Debugging repeated key presses on MacOS

[das-monki]

I'm quite frequently getting repeated keypresses on MacOS, and I'd like to understand what is triggering it. (And if I can solve it by changing my config..)

In this case I got a duplicate t when typing :data -> :datta, the logs are below. (I'm also frequently getting more than two key repeats though.)

Any help in deciphering the logs would be greatly appreciated, for example what is happening on kanata level and OS level and where the additional key is coming from.

FYI, I'm using homerow-mods, but the key repeats happen also on other keys and when not using homerow mods prior to the keypress.

11:10:21.4460 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_CAPSLOCK (58), value: Release } to processing loop
11:10:21.4460 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:21.4461 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:21.4462 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_CAPSLOCK (58), value: Release }
11:10:21.4463 [INFO] Entered layer:

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  esc  brdn brup mdia _    _    _    prev pp   next mute vold volu
  grv  1    2    3    4    5    6    7    8    9    0    -    =    bspc
  @nav q    w    e    r    t    y    u    i    o    p    ret  ]    ret
  @sym @a   @s   @d   @f   g    h    @j   @k   @l   @;   @num \
  @lsm 102d z    x    c    v    b    n    m    ,    .    /    rsft up
  fn   lctl lalt lmet           spc            rmet ralt left down rght
)
11:10:23.4455 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 7, page: 7, code: 4294967295 } is unrecognized!
11:10:23.4458 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 7, page: 7, code: 4294967295 } DKEvent { value: 7, page: 7, code: 4294967295 }
11:10:23.4458 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:23.4459 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:23.4460 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_D (32), value: Press } to processing loop
11:10:23.4460 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 7, page: 7, code: 4294967295 } is unrecognized!
11:10:23.4460 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 7, page: 7, code: 4294967295 } DKEvent { value: 7, page: 7, code: 4294967295 }
11:10:23.4461 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_D (32), value: Press }
11:10:23.5255 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 51, page: 7, code: 4294967295 } is unrecognized!
11:10:23.5257 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 51, page: 7, code: 4294967295 } DKEvent { value: 51, page: 7, code: 4294967295 }
11:10:23.5258 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:23.5258 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:23.5259 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_SEMICOLON (39), value: Press } to processing loop
11:10:23.5259 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 13063, page: 7, code: 4294967295 } is unrecognized!
11:10:23.5259 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 13063, page: 7, code: 4294967295 } DKEvent { value: 13063, page: 7, code: 4294967295 }
11:10:23.5283 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_SEMICOLON (39), value: Press }
11:10:23.5856 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:23.5857 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:23.5858 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:23.5858 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:23.5858 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_SEMICOLON (39), value: Release } to processing loop
11:10:23.5859 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 7, page: 7, code: 4294967295 } is unrecognized!
11:10:23.5859 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 7, page: 7, code: 4294967295 } DKEvent { value: 7, page: 7, code: 4294967295 }
11:10:23.5859 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_SEMICOLON (39), value: Release }
11:10:23.5859 [DEBUG] (2) kanata_state_machine::kanata: key press     LShift
11:10:23.5859 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 1, page: 7, code: 225 } DKEvent { value: 1, page: 7, code: 225 }
11:10:23.5920 [DEBUG] (2) kanata_state_machine::kanata: key press     SColon
11:10:23.5939 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 1, page: 7, code: 51 } DKEvent { value: 1, page: 7, code: 51 }
11:10:23.5982 [DEBUG] (2) kanata_state_machine::kanata: key release   SColon
11:10:23.5983 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 51 } DKEvent { value: 0, page: 7, code: 51 }
11:10:23.6654 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:23.6655 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:23.6656 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:23.6656 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:23.6657 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_D (32), value: Release } to processing loop
11:10:23.6657 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:23.6657 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:23.6676 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_D (32), value: Release }
11:10:23.6677 [DEBUG] (2) kanata_state_machine::kanata: key release   LShift
11:10:23.6678 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 225 } DKEvent { value: 0, page: 7, code: 225 }
11:10:23.8723 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 7, page: 7, code: 4294967295 } is unrecognized!
11:10:23.8725 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 7, page: 7, code: 4294967295 } DKEvent { value: 7, page: 7, code: 4294967295 }
11:10:23.8725 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:23.8725 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:23.8726 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_D (32), value: Press } to processing loop
11:10:23.8726 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 7, page: 7, code: 4294967295 } is unrecognized!
11:10:23.8727 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 7, page: 7, code: 4294967295 } DKEvent { value: 7, page: 7, code: 4294967295 }
11:10:23.8728 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_D (32), value: Press }
11:10:23.9472 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:23.9473 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:23.9474 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:23.9474 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:23.9474 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_D (32), value: Release } to processing loop
11:10:23.9475 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:23.9475 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:23.9494 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_D (32), value: Release }
11:10:23.9495 [DEBUG] (2) kanata_state_machine::kanata: key press     D
11:10:23.9495 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 1, page: 7, code: 7 } DKEvent { value: 1, page: 7, code: 7 }
11:10:23.9546 [DEBUG] (2) kanata_state_machine::kanata: key release   D
11:10:23.9547 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 7 } DKEvent { value: 0, page: 7, code: 7 }
11:10:24.0868 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 4, page: 7, code: 4294967295 } is unrecognized!
11:10:24.0871 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 4, page: 7, code: 4294967295 } DKEvent { value: 4, page: 7, code: 4294967295 }
11:10:24.0871 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:24.0871 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:24.0872 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_A (30), value: Press } to processing loop
11:10:24.0872 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 4, page: 7, code: 4294967295 } is unrecognized!
11:10:24.0873 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 4, page: 7, code: 4294967295 } DKEvent { value: 4, page: 7, code: 4294967295 }
11:10:24.0873 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_A (30), value: Press }
11:10:24.1144 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:24.1145 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:24.1146 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:24.1146 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:24.1147 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_A (30), value: Release } to processing loop
11:10:24.1147 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:24.1147 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:24.1154 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_A (30), value: Release }
11:10:24.1154 [DEBUG] (2) kanata_state_machine::kanata: key press     A
11:10:24.1155 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 1, page: 7, code: 4 } DKEvent { value: 1, page: 7, code: 4 }
11:10:24.1205 [DEBUG] (2) kanata_state_machine::kanata: key release   A
11:10:24.1206 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4 } DKEvent { value: 0, page: 7, code: 4 }
11:10:24.1775 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 23, page: 7, code: 4294967295 } is unrecognized!
11:10:24.1779 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 23, page: 7, code: 4294967295 } DKEvent { value: 23, page: 7, code: 4294967295 }
11:10:24.1779 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:24.1779 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:24.1780 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_T (20), value: Press } to processing loop
11:10:24.1780 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 23, page: 7, code: 4294967295 } is unrecognized!
11:10:24.1780 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 23, page: 7, code: 4294967295 } DKEvent { value: 23, page: 7, code: 4294967295 }
11:10:24.1787 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_T (20), value: Press }
11:10:24.1787 [DEBUG] (2) kanata_state_machine::kanata: key press     T
11:10:24.1787 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 1, page: 7, code: 23 } DKEvent { value: 1, page: 7, code: 23 }
11:10:24.2734 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 4, page: 7, code: 4294967295 } is unrecognized!
11:10:24.2735 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 4, page: 7, code: 4294967295 } DKEvent { value: 4, page: 7, code: 4294967295 }
11:10:24.2736 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:24.2736 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:24.2736 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_A (30), value: Press } to processing loop
11:10:24.2737 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 1047, page: 7, code: 4294967295 } is unrecognized!
11:10:24.2737 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_A (30), value: Press }
11:10:24.2737 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 1047, page: 7, code: 4294967295 } DKEvent { value: 1047, page: 7, code: 4294967295 }
11:10:24.2894 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 4, page: 7, code: 4294967295 } is unrecognized!
11:10:24.2895 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 4, page: 7, code: 4294967295 } DKEvent { value: 4, page: 7, code: 4294967295 }
11:10:24.2895 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:24.2895 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:24.2895 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:24.2896 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:24.2896 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_T (20), value: Release } to processing loop
11:10:24.2896 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 4, page: 7, code: 4294967295 } is unrecognized!
11:10:24.2896 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 4, page: 7, code: 4294967295 } DKEvent { value: 4, page: 7, code: 4294967295 }
11:10:24.2917 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_T (20), value: Release }
11:10:24.3579 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:24.3580 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:24.3580 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 1 } is unrecognized!
11:10:24.3580 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 1 } DKEvent { value: 0, page: 7, code: 1 }
11:10:24.3580 [DEBUG] (1) kanata_state_machine::kanata::macos: sending KeyEvent { code: KEY_A (30), value: Release } to processing loop
11:10:24.3581 [DEBUG] (1) kanata_state_machine::kanata::macos: InputEvent { value: 0, page: 7, code: 4294967295 } is unrecognized!
11:10:24.3581 [DEBUG] (1) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4294967295 } DKEvent { value: 0, page: 7, code: 4294967295 }
11:10:24.3588 [DEBUG] (2) kanata_state_machine::kanata: process recv ev KeyEvent { code: KEY_A (30), value: Release }
11:10:24.3588 [DEBUG] (2) kanata_state_machine::kanata: key press     A
11:10:24.3588 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 1, page: 7, code: 4 } DKEvent { value: 1, page: 7, code: 4 }
11:10:24.3644 [DEBUG] (2) kanata_state_machine::kanata: key release   T
11:10:24.3646 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 23 } DKEvent { value: 0, page: 7, code: 23 }
11:10:24.3646 [DEBUG] (2) kanata_state_machine::kanata: key release   A
11:10:24.3646 [DEBUG] (2) kanata_state_machine::oskbd::macos: Attempting to write InputEvent { value: 0, page: 7, code: 4 } DKEvent { value: 0, page: 7, code: 4 }

[jtroo]

Kanata itself isn't sending any repeat events; the tap-hold key pressed as the key following T, in this case A, is the source of the issue.

You can either increase your autorepeat delay configuration, learn to release the tap-hold key quicker, or try a workaround:

#422