How many displays can AGX Orin MST support?

the datasheet about AGX Orin MST: Multiple displays can be supported over DP interface with MST.but when i use MST dock (support dp MST 1->3),only two displays can support,the ubuntu system can not open the third display…

It’s probably dual display only, I will check with internal team to give the update soon.

Currently, only 2x4K60 can be supported.