System related keyboard glitch

TidBITS Talk
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The weirdest thing has started to happen with my keyboard. Or the system. I’m not sure which.

Certain keys have started to fail, for a few minutes or longer. First it was the S key, then the R key, and then one other. Right now, it’s the H key. (I’m dictating this.) Cleaning or resetting the key, stuff that usually works doesn’t seem to work. Re-booting usually works. (v 15.4 and 15.4.1) Another weird thing is that it’ll stop working in one app but still work in another. For example it’ll stop in Scrivener but still work in Notes or vice versa.

It’s a wired, mechanical keyboard, a Matias Tactile Pro, but it also occurs on the MacBook Pro keyboard.

Has anyone ever heard of this? What could be going on?

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What happens when you try it in a fresh user account? If the problem occurs there, it points to a hardware failure somewhere in the USB chain. If not, there’s something wonky with software.

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Google leads to If your Mac doesn’t respond to key presses - Apple Support

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My keyboard glitch seems to be solved. I ended up reinstalling the system.

Thank you for your comments, Adam and Michael.