[Bug] QGC not showing external mode from PX4

[junwoo091400]

Expected Behavior

QGC should show the name of the external mode "CustomMode" (in this example) supported by PX4 via it's ROS2 Control interface. This feature was added in #10788.

Current Behavior

The mode name doesn't show up in flight modes supported.

Steps to Reproduce:

Please provide an unambiguous set of steps to reproduce the current behavior

1. Install QGC v4.4.2
2. Start PX4 SITL make px4_sitl_default gz_x500
3. Start MicroXRCE-DDS Agent MicroXRCEAgent udp4 -p 8888
4. Start ROS2 script ros2 run custom_mode custom_mode
5. Check QGC's listed supported modes

System Information

• OS: Ubuntu 22.04.3 LTS
• PX4: commit 8070c70
• ROS2 program from https://github.com/ARK-Electronics/px4_ros2_examples_ws?tab=readme-ov-file

Log Files and Screenshots

With the "StandardModes" for QGC Console log enabled, it didn't show anything. Only irrelevant errors:

[patrikpordi]

I face the same issue!

[DonLakeFlyer]

Can you try a daily build as well?

[patrikpordi]

It works on the daily build but based on the #10788 I assume it should work on the main as well? Do we misunderstand it?

[hamishwillee]

This should work by requesting AVAILABLE_MODES and then populating the UI appropriately. That message is in development.xml - does QGC import this for both main and daily builds?

I.e. first thing to check is that this message is being requested and recieved. Then check that the properties field does not have MAV_MODE_PROPERTY_NOT_USER_SELECTABLE set

@patrikpordi It only works on daily build, which imports development.xml, because that is the file that includes the required message definitions.