diff -r 1402d5c0e27e -r c17155fd8573 tests/tools/Docker/beremiz-sikuli/create_docker_container.sh
--- a/tests/tools/Docker/beremiz-sikuli/create_docker_container.sh	Mon Feb 28 21:29:46 2022 +0100
+++ b/tests/tools/Docker/beremiz-sikuli/create_docker_container.sh	Mon Feb 28 21:46:37 2022 +0100
@@ -14,11 +14,10 @@
 UNAME=testing
 UHOME=/home/$UNAME
 
-# define TESTDEBUG in env to enable dev-mode debug pasthrough Xnest
-DEBUGARGS="-v /tmp/.X11-unix/X0:/tmp/.X11-unix/X0 -e DISPLAY=$DISPLAY"
-
-# In case VNC with x11vnc is prefered, then a port should be passed like this
-# DEBUGARGS="-p 5900:5900"
+# define TESTDEBUG in env to enable dev-mode. This enables :
+#   - debug pasthrough for Xnest
+#   - VNC port passthrough
+DEBUGARGS="-v /tmp/.X11-unix/X0:/tmp/.X11-unix/X0 -e DISPLAY=$DISPLAY -p 5900:5900"
 
 echo "Creating docker container"
 docker create \