Updated Fedora (25) over the weekend to kernel 4.11.12-200 and my hdmi port stopped working.
The monitor detects when it's plugged and unplugged so I assume the port is sending something.... just no signal and the Gnome settings only see the built-in display.
Checked the monitor and cable with another computer and works fine.
I figure it was a driver issue? However, beyond that... looking for suggestions.

Thanks.

Dan.