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Running NeoVim with the GTK interface, the cursor/insertion point is invisible. How can I get a visible cursor?

In insert mode there's no indication at all of where I'm typing:

Screenshot of a NeoVim-GTK window in insert mode, without a cursor

In normal mode it's almost as bad: moving the cursor over a visible character very slightly changes its form or shifts it a pixel sideways or something, but it's really hard to see. Here it's on the second ‘g’ in “wiggle”:

Screenshot of some text in normal mode, in which the two ‘g’s in “wiggle” look pretty much identical, but the spacing seems a bit off, as though the second one has nudged slightly towards the first ‘g’ and away from the ‘l’

I'm running Ubuntu Mate 20.04 LTS. NeoVim was installed from the neovim package, which is version 0.4.4-3. Its GTK interface was installed with the following, and reports itself as v0.2.0-76-gc036492:

$ git clone git@github.com:daa84/neovim-gtk.git
$ cd neovim-gtk
$ sudo apt install cargo
$ cargo build --release
$ sudo make install

Invoked simply as nvim-gtk. I have moved my .vimrc and .gvimrc files and .vim directory elsewhere, so this is happening without anything in my personal config.

Any suggestions for how to see what I'm typing gratefully received. Thanks.

Smylers
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    I would vote for "off-topic". You are building NeoVim from the latest upstream sources, which makes it impossible to reproduce. Why are you not just open an issue on https://github.com/neovim/neovim/issues? This might haben on Ubuntu, but I doubt, that it is an Ubuntu only issue. – Simon Sudler Jun 01 '21 at 06:57
  • The question's here because I want to run NeoVim with the GTK interface on Ubuntu, by any means. The above just describes what I did (though I am actually using NeoVim installed with apt, as I stated). NeoVim probably wouldn't want a bug report on something specific to the GTK interface. I'll report a bug on neovim-gtk if it indeed turns out to be a bug, not just me doing something wrong. – Smylers Jun 02 '21 at 07:13
  • Did you have a chance of testing what was suggested? – sancho.s ReinstateMonicaCellio Jun 07 '21 at 07:57

1 Answers1

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Disclaimer: I don't have neovim-gtk so I can't test this; I am just trying to help.

There is a plugin to change cursor blinking, perhaps that can be helpful.

Related? https://github.com/daa84/neovim-gtk/issues/99
NVIM_GTK_DOUBLE_BUFFER can help?

sancho.s ReinstateMonicaCellio
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  • The plugin just wraps an existing `rpcnotify()` call, which still doesn't work. And nor does the double buffer thing (as per a recent comment at that link). However, that does seem to be the relevant bug report, which I'd failed to find myself, so I'll accept this answer as the most useful. – Smylers Jun 08 '21 at 07:06