this post was submitted on 23 Jul 2024
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219
Ancient CRT monitor hits astonishing 700Hz — resolution reduced to just 120p to reach extraordinary refresh rate (www.tomshardware.com)
submitted 3 months ago by [email protected] to c/technology
23 comments fedilink hide all child comments
 

cross-posted from: https://lemmy.ml/post/18305395

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[–] [email protected] 3 points 3 months ago (1 children)

Yeah I didn't think it would make the "pixels" smaller, but the beam would need to pulse less often and therefore could travel more. Maybe I'm misunderstanding what they did.

[–] [email protected] 11 points 3 months ago (1 children)

Electron beams scan insanely fast, that isn’t the limiting factor. Getting that much bandwidth across a VGA cable is tough. If you wanted super high refresh rates on old CRTs you’d have to drop the resolution. Same concept.

[–] [email protected] 8 points 3 months ago (1 children)

Ah. I see, so reducing the resolution was more about sending frames to the monitor faster, not about optimizing the tube hardware's behaviour

[–] [email protected] 3 points 3 months ago* (last edited 3 months ago)

Yeah basically you can only signal "on-off" so many times a second in a vga cable before the ons and offs get blurry and unusable. So you can trade lower resolution for a higher frame rate as long as you keep the total number of on-offs below the limits.