missing debian dependencies

CI/install_debian_deps.sh

@@ -21,7 +21,8 @@ declare -rA GROUPED_DEPS=(
     
     libavcodec-dev libavformat-dev libavutil-dev libswscale-dev libswresample-dev
     libsdl2-dev libqt5opengl5-dev libopenal-dev libunshield-dev libtinyxml-dev
-    libbullet-dev liblz4-dev libpng-dev libjpeg-dev
+    libbullet-dev liblz4-dev libpng-dev libjpeg-dev 
+	libxcb-glx0-dev libx11-dev
   "
 
   # These dependencies can alternatively be built and linked statically.