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In Windows 11 WSL Ubuntu 20.04, I am using the new WslG feature which allows native gtk apps to run smoothly on windows (and I compiled Emacs 29 with the --with-pgtk option when installing), but I am running into the Alt (Meta) key randomly being stuck.

This most often occurs in this case (Alt+Tab is the shortcut to switch windows in Windows 11):

  1. Launch Emacs
  2. While active application is Emacs, use Alt+Tab to switch to the browser application
  3. Use Alt+Tab once more to switch back to Emacs
  4. Meta key is stuck in Emacs. E.g. just pressing x registers as M-x in Emacs

I have been able to get around the problem by pressing both Alt keys together, which returns emacs to the "normal" state in some cases, sometimes I have to repeat it a few times though. Is there some way to have Emacs automatically press both Alt (Meta) keys whenever I switch to the Emacs frame? Or some other elegant solution?

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  • Are you sure it’s not just a sticky key on your keyboard?
    – db48x
    Commented Jun 29, 2022 at 20:27
  • @db48x yes, alt (meta) key works everywhere else. It's probably a bug with how WSLg is implemented.
    – herophant
    Commented Jun 29, 2022 at 21:37

1 Answer 1

Reset to default
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This is a known issue in WSLg. See the opened issue here: https://github.com/microsoft/wslg/issues/162

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