disable dbus-daemon; trace before/after XFCE &

ubuntu-desktop/start-desktop.sh

@@ -23,14 +23,14 @@ sleep 2
 echo "[start-desktop] After Xvfb sleep 2" >&2
 
 # Start dbus for session (optional; avoid exit on failure so noVNC can still serve)
-dbus-daemon --session 2>/dev/null || true
-echo "[start-desktop] After dbus" >&2
+# Disabled: can trigger set -e in some envs
+# dbus-daemon --session 2>/dev/null || true
+echo "[start-desktop] Before XFCE background" >&2
 
 # Start XFCE (lightweight); use full path in case PATH is minimal
-# Skip XFCE if DISPLAY not ready to avoid blocking; x11vnc will still show Xvfb
 (sleep 1; /usr/bin/startxfce4) &
 DESKTOP_PID=$!
-echo "[start-desktop] Before sleep 3" >&2
+echo "[start-desktop] After XFCE & before sleep 3" >&2
 sleep 3
 echo "[start-desktop] XFCE started, starting x11vnc ..." >&2