Unable to wake screen after switching monitor inputs for some time.

I've been able to get the Lock Screen to show sometimes, but It's incredibly temperamental! Most of the time, the monitor is flash firing source, source found over and over again.

What do I need to patch for it to work?

HP Elitedesk 800 g2 mini.

I followed this video to get the point I'm currently at - https://www.youtube.com/watch?v=DAgEyHCsVCc&t=1272s

submitted by /u/Quesabyte
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