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Sequence CTRL+\ is not detected in some keyboard layouts #11650

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opened 2026-01-31 02:53:39 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 02:53:39 +00:00
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Originally created by @ojroques on GitHub (Dec 2, 2020).

Originally assigned to: @lhecker on GitHub.

Environment

Windows build number: 10.0.19041.0
Windows Terminal version (if applicable): Windows Terminal Preview v1.5.3242.0

Edit: I've updated the description.

Here is the old one.

Steps to reproduce

  1. Try to use a mapping containing CTRL+\ in an application: for instance CTRL+\ CTRL+n in Neovim to quit the built-in terminal or by adding a new mapping in tmux.

Actual behavior

Nothing happens. It seems the CTRL+\ sequence is completely ignored by Windows Terminal. I'm using WSL1 with Ubuntu 20.04 but I've tried in Powershell and same issue. I've also tried with another terminal emulator (kitty) and CTRL+\ works fine there.

I found maybe related issues: #1288, #521 but they are marked resolved and I'm still getting the bug. Any idea why?

Steps to reproduce

  1. Change your keyboard layout to the UK extended layout
  2. Launch the Terminal and run showkey -a (I'm using Ubuntu 20.04 in WSL)
  3. Press CTRL-\

Actual behavior

Nothing happens. The CTRl-\ sequence goes undetected by the terminal. I've tried different layouts (US and French) and it works fine, so this issue seems tied to the choice of the keyboard layout.

Expected behavior

CTRL-\ is correctly detected. Maybe related issues: #1288, #521.

Originally created by @ojroques on GitHub (Dec 2, 2020). Originally assigned to: @lhecker on GitHub. <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment ```none Windows build number: 10.0.19041.0 Windows Terminal version (if applicable): Windows Terminal Preview v1.5.3242.0 ``` **Edit**: I've updated the description. <details> <summary>Here is the old one.</summary> # Steps to reproduce 1. Try to use a mapping containing `CTRL+\` in an application: for instance `CTRL+\ CTRL+n` in Neovim to quit the built-in terminal or by adding a new mapping in *tmux*. # Actual behavior Nothing happens. It seems the `CTRL+\` sequence is completely ignored by Windows Terminal. I'm using WSL1 with Ubuntu 20.04 but I've tried in Powershell and same issue. I've also tried with another terminal emulator (kitty) and `CTRL+\` works fine there. I found maybe related issues: #1288, #521 but they are marked resolved and I'm still getting the bug. Any idea why? </details> # Steps to reproduce 1. Change your keyboard layout to the [UK extended layout](https://en.wikipedia.org/wiki/QWERTY#United_Kingdom_(Extended)_Layout) 2. Launch the Terminal and run `showkey -a` (I'm using Ubuntu 20.04 in WSL) 3. Press CTRL-\ # Actual behavior Nothing happens. The CTRl-\ sequence goes undetected by the terminal. I've tried different layouts (US and French) and it works fine, so this issue seems tied to the choice of the keyboard layout. # Expected behavior CTRL-\ is correctly detected. Maybe related issues: #1288, #521.
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Reference: starred/terminal#11650
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