Minibook X N5100 USB issue

Hello, My Minibook can’t read usb drive (using hub or directly connect) when other port connect to display port. any idea how to work both display output and usb drive for data ?
1st port can connect fine to power adapter when 2nd port to display, but 1st port can’t read usb drive while 2nd port connect to display hub.

Can you please share a video or picture of all the things you have connected so i can understand what is the issue¿