Cannot use ctrl + / in alacritty on Windows

[airtonix]

Pressing Ctrl + / does nothing.

For whatever it's worth: Pressing Ctrl + v pastes whatever is in the clipboard.

So i can't bind C-_ for commenting/uncommenting in neovim.

System

OS: Windows 11
Version: alacritty 0.11.0 (d23330a)
Shell: PowerShell 7.3.1

Logs

Crashes: STDERR, STDOUT
Font/Terminal size: alacritty -vv
Keyboard and bindings: alacritty --print-events

[37.859271800s] [INFO ] [alacritty] glutin event: MainEventsCleared
[37.859429400s] [INFO ] [alacritty] glutin event: RedrawEventsCleared
[37.978542200s] [INFO ] [alacritty] glutin event: NewEvents(WaitCancelled { start: Instant { t: 209698.4448825s }, requested_resume: None })
[37.978888300s] [INFO ] [alacritty] glutin event: WindowEvent { window_id: WindowId(WindowId(2099080)), event: KeyboardInput { device_id: DeviceId(DeviceId(0)), input: KeyboardInput { scancode: 53, state: Released, virtual_keycode: Some(Slash), modifiers: CTRL }, is_synthetic: false } }
[37.979271300s] [INFO ] [alacritty] glutin event: MainEventsCleared
[37.979413400s] [INFO ] [alacritty] glutin event: RedrawEventsCleared
[38.234473100s] [INFO ] [alacritty] glutin event: NewEvents(WaitCancelled { start: Instant { t: 209698.5649091s }, requested_resume: None })
[38.234748400s] [INFO ] [alacritty] glutin event: WindowEvent { window_id: WindowId(WindowId(2099080)), event: KeyboardInput { device_id: DeviceId(DeviceId(0)), input: KeyboardInput { scancode: 53, state: Pressed, virtual_keycode: Some(Slash), modifiers: CTRL }, is_synthetic: false } }
[38.235074700s] [INFO ] [alacritty] glutin event: MainEventsCleared
[38.235285500s] [INFO ] [alacritty] glutin event: RedrawEventsCleared
[38.347000700s] [INFO ] [alacritty] glutin event: NewEvents(WaitCancelled { start: Instant { t: 209698.8207637s }, requested_resume: None })
[38.347350500s] [INFO ] [alacritty] glutin event: WindowEvent { window_id: WindowId(WindowId(2099080)), event: KeyboardInput { device_id: DeviceId(DeviceId(0)), input: KeyboardInput { scancode: 53, state: Released, virtual_keycode: Some(Slash), modifiers: CTRL }, is_synthetic: false } }
[38.347761500s] [INFO ] [alacritty] glutin event: MainEventsCleared
[38.347943900s] [INFO ] [alacritty] glutin event: RedrawEventsCleared
[38.611652900s] [INFO ] [alacritty] glutin event: NewEvents(WaitCancelled { start: Instant { t: 209698.9334393s }, requested_resume: None })
[39.394845700s] [INFO ] [alacritty] glutin event: NewEvents(WaitCancelled { start: Instant { t: 209699.9011342s }, requested_resume: None })
[39.395189000s] [INFO ] [alacritty] glutin event: WindowEvent { window_id: WindowId(WindowId(2099080)), event: KeyboardInput { device_id: DeviceId(DeviceId(0)), input: KeyboardInput { scancode: 53, state: Released, virtual_keycode: Some(Slash), modifiers: CTRL }, is_synthetic: false } }
[39.395459400s] [INFO ] [alacritty] glutin event: MainEventsCleared
[39.395608200s] [INFO ] [alacritty] glutin event: RedrawEventsCleared
[39.409893600s] [INFO ] [alacritty] glutin event: NewEvents(WaitCancelled { start: Instant { t: 209699.9810826s }, requested_resume: None })
[39.410080900s] [INFO ] [alacritty] glutin event: WindowEvent { window_id: WindowId(WindowId(2099080)), event: ModifiersChanged((empty)) }
[39.410257600s] [INFO ] [alacritty] glutin event: WindowEvent { window_id: WindowId(WindowId(2099080)), event: KeyboardInput { device_id: DeviceId(DeviceId(0)), input: KeyboardInput { scancode: 29, state: Released, virtual_keycode: Some(LControl), modifiers: (empty) }, is_synthetic: false } }

[chrisduerr]

We get no ReceivedCharacter event after you press Ctrl+/, suggesting that for some reason the character code is swallowed by Windows.

Can you try creating a binding in your config that maps this character manually? I'd expect this to do the trick.

[doongjohn]

try this config

key_bindings:
  # Enable Special Keyboard Combinations in Alacritty / Kitty for Neovim
  # https://youtu.be/lHBD6pdJ-Ng
  # - { key: Semicolon, mods: Control, chars: "\x1b[59;5u" }
  # - { key: Period, mods: Control, chars: "\x1b[46;5u" }
  # - { key: Comma, mods: Control, chars: "\x1b[44;5u" }
  - { key: Slash, mods: Control, chars: "\x1b[47;5u" }
  - { key: Space, mods: Control, chars: "\x1b[32;5u" }
  # - { key: Return, mods: Control, chars: "\x1b[13;5u" }
  # - { key: Return, mods: Shift, chars: "\x1b[13;2u" }

and for neovim use <c-/> for ctrl+/ instead of <c-_>

[chrisduerr]

Closing since author seems to be gone.

[allworldg]

or keep use <c-_>. just change a bit :

- { key: Slash, mods: Control, chars: "\x1b[95;5u" }

[qizidog]

env:

❱❱❱ alacritty -V
alacritty 0.12.2 (9d9982d)

os info: 
macOS Monterey 12.6.6 (M1)

same issue, fixed with key-bindings as follow:

key_bindings:
  # fix Control-/
  - { key: "Slash", mods: Control, chars: "\x1f" }

[arminveres]

@qizidog thanks, that fixed it for me as well on macOS 13.