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From "Keith Johnson (Jira)" <>
Subject [jira] [Commented] (GUACAMOLE-609) Add support for QEMU extended key events
Date Fri, 06 Dec 2019 16:43:00 GMT


Keith Johnson commented on GUACAMOLE-609:

[~mjumper] It doesn't appear to be strictly required that libvncclient support this extension
out of the box, as it's possible to implement support for custom messages/encodings as a client
application using libvncclient. I've made a proof of concept of the changes required to support
the qemu extended key message in the guacd server here:


The changes extend the `key` message to take a third argument containing the scancode. I have
not tested it against non-qemu vnc servers yet. Is this an approach you'd consider merging

> Add support for QEMU extended key events
> ----------------------------------------
>                 Key: GUACAMOLE-609
>                 URL:
>             Project: Guacamole
>          Issue Type: Improvement
>          Components: VNC
>         Environment: Parrot VM inside KVM-QEMU
>            Reporter: faelis
>            Priority: Minor
> When guacamole is connected to a VM running inside qemu using the built in VNC, my physical
azerty keyboard looks like acting as a qwerty keyboard.
> If the layout inside the VM is set to qwerty it works nearly correct.
> If the layout inside the VM is set to azerty it doesn't work (a=q,z=w, etc...).
> If I use novnc instead of guacamole, the keyboard works fine.

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