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https://issues.apache.org/jira/browse/GUACAMOLE-232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15896541#comment-15896541
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devrandom commented on GUACAMOLE-232:
-------------------------------------

??The issue is not that the key is repeating, but that the key release is 
somehow missed.??
Yep, because of this I thought it would help to send the release an no further 
down presses :)

Let me note that the stuck key loop for space/return/backspace happens only 
sporadic and most of the time when typing at faster speeds or doing much 
backspace presses.

Attached you'll find a screenshot which shows:

* single press space
* single press backspace
* single press return

The keyup events look "strange" for me  -> keycode 0?

The bluetooth keyboards(tested two with same result on your key test) work fine 
in all other App's, no stuck key behaviour.
I found the following link:
Perhaps a focus/blur problem?
http://www.openradar.me/15560374




> Stuck keys iPad/Bluetooth keyboard (Return/Backspace/Space)
> -----------------------------------------------------------
>
>                 Key: GUACAMOLE-232
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-232
>             Project: Guacamole
>          Issue Type: Bug
>          Components: guacamole-client
>    Affects Versions: 0.9.10-incubating, 0.9.11-incubating
>            Reporter: devrandom
>         Attachments: guac_stuck2.png, guac_stuck.png
>
>
> I have the same issues as described in:
> https://glyptodon.org/jira/browse/GUAC-661
> Which theoretically was solved in 0.9.7.
> After some typing using iPad with connected bluetooth keyboard, the following 
> Keys may get stuck.
> * return
> * space
> * backspace
> Attached you'll find an example using xev on linux.
> Guacamole produces keyup and keydown events in a loop.



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