SOLVED weird boot, graphics, monitors

[adhefe]

Last news after updating kernel, nvidia, and other packages today: when rebooting, and ony then, the second monitor exhibits the mageia splash screen. No luck yet for normal use however.

[adhefe]

And adding to the list of weird happenings, I've read in another topic that installing plasma-workspace-wayland I would have the choice to login in plasma(wayland) but I still have only plasma(X11) to choose.

[adhefe]

Problem with second monitor solved...
After last update (kernel-desktop-6.6.52-1.mga9.x86_64, etc), the second monitor showed up during powering off as I've already reported.

There has been another update today (libreoffice packages + others).

I've edit xorg.conf and change nouveau to nvidia as the driver and now I have the second monitor back for normal usage.

What is the causal relationship of this changes to the availability of the second monitor? I have no idea.

And, finally, believe it or not,
jounalctl -ab
no longer shows any unrecoverable error in /dev/sda!

[doktor5000]

Please don't forget to mark the thread as solved, by editing the subject of the first post and prefix it with [SOLVED], thanks in advance.