Bluetooth connects only when login through HDMI display in Jetson TX2 NX

I was working on Jetson TX2 NX and using rtl8822ce chip for BT and connecting through USB interface.
When I am trying to connect with a bluetooth headset, it connects and disconnects immediately. But when I connect the board to monitor using HDMI and right after login, bluetooth connection maintain without disconnecting.
Also, when I just connect to HDMI and checked, the problem is there, but after login using HDMI, bluetooth works perfectly.

What may be the reason?

What does that mean you need to “login”? The user login GUI over the monitor?

Yes. Exactly.
The user login GUI over the monitor.

I have no direct answer for that. Maybe you can compare the syslog between working and NG case.

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