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.