Some Key Presses repeat themselves indefinetly

uConsole
1

It happend mostly with “space bar”, but sometimes when i’m writing, if i press “space”, the time before i press the next key, my cursor will move forward like if i’m maintaining the key press. It happened also with the right arrow once while i was testing a pico-8 game, but mostly it happend when i’m writing in the terminal.

My keyboard seems to be fine, the space bar is very responsive, when i let the key down, i hear the “click”, everytimes, even when this issue happend.

So i wonder if this is hardware issue or software issue, and of course, i would like to find a fix. Anyone with the same problem ?

PS: i used the SD card sent with my uConsole, had this issue, than i used another image of the OS, found in the official GitHub repository… same issue. I used the keyboard Firmware, same issue.

2

…I vote software. The repeating keys happen even with USB keyboards.

3

It often happen on the first time i press space after booting, but it can also happen while playing a game in pico-8 after few hours of wake.

I also know about the bluetooth repeating keys problem, but here it’s a wired connection, so i don’t see how this is normal to happen.

4

Sometimes I run heavy stuff in the background, and I type faster than the OS can seemingly catch up. And that’s when I get the repeating keys.

5

I have the same issue. I think, in my case there are two different problems:
— sticky spacebar (spacebar start repeating until I press and release it again)
— random issues with other keys (like double input because of wrong debounce interval)

There is a tendency for the spacebar to stick after the keyboard has been idle for some time.

I logged keyboard events and it looks like the key doesn’t trigger a keyup event sometimes. I can’t reliably reproduce this yet.

I second software. But have no idea where to start debugging.
It happened both with stock Raspbian and Debian 12.

6

@Rex hey, does QMK also solves this issue?

I think I saw somewhere that yes, but can’t find so I can also hallucinate.

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7

It solved this issue for me. The space key would repeat all the time, other keys did but not as much. the QMK firmware pretty much fixed it. it happens seldom now.

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