Fedora 38 not finding secondary monitor HDMI

[computersavvy (Jeff V)]

Possibly not really your problem. It may be related to see what is reported here with the workaround given. This problem only seems related to the full system upgrade between versions; especially if it has worked for some time but only reappeared when you did the version update…

Third-party modules (e.g. Nvidia) are not rebuilt during system upgrade

Problem If you use a third-party kernel module (the most common is the Nvidia closed driver, but this might also apply to some wireless card drivers, VirtualBox, etc), it won’t be rebuilt during a system upgrade to a newer Fedora version. That means your kernel module (and the affected hardware) might not work directly after the system upgrade. In case of Nvidia, that might mean using a slow fallback graphical driver, or even failing to boot to a graphical environment at all. Note: This proble…