XF86TouchpadToggle media key is not consistently detected

[gdeoliveira]

• Sway Version:

  • sway version 1.10

• Debug Log:

  • https://gist.github.com/gdeoliveira/eae8aa3b0658120f0b733dc8cbb5b206

• Configuration File:

  • Default configuration file with the following line added at the end:

bindsym XF86TouchpadToggle input type:touchpad events toggle enabled disabled

• Description:
  Unlike all the other media keys I have set up in my configuration file, the XF86TouchpadToggle key presses are being ignored for what seems like an arbitrary number of presses. These can go from just a couple of key presses until the desired action is executed to well over 10 key presses. The problem is also present when binding the key by keycode.
  I know that the physical key is working correctly because wev is consistently picking it up, although it seems to have quite a bit of extra output for it compared to most of my other media keys:

[08:         wl_seat] name: seat0
[08:         wl_seat] capabilities: pointer keyboard 
[10:    xdg_toplevel] configure: width: 0; height: 0
[09:     xdg_surface] configure: serial: 1751
[14:     wl_keyboard] keymap: format: 1 (xkb v1), size: 66784
[14:     wl_keyboard] repeat_info: rate: 25 keys/sec; delay: 600 ms
[14:     wl_keyboard] enter: serial: 1755; surface: 3
'                     sym: Return       (65293), utf8: '
[14:     wl_keyboard] modifiers: serial: 0; group: 16
                      depressed: 00000000
                      latched: 00000000
                      locked: 00000010: Mod2 
[11:  wl_data_device] selection: (cleared)
[10:    xdg_toplevel] configure: width: 636; height: 1030
                      activated tiled-left tiled-right tiled-top tiled-bottom 
[09:     xdg_surface] configure: serial: 1752
[14:     wl_keyboard] key: serial: 1758; time: 2197732; key: 36; state: 0 (released)
                      sym: Return       (65293), utf8: ''
[14:     wl_keyboard] key: serial: 1759; time: 2202168; key: 37; state: 1 (pressed)
                      sym: Control_L    (65507), utf8: ''
[14:     wl_keyboard] modifiers: serial: 0; group: 16
                      depressed: 00000004: Control 
                      latched: 00000000
                      locked: 00000010: Mod2 
[14:     wl_keyboard] key: serial: 1761; time: 2202170; key: 199; state: 1 (pressed)
                      sym: XF86TouchpadToggle (269025193), utf8: ''
[14:     wl_keyboard] key: serial: 1762; time: 2202170; key: 199; state: 0 (released)
                      sym: XF86TouchpadToggle (269025193), utf8: ''
[14:     wl_keyboard] key: serial: 1763; time: 2202173; key: 133; state: 1 (pressed)
                      sym: Super_L      (65515), utf8: ''
[14:     wl_keyboard] modifiers: serial: 0; group: 16
                      depressed: 00000044: Control Mod4 
                      latched: 00000000
                      locked: 00000010: Mod2 
[14:     wl_keyboard] key: serial: 1765; time: 2202175; key: 93; state: 1 (pressed)
                      sym: NoSymbol     (0), utf8: ''
[14:     wl_keyboard] key: serial: 1766; time: 2202181; key: 93; state: 0 (released)
                      sym: NoSymbol     (0), utf8: ''
[14:     wl_keyboard] key: serial: 1767; time: 2202188; key: 133; state: 0 (released)
                      sym: Super_L      (65515), utf8: ''
[14:     wl_keyboard] modifiers: serial: 0; group: 16
                      depressed: 00000004: Control 
                      latched: 00000000
                      locked: 00000010: Mod2 
[14:     wl_keyboard] key: serial: 1769; time: 2202194; key: 37; state: 0 (released)
                      sym: Control_L    (65507), utf8: ''
[14:     wl_keyboard] modifiers: serial: 0; group: 16
                      depressed: 00000000
                      latched: 00000000
                      locked: 00000010: Mod2

Something that might (or might not) be of interest is that while trying to generate Sway's logfile for this issue each press of XF86TouchpadToggle generated a ^@ on the TTY. While attempting to turn off and then back on the touchpad (which took a total amount of 14 XF86TouchpadToggle key presses instead of the expected 2) this is how my terminal looked:

[gdeoliveira@beta Documents]$ sway -d 2> log-XF86TouchpadToggle.txt
^@^@^@^@^@^@^@^@^@^@^@^@^@^@[gdeoliveira@beta Documents]$