[FreeNX-kNX] [BUG] Alt/Ctrl keys get stuck

[Jeremy Wilkins]

I know this thread is getting old, but I wonder if that is related to the NX
3.2.0 bug on 64bit keyboard support?  NX has a fix out now for that one.


Hai Zaar wrote:
> 
> Good day!
> I use yakuake app on my remote nx desktop. yakuake is a popup konsole
> window for KDE.
> I use Alt-~ key sequence to bring it on and off.
> 
> The problem is that occasionally after pressing that combination, Alt
> key gets stuck - i.e. it looks like nx think that its always pressed.
> Unfortunately, I've not found a way to release it - pressing keys
> again and again, punching keyboard, even reconnecting the session does
> not help.
> I can't even close the session - I can't press nx client dialog
> buttons cause it thinks its Alt-click - had to connect via ssh and
> kill nx session.
> 
> It happens both from Windows and Linux clients. I've got two remote
> servers - one is debian testing and the other is my custom
> linux-from-scratch build.
> LinuxFromScracth has freenx-0.7.1/nx-3.1
> Debian testing has latest freenx-0.7.2/nx-3.2 (Jeremy ubuntu rebuilds)
> 
> Here is how to reproduce it
>  1. Start nx client
>  2. Connect to some server where you has suspended KDE desktop
> session, where you have yakuake running and Alt-~ shortcut is set to
> pop out yakuake.
>  3. As desktop just starts to appear - type repeatedly Alt-~ randomly
> pressing and releasing each/both keys
> 
> After doing some more tests, It looks like this stickiness happens  when:
> 1. Nx is "busy", i.e. loading session, redrawing (when switching
> to/from fullscreen)
> 2. You tap a key sequence that is assigned to some global KDE shortcut.
> 
> For example, you can assign Ctrl-space to "switch to next keyboard
> layout" in kcontrol, then tap Ctrl-space several time while nx is
> "busy" - you'll get your Control key stuck.
> 
> Again, this bug is very disturbing, since I've found to no way to get
> out of stickiness rather then killing the session.
> 
> -- 
> Zaar
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