resource, &meta_wayland_wl_surface_interface, surface, wl_surface_destructor);
+  surface_version = wl_resource_get_version (compositor_resource);
+  surface->resource = wl_resource_create (client,
+                                          &wl_surface_interface,
+                                          surface_version,
+                                          id);
+  wl_resource_set_implementation (surface->resource,
+                                  &meta_wayland_wl_surface_interface,
+                                  surface,
+                                  wl_surface_destructor);
 
   wl_list_init (&surface->pending_frame_callback_list);
 
diff --git a/src/x11/meta-selection-source-x11.c b/src/x11/meta-selection-source-x11.c
index 15a7636..55e5003 100644
--- a/src/x11/meta-selection-source-x11.c
+++ b/src/x11/meta-selection-source-x11.c
@@ -82,6 +82,15 @@ meta_selection_source_x11_read_async (MetaSelectionSource *source,
   task = g_task_new (source, cancellable, callback, user_data);
   g_task_set_source_tag (task, meta_selection_source_x11_read_async);
 
+  if (strcmp (mimetype, "text/plain") == 0 &&
+      g_list_find_custom (source_x11->mimetypes, "STRING",
+                          (GCompareFunc) g_strcmp0))
+    mimetype = "STRING";
+  else if (strcmp (mimetype, "text/plain;charset=utf-8") == 0 &&
+           g_list_find_custom (source_x11->mimetypes, "UTF8_STRING",
+                               (GCompareFunc) g_strcmp0))
+    mimetype = "UTF8_STRING";
+
   meta_x11_selection_input_stream_new_async (source_x11->x11_display,
                                              source_x11->x11_display->selection.xwindow,
                                              gdk_x11_get_xatom_name (source_x11->xselection),
@@ -139,6 +148,8 @@ atoms_to_mimetypes (MetaX11Display *display,
   const Atom *atoms;
   gsize size;
   guint i, n_atoms;
+  gboolean utf8_string_found = FALSE, utf8_text_plain_found = FALSE;
+  gboolean string_found = FALSE, text_plain_found = FALSE;
 
   atoms = g_bytes_get_data (bytes, &size);
   n_atoms = size / sizeof (Atom);
@@ -149,8 +160,19 @@ atoms_to_mimetypes (MetaX11Display *display,
 
       mimetype = gdk_x11_get_xatom_name (atoms[i]);
       mimetypes = g_list_prepend (mimetypes, g_strdup (mimetype));
+
+      utf8_text_plain_found |= strcmp (mimetype, "text/plain;charset=utf-8") == 0;
+      text_plain_found |= strcmp (mimetype, "text/plain") == 0;
+      utf8_string_found |= strcmp (mimetype, "UTF8_STRING") == 0;
+      string_found |= strcmp (mimetype, "STRING") == 0;
     }
 
+  /* Ensure non-x11 clients get well-known mimetypes */
+  if (string_found && !text_plain_found)
+    mimetypes = g_list_prepend (mimetypes, g_strdup ("text/plain"));
+  if (utf8_string_found && !utf8_text_plain_found)
+    mimetypes = g_list_prepend (mimetypes, g_strdup ("text/plain;charset=utf-8"));
+
   return mimetypes;
 }
 
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