use upstream commit

fix_wayland_freeze.patch

@@ -1,5 +1,44 @@
+From 33849a7fc3a948da2ddd6a96533e057583ef8e54 Mon Sep 17 00:00:00 2001
+From: Olivier Fourdan <ofourdan@redhat.com>
+Date: Tue, 31 Jul 2018 10:55:45 +0200
+Subject: [PATCH] Qt: Fix tooltip position
+MIME-Version: 1.0
+Content-Type: text/plain; charset=utf8
+Content-Transfer-Encoding: 8bit
+
+commit 5815534 ("qt: make the time tooltip a tooltip") reintroduced the
+bug fixed by previous commit ea99237 ("remove X11BypassWindowManagerHint
+from time tooltip") meant to fix #17829.
+
+The tooltip window is a shaped, override-redirect window which shows
+when the pointer enters the slider and disappears when it leaves the
+slider.
+
+By placing the tooltip window too low, above the slider, vlc causes a
+constant map/unmap of that window which will flood Xwayland and the
+Wayland compositori.window manager and can up with a deadlock situation.
+
+When the tooltip window is showing, the pointer will enter the tooltip
+window and thus leave the slider, which will cause the tooltip to be
+unmapped, which in turn causes the pointer to re-enter the slider area,
+which will cause the tooltip to show again, so on and so forth.
+
+On Wayland/Xwayland where the Wayland compositor (i.e. the display
+server) is also the window manager, that can lead to a deadlock
+situation because some X11 requests are blocking on rountrips to the
+Xserver, which in the case of Xwayland is also a Wayland client, waiting
+on the Wayland compositor for some operations, the Wayland compositor
+being also a Window manager and an X11 client at the same time...
+
+Avoid the issue by placing the tooltip so that it does not show up at
+the same location where the slider is, without overlap, to avoid that
+map/unmap requests storm.
+
 Closes: https://gitlab.gnome.org/GNOME/mutter/issues/244
-Signed-off-by: Olivier Fourdan <ofourdan at redhat.com>
+Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
+Signed-off-by: Hugo Beauzée-Luyssen <hugo@beauzee.fr>
+(cherry picked from commit 6579a36c56ed30b72de584bf0e8cf21af1a90cf7)
+Signed-off-by: Hugo Beauzée-Luyssen <hugo@beauzee.fr>
 ---
  modules/gui/qt/util/timetooltip.cpp | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
@@ -18,4 +57,6 @@ index 1314b520ea..7a63a9d7d9 100644
  
      // Keep the tooltip on the same screen if possible
 -- 
-2.17.1
+2.11.0
+
+