Hdmi issue for months on ubuntu

[erolhira]

I can not use an external monitor using ubuntu 22.04.

If i install windows on the notebook and install drivers, i can use external monitor.

But on ubuntu, i can't, tried lots of things for months and tried after all ubuntu update.
Tried different alternatives like using xorg, lightdm, wayland. disabled/enabled nvidia ms550. But i can't.
Can you please help ?

Why hp does not support for this? 

There are lots of unresolved hdmi issues reported on several forums. Hp should help on this if it sells free dos laptops. 

[erolhira]

It's clear that it was a mistake to buy an hp for a linux user.

I bought it with confidence in the brand but no response for this basic hdmi usage issue.

I couldn't imagine that they can sell free-dos machines without support.