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Comment by cinntaile | Hacker News Reader

Off topic but this post will attract Kinesis users... Does anyone know how to deal with ghosting on the Kinesis Advantage?I bought a used one but quite often it repeats the letters that I press and that's not how it's supposed to work. I haven't used it in years but it would be interesting to fix it. I know it's possible to change the controller, but how do I know if that is the issue?

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If you have an original Advantage, IIRC that was one of the known issues that got fixed in the Advantage2 (or perhaps one of the Advantage2 firmware updates). I'm having trouble finding a source now, but Kinesis' site does state:

> "The firmware of the original Advantage was developed prior to the advent of modern operating systems and USB 3.0. As a result, it is not uncommon for original Advantage keyboards to become unreliable when used on newer PCs and operating systems as they were not designed with these protocols in mind." [0]

[0] https://kinesis-ergo.com/support/advantage/

Do you mean 'chattering'? Double presses can happen with electrical contact mechanism switches, particularly if they are old or dirty.

If I press 'f' it can come out as 'ffffff'. They're not dirty, but they're probably 10-15 years old. I assume this is much harder to fix than changing the keyboard controller.

You can try increasing the debounce time to paper over this issue. Requires using a replacement controller like https://github.com/kinx-project/kint/ of course :)

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