Yes; trying to drive a refresh rate higher than what’s rated can do it-I think i... | Hacker News

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		linksnapzz on July 11, 2024 \| parent \| context \| favorite \| on: Iconography of the X Window System: The Boot Stipp... Yes; trying to drive a refresh rate higher than what’s rated can do it-I think it had something to do with the flyback transformer? Some (later) crts had guards against this, and ddc more ore less prevented it.

drivers99 on July 11, 2024 [–]

I was thinking too low of a frequency. Probably high or low can cause problems. I searched and found this: https://retrocomputing.stackexchange.com/questions/6614/can-...

"At the too low horizontal frequency, the period the switch is open becomes too long, that causes the following" [various bad things explained]

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