fix: improve web runtime resolution and restore x11vnc ncache

kiosk/entrypoint.sh

@@ -4,7 +4,7 @@ set -euo pipefail
 TARGET_URL="${TARGET_URL:-https://example.com}"
 SESSION_ID="${SESSION_ID:-unknown}"
 IDLE_TIMEOUT="${IDLE_TIMEOUT:-1800}"
-X11VNC_FLAGS="${X11VNC_FLAGS:--wait 5 -defer 5 -ncache 10 -ncache_cr -threads}"
+X11VNC_FLAGS="${X11VNC_FLAGS:--wait 5 -defer 5 -ncache 10 -threads}"
 ENABLE_HEARTBEAT="${ENABLE_HEARTBEAT:-1}"
 TOUCH_PATH="${TOUCH_PATH:-/api/sessions/${SESSION_ID}/touch}"
 UNIVERSAL_WEB="${UNIVERSAL_WEB:-0}"
@@ -183,6 +183,22 @@ else
     >/tmp/chromium.log 2>&1 &
 fi
 
-x11vnc -display :1 -rfbport 5900 -forever -shared -nopw -noxdamage $X11VNC_FLAGS >/tmp/x11vnc.log 2>&1 &
+start_x11vnc_with_retry() {
+  local display_arg="$1"
+  local attempt=0
+  while [ "$attempt" -lt 12 ]; do
+    x11vnc -display "$display_arg" -rfbport 5900 -forever -shared -nopw -noxdamage $X11VNC_FLAGS >/tmp/x11vnc.log 2>&1 &
+    local pid=$!
+    sleep 1
+    if kill -0 "$pid" 2>/dev/null; then
+      return 0
+    fi
+    attempt=$((attempt + 1))
+    sleep 0.5
+  done
+  return 1
+}
+
+start_x11vnc_with_retry ":1" || true
 
 exec websockify --verbose --idle-timeout="$IDLE_TIMEOUT" --web=/opt/portal 6080 localhost:5900