Bug#730405: freeorion: input textfields doesn't work after a while.

[Javier Cantero]

Since libOIS upstream is apparently dead, and the projects that use it (mostly
games[1] using Ogre3D libraries like freeorion) are gradually abandoning this
library (including Ogre3D), clearly the bug will never be resolved.

So I want to sumarize my last discoveries about the bug itself. First, 
the bug is caused by a weird interaction with xscreensaver. The behaviour of
xscreensaver in some way causes the appearance of the unexpected KeyRelease
events that leads to the libOIS misbehaviour already explained. More details
here: http://www.freeorion.org/forum/viewtopic.php?p=70165#p70165

My suspects of the root of the problem are detailed here:
http://www.freeorion.org/forum/viewtopic.php?p=71435#p71435 Long explanation
short: I think the bug could be in X.Org Server event queue handling code, but
that code is too complex (and prone to errors) to be worth check it without a
good reason (and there is no good reason if upstream and dowstream are not going
to apply any patches).

So I recommend to anyone affected by this bug to talk to the developers of the
application to move away from libOIS to another library with actual suport (like
SDL). It's going to be a better solution in the long term.


[1] By the way, it's a bit strange that libOIS is under the umbrella of Debian
Multimedia Maintainers instead of Debian Games Team due to its nature and
users.

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