Comment # 9 on bug 1209441 from Michael Vetter

(In reply to Stefan Dirsch from comment #6)
> Meanwhile we have a Lenovo P16 laptop available for testing in our team.

That's great to hear :)

> I suggest to use nvidia proprietary or opengpu driver instead of nouveau
> driver.
> All external outputs are connected to nVidia GPU.

I did that now as well. Thanks to your instruction on your blog!

The problem I have with this setup is that once I suspend it crashes.
Once I close the notebook lid (if it's not connected) it crashes.

And interesting enough:
When I boot I get until GDM, and the output is on the external monitor (as I
configured it).
But when I log in and it loads GNOME 3, then suddenly it uses the internal
display only. Then I plug it out of the docking station, and in again. And it
correctly uses the external display (as configured).