We use the vncviewer in a kiosk fashion for remote access to industrial
controls and monitors. I have developed a service wrapper around it to
keep a persistent connection as the sole X windows client. This normally
all works very good.
While most of our deployments are working great, we have one case where
the VNC server (sadly, not tigervnc) is regularly (a few times per hour)
causing vncviewer to pop a GUI message indicating "read: Connection reset
by peer (104)". I realize the real problem is almost certainly on the
server end, but I wish to make my kiosk client more robust. My ultimate
preference would be for such error messages to be emitted to stderr where
my service could capture them and relay them to the appropriate system
log. Most importantly, I don't want vncviewer to "hang" with such a
message. I'd much rather it simply exit (with a non-zero status code) so
that my kiosk service could restart a fresh viewer and work the best in
can despite the errors. I really don't mind the GUI messages appearing, I
just don't want require the user's interaction to dismiss them. The
kiosk's don't have mice and I've not seen any way to give the error
messages focus -- that's likely due to fact that I'm not utilizing any
window manager.
In reviewing the docs, I don't see any options that would let me get any
closer to my goal. Did I overlook something? For the record, I don't
think a cheat sheet explaining to the user that they can "1. hit F8, 2.
select 'Exit viewer', 3. hit Enter" is a very good solution.
--
John Florian
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