CapsLock -> Control remap stopped working inside Vim inside WSL inside Windows Terminal

[christianfosli]

Disclaimer I realize this is a very specific issue, and I'm not 100% sure it is caused by a bug in PowerToys.
However, this was working perfectly about a week ago before I updated PowerToys to version 0.19.2,
so I suspect it stopped working because of some recent changes to PowerToys.

ℹ Computer information

• Windows build number: Version 1909 (OS Build 18363.959)
• PowerToys version: 0.19.2
• PowerToy module: Keyboard Manager

📝 Provide detailed reproduction steps (if any)

1. Remap key "Caps Lock" to "Ctrl" in PowerToys Keyboard Manager
2. Open Windows Terminal (I use v1.1.2021.0)
3. Open a WSL distro (I tested FedoraRemix F31 and Ubuntu 20.04)
4. Open Vim or Neovim, go into insert mode
5. Press "Caps Lock"

✔️ Expected result

"Caps Lock" should be treated as "Control". No visible result.

❌ Actual result

"Caps Lock" is treated as "Control-Space", and tries insert any previously inserted text again.

More relevant details

• This happens only inside Windows-Subsystem for Linux (WSL1) inside windows terminal
• I tested with a new installation of Ubuntu from the Microsoft Store, with no customizations to Ubuntu, Vim or wslconf
• I tested inside and outside of tmux, which did not make any difference
• The issue is not present running WSL from CMD or Powershell.
• The issue is not present running Neovim from Windows Powershell inside windows terminal
• The issue is not present running Linux (tested Alpine) inside windows terminal as a Docker container

It's a bit annoying, because I like to escape out of normal mode by pressing <CapsLock>-[ (which should be treated as <Ctrl>-[). Now I instead insert the text i wrote twice.

📷 Screenshots

Result from <Ctrl-v><Caps-Lock> in vim (Ctrl-v inserts the key pressed next as text)

[christianfosli]

It could also be a bug in Windows Terminal 1.1
This issue looks a bit similar

Unfortunately I'm unable to check if it works in Windows Terminal 1.0 because their msix installer package is broken on my computer..

[christianfosli]

Closing in favour of microsoft/terminal#7120
The issue went away by adding an expirmental falg to Windows Terminal's settings

[RT-Tap]

Not sure if you figured this out but for me it was because power toys was running as user rather than admin. Just go to Geneeral --> administrator mode

Credit: https://stackoverflow.com/questions/67593307/microsoft-powertoys-key-mapping-not-working-in-visual-studio