WayVNC ignores --output parameter when multiple displays are present

[Voss0001]

Useful information:

Please, try to gather as much of useful information as possible and follow
these instructions:

• Version:
  wayvnc: 0.9-dev
  neatvnc: 0.9-dev
  aml: 0.3.0

• Provide context, including but not limited to
  cat /usr/sbin/wayvnc-run.sh
  #!/bin/sh

. /etc/default/keyboard

export XDG_RUNTIME_DIR=/tmp/wayvnc
mkdir -p "$XDG_RUNTIME_DIR"

export XKB_DEFAULT_MODEL="$XKBMODEL"
export XKB_DEFAULT_LAYOUT="$XKBLAYOUT"

SELF_PID=$$

{
while ! wayvncctl --socket=/tmp/wayvnc/wayvncctl.sock version >/dev/null 2>&1; do
sleep 0.1
done
systemd-notify --ready --pid=$SELF_PID
} &

if raspi-config nonint is_pifive ; then
wayvnc --render-cursor
--detached
--output=HDMI-A-1
--config /etc/wayvnc/config
--socket /tmp/wayvnc/wayvncctl.sock
else
wayvnc --render-cursor
--detached
--gpu
--output=HDMI-A-1
--config /etc/wayvnc/config
--socket /tmp/wayvnc/wayvncctl.sock
fi

• Command line arguments

• Special environment variables, if any

• Which wayland compositor are you using? Which version?

• What VNC client are you using?

• RealVNC, TightVNC

• Did you configure your VNC client in a specific manner?
  no just as above.

• Linux distro/operating system
  PiOS current rev

• Describe how to reproduce the problem
  Description: WayVNC does not respect the --output parameter when multiple Wayland outputs are available. It always defaults to the external monitor (HDMI-A-2) regardless of the specified output parameter.
  Steps to Reproduce:

1. Connect two displays: touchscreen (HDMI-A-1, 800x480) and external monitor (HDMI-A-2, 1920x1080)
2. Start WayVNC with --output=HDMI-A-1 parameter
3. Connect via VNC client
   Expected Behavior: VNC should connect to the specified screen (HDMI-A-1)
   Actual Behavior: VNC connects to external monitor (HDMI-A-2), ignoring the --output=HDMI-A-1 parameter
   Workaround: Disconnecting the external monitor while VNC session is active causes WayVNC to switch to the touchscreen and log "Selected output HDMI-A-2 went away". Subsequent connections then work correctly on the touchscreen.

This is on a Pi5 4GB

[any1]

That doesn't work for detached mode. There is a TODO in the code for it.

You can also set an output using wayvncctl --socket /tmp/wayvnc/wayvncctl.sock set-output HDMI-A-1