Add option to cache last video frame when HDMI drops #1160
Description
A note for the community
Note
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Disclaimer
- I have read and understood the disclaimer.
- I plan to implement the feature myself.
Subsystem
{"UI" => "Screen"}
Feature description
This could be quite handy to debug a crashed computer, if we can see what the last frame was before signal was lost.
My JetKVM is connected to a server that is constantly running, and with the virtual video signal set to not sleep.
If the server hard crashes, it would be nice to see what the last video frame was, e.g. if it was displaying a kernel panic. (It would also fill in the gaps between signal loss while booting the server, although that could be confusing if it didn't say "connection lost" somewhere on that frame)