Elitebook 2560p - docking station problem with audio

Hello,

I have a problem with docking station for Elitebook 2560p.

Mini-jack port is not working in docking station but it works in notebook.

When I plug the cable from simple 2.0 speakers in audio port from notebook (PC is plugged into docking station) it works. But when I'm switching cable to port from docking station it's not working.

I thought that regular audio port (in notebook) should be disabled when notebook is plugged in docking station.

I saw only drivers for USB port for docking station. I could not find drivers for audio port of docking station.

Please advise how to make it work.

Best regards,

Patryk