Hardware KVM, force display enabled?

Is it typical for a Linux system to boot up headless when it is not the current input to the KVM, and to not discover/enable displays when (the next morning) we switch to it on the KVM?

If so, is there a way to force it?

I remotely updated and rebooted last night, and had to force reboot the system after switching to it on the KVM, in order to get displays working.
Was this page helpful?