I assume this is QMK, because changing the settings clears or introduces the issue. I’m using Vial for the programming/configuration.
I have a key configured tap-dance, like many others: - on tap, and ctrl on hold. The issue is that most of the time when I type something like -p, I get only the -. Then, the next time I type p, I get 2 of them. So something like this will happen:
I type foo -p bar baz, but don’t notice the p is missing until after baz, cursor left and type p again, and end up with -pp
Most of my keys are tap-dance of some pattern: <char> on tap, layer shift in hold, <char> on tap-hold. I’ve noticed this buffered character after - on other characters; it isn’t just p. Changing the timeout does affect the frequency, but doesn’t entirely eliminate it. I haven’t noticed it on any other combo, although they’re all of the same pattern; it seems to be only happening with the -/ctrl tap-dance. Removing the multitap on - eliminates the issue.
This is my first QMK. I’d been using an Ergodox for years, and kmonad on my laptop for a year or so, although I recently switched to kanata (fantastic piece of software, incidentally), so I’m more or less familiar with the world of layers, multi-tap/tap-dance, combos, and so on. This one has me stumped, though.
I’ve checked and there’s no combo defined that involves dash. I’ve never created a QMK macro, but it occurs to me that I didn’t check if there are any defined.
Does anyone have a suggestion of how I can debug this? Could there be some bug, some bit that I accidentally set, that’s causing this? Is there some QMK feature that does exactly this thing, and I’ve somehow enabled it? I’ve power cycled the keyboard, although I haven’t yet tried a hard or factory reset.
Any ideas would be appreciated!
Edit corrected “multi-tap” to “tap-dance”, as QMK calls it the one thing and not t’other
I tend to use tap-dance for modifiers, like my thumb Esc is also Alt, because one I tap (and never hold) and the other I always hold (and has no use taped). Having (e.g.) a key only dedicated to Alt is a wasted key; Alt isn’t a good key to have on a layer; and it would be not only annoying to have to tap a layer switch key to get to Alt, and even then there’d be a chording issue where you still need to have access to all your keys and Alt so you can type chords like Ctrl-Alt-X.
How do you manage the four(-ish) modifier keys without tap-dance, or having dedicated, single-purpose keys for them? On a 36, that’s 11% of the keyboard dedicated to modifiers (Ctrl, Shift, Meta, Alt) at best, or 19% if you make use of the fact that there are left/right distinctions for three of those keys (is there a Right Meta?).
Honestly, I’d be happy with a different solution. Modifier keys are hard enough; I still have trouble with accuracy with only three thumb keys. I had an ErgoDox for years and never really used all twelve of the thumb keys; it was just too hard to reliable hit that inner column.
For that matter, how do you do layer switches without tap dance, or dedicated keys? Are you using momentary layers, or layer switch? Are they dedicated layer keys, and if so, where are your modifiers keys and things like space/return? Can you post your config so I can load it in Vial and look at it?