diff -Nru gst-plugins-bad1.0-1.12.2/debian/changelog gst-plugins-bad1.0-1.12.2/debian/changelog
--- gst-plugins-bad1.0-1.12.2/debian/changelog	2017-07-18 23:20:28.000000000 +0800
+++ gst-plugins-bad1.0-1.12.2/debian/changelog	2017-08-08 17:08:09.000000000 +0800
@@ -1,3 +1,12 @@
+gst-plugins-bad1.0 (1.12.2-1ubuntu2) UNRELEASED; urgency=medium
+
+  * Fix build failure: undefined reference to `eglGetDisplay'
+  * Prefer native Wayland over X11/Xwayland if both are available. This
+    fixes VA-API initialization failure in Gnome Shell Wayland sessions
+    (LP: #1698287).
+
+ -- Daniel van Vugt <daniel.van.vugt@canonical.com>  Tue, 08 Aug 2017 17:08:09 +0800
+
 gst-plugins-bad1.0 (1.12.2-1ubuntu1) artful; urgency=medium
 
   * Merge with Debian unstable; remaining changes:
diff -Nru gst-plugins-bad1.0-1.12.2/debian/patches/fix-egl.patch gst-plugins-bad1.0-1.12.2/debian/patches/fix-egl.patch
--- gst-plugins-bad1.0-1.12.2/debian/patches/fix-egl.patch	1970-01-01 08:00:00.000000000 +0800
+++ gst-plugins-bad1.0-1.12.2/debian/patches/fix-egl.patch	2017-08-08 17:08:09.000000000 +0800
@@ -0,0 +1,16 @@
+Description: Fix FTBFS "undefined reference to `eglGetDisplay'"
+ It only seems to fail locally for me, no history of the build failing in
+ production. But the fix is trivial...
+Author: Daniel van Vugt <daniel.van.vugt@canonical.com>
+Forwarded: no
+Last-Update: 2017-08-08
+--- a/ext/qt/Makefile.am	2017-05-15 23:46:30.000000000 +0800
++++ b/ext/qt/Makefile.am	2017-08-08 17:58:38.847311519 +0800
+@@ -44,6 +44,7 @@
+ 	$(GST_BASE_LIBS) \
+ 	$(GST_PLUGINS_BASE_LIBS) \
+ 	$(QT_LIBS) \
++	-lEGL \
+ 	$(top_builddir)/gst-libs/gst/gl/libgstgl-$(GST_API_VERSION).la \
+ 	-lgstvideo-$(GST_API_VERSION)
+ 
diff -Nru gst-plugins-bad1.0-1.12.2/debian/patches/fix-lp1698287.patch gst-plugins-bad1.0-1.12.2/debian/patches/fix-lp1698287.patch
--- gst-plugins-bad1.0-1.12.2/debian/patches/fix-lp1698287.patch	1970-01-01 08:00:00.000000000 +0800
+++ gst-plugins-bad1.0-1.12.2/debian/patches/fix-lp1698287.patch	2017-08-08 17:08:09.000000000 +0800
@@ -0,0 +1,42 @@
+Description: opengl: Prefer native Wayland over Xwayland
+ In the absence of any environment variable "GST_GL_WINDOW", the opengl
+ plugin would blindly try x11 before wayland. In a traditional X session,
+ or a basic Weston session this is unproblematic. However in Gnome Shell
+ a Wayland session also includes Xwayland, so both display server types
+ are available simultaneously.
+ .
+ Although Xwayland works fine for simple GLX tasks, it only supports DRI3.
+ LibVA on the other hand only supports DRI2. So VA-API would fail to
+ initialize in a Wayland Gnome Shell session because the desired DRI2
+ support is missing.
+ .
+ This simple fix just tries using wayland before x11 so that in a Gnome
+ Shell session we don't accidentally end up using Xwayland which breaks
+ video acceleration support (LP: #1698287). All other simpler single display
+ server scenarios remain unaffected. This fix only makes a difference in the
+ dual display server setup that is Xwayland (always on in Gnome Shell).
+Author: Daniel van Vugt <daniel.van.vugt@canonical.com>
+Bug-Ubuntu: https://bugs.launchpad.net/bugs/1698287
+Forwarded: no
+Last-Update: 2017-08-08
+--- a/gst-libs/gst/gl/gstgldisplay.c	2017-05-29 15:50:43.000000000 +0800
++++ b/gst-libs/gst/gl/gstgldisplay.c	2017-08-08 16:50:03.836031943 +0800
+@@ -292,14 +292,14 @@
+       return NULL;
+   }
+ #endif
+-#if GST_GL_HAVE_WINDOW_X11
+-  if (!display && (!user_choice || g_strstr_len (user_choice, 3, "x11")))
+-    display = GST_GL_DISPLAY (gst_gl_display_x11_new (NULL));
+-#endif
+ #if GST_GL_HAVE_WINDOW_WAYLAND
+   if (!display && (!user_choice || g_strstr_len (user_choice, 7, "wayland")))
+     display = GST_GL_DISPLAY (gst_gl_display_wayland_new (NULL));
+ #endif
++#if GST_GL_HAVE_WINDOW_X11
++  if (!display && (!user_choice || g_strstr_len (user_choice, 3, "x11")))
++    display = GST_GL_DISPLAY (gst_gl_display_x11_new (NULL));
++#endif
+ #if GST_GL_HAVE_WINDOW_VIV_FB
+   if (!display && (!user_choice || g_strstr_len (user_choice, 6, "viv-fb"))) {
+     const gchar *disp_idx_str = NULL;
diff -Nru gst-plugins-bad1.0-1.12.2/debian/patches/series gst-plugins-bad1.0-1.12.2/debian/patches/series
--- gst-plugins-bad1.0-1.12.2/debian/patches/series	2017-07-18 23:20:28.000000000 +0800
+++ gst-plugins-bad1.0-1.12.2/debian/patches/series	2017-08-08 17:08:09.000000000 +0800
@@ -1,2 +1,4 @@
 01_fix-modplug-linking.patch
 pcfile-requires-plugins-good
+fix-lp1698287.patch
+fix-egl.patch