XTestFakeKeyEvent broken in Xvfb

Clemens Eisserer linuxhippy at gmail.com
Tue Oct 11 23:09:31 PDT 2005


Hi again,

if this is really a bug, is there a bug-tracking interface or a place
where people can report problems to?

Thanks, lg Clemens

2005/10/10, Clemens Eisserer <linuxhippy at gmail.com>:
> Hello again,
>
> I am since some time experimenting with an application running in an
> Xvfb-instance which is controlled via XTest.
>
> One problem that showed up is that it is not possible to reliable
> simulate key-events when running in Xvfb, whereas a "native" X-Server
> does not cause any problems.
> Some key-events are received by the client-application twice, others
> get completly lost.
>
> I first thought this is a specific problem of the library I used for
> this task (java.awt.Robot class in java) and wrote my own library in
> plain C using XTest (again, sorry for the accidently post with the
> forgotten XFlush) which is heavily based on the code of Xvkbd-2.7 and
> it shows exactly the same sympthoms. If I insert a wait of 200ms after
> each key everything works like expected with both libraries (100ms do
> not work).
>
> For my testing I used Xvfb delivered with Xorg-6.8.2, running with the
> following flags:
> Xvfb :1 -screen :1 500x1000x24 -fbdir /tmp/
>
> Any ideas? Of course I am willed if someone want to take a look at the
> problem, I already went through its source but, :-(
>
> lg Clemens
>



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