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I have mapped Ctrl-s key to save a file in .vimrc. This was working fine till I just installed tmux. (Note that it was working fine because I had "stty -ixon" set in my .bashrc file).

How can I get the mapping work again when opening vim from tmux window?

What I tried so far without success:

  1. Added stty -ixon in .bashrc
  2. Added stty stop undef in .bashrc
  3. Added both 1 and 2 in .bashrc
  4. Added unbind-key C-s in .tmux.conf
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  • Does tmux intercept Ctrl-S? This must be documented somewhere. Can you change tmux keybinds? I bet that's also documented.... Commented Feb 10, 2019 at 14:48
  • @Useless I thought the same earlier and had tried "unbind-key C-s" in .tmux.conf but didn't help. Commented Feb 10, 2019 at 14:55
  • If you've done some research and tried some things already, could you say what you've found, and what you tried unsuccessfully in your question? Otherwise you're going to waste lots of time - both yours and everyone else's. Commented Feb 10, 2019 at 15:11
  • Apologies @Useless. Let me add that Commented Feb 10, 2019 at 15:13
  • 4
    does terminal output freeze with C-s in tmux when not in vim? Commented Feb 10, 2019 at 16:47

1 Answer 1

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Thanks @jeremysprofile for the suggestion. Here is the solution that fixed my issue for future references:

tmux was working fine outside of vim for C-s. So, instead of opening vim straight by 'tmux new-window -n editor vim', I did 'tmux new-window -n editor bash' and then 'tmux send-keys -t my_sess:editor "vim" C-m'.

The reason above works is because now vim is opened under bash(which invokes the .bashrc prior to calling vim).

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