executed "dnf update" after about 15 days of inactivity.

Updates has brought in kernel 5.2.8-200.fc30.x86_64

But after reboot the system is not able to detect (in the sense of no monitor connection at all seen) when connecting a 24" Dell monitor using an usb-c to hdmi adapter on my laptop and then connecting an HDMI-to-dvi cable to the monitor, that I normally used before.

Tried to reboot two times without effect.

As soon as I restart with previous kernel 5.1.20-300.fc30.x86_64, external monitor detection and usage is ok again.

This is in default Gnome environment and Wayland.

Eg in gnome terminal I have:

$ loginctl show-session 2 -p Type
Type=wayland

and

$ echo $WAYLAND_DISPLAY
wayland-0

Anyone else with similar problems?

If you point me on how to get related log lines in journal in both working and not working configurations, I can get more info.

Seen on several threads that with Xwayland and gnome-shell not so easy to see startup log files...

Thanks in advance,

Gianluca