Latitude 5531 + Ubuntu Linux 22.04 external monitor problem

Hello everyone - does anyone use Latitude 5531 and Ubuntu 22.04? I installed the Ubuntu and everything works fine except the external monitor. No matter how I connect it (hdmi, thunderbolt directory or using docking station), there's "no signal" on the external monitor. I have newest BIOS, newest GPU drivers. Any ideas how to fix it? Thanks in advance.