no HDMI (DP) Output over Dock

Hello, I can't connect any extern HDMI output over the Dock: The DP state is always between :

anx7688 1-0028: DP state changed to 0x00 anx7688 1-0028: DP state changed to 0x02 anx7688 1-0028: DP state changed to 0x03

$ wlr-randr DSI-1 "<Unknown> <Unknown> (DSI-1)" Physical size: 68x136 mm Enabled: no Modes: 720x1440 px, 60.006001 Hz (preferred)

is there anything possible to get HDMI/DP working / fix this Issue (I tried it with different Displays) in mobian (bullseye/bookworm)?

I tested it with Debian Bullseye (and today with an upgraded Bookworm) with a PINEPHONE – Beta Edition with Convergence Package Linux SmartPhone (3GB Ram).

Also with the pine Dock and other usb-c docking station with HDMI/DP output.

Thank you!