Why is Ctrl+k in insert mode for typing a digraph is not working?

[markvincze]

Ctrl+k in insert mode is not working with kickstart.nvim.

I looked at the config, and the only mapping I see that could clash is this:

  vim.keymap.set('n', '<C-k>', '<C-w><C-k>', { desc = 'Move focus to the upper window' })

But this is only for normal mode. And if I comment it out, it still does not work.
If I start Neovim without the Kickstart config, the Ctrl+k works properly.

Does someone know how this can be fixed?

[sumit-sahrawat]

Do you have blink.cmp installed? I used <leader>sk to search keymaps and typed <C-k> (with angular brackets) to find this:

These are the keymap presets in blink.cmp: https://cmp.saghen.dev/configuration/keymap. Looks like they're all using <C-k> so you might have to set yours to none and build one yourself.

Alternatively you might be able to rebind <C-k> back to the digraph functionality but I'm not sure how tbh.

[markvincze]

Thanks for the reply! I do have blink.cmp, and indeed if I comment it out from the config, then Ctrl+k starts working again..

Although interestingly if I search for the keymaps with <leader>sk, and search for <C-K>, I'm not getting any hits.

In any case, I'll ask this question in the blink.cmp repo.

Thanks for the help!

[markvincze]

Yep, there is an issue there about this already: saghen/blink.cmp#1307
Closing this.

[mohsensc]

@sumit-sahrawat is right, it's blink.cmp. The default preset maps insert-mode <C-k> to { 'show_signature', 'hide_signature', 'fallback' }, so the digraph never sees the key (presets.lua).

Unset just that one in kickstart's blink setup:

keymap = {
  preset = 'default',
  ['<C-k>'] = false,
},

blink drops keys set to false and Neovim's built-in i_CTRL-K comes back. If you still want the signature toggle, put it on something else, e.g. ['<C-s>'] = { 'show_signature', 'hide_signature', 'fallback' }.