One quick update I noticed, after further experimentation: If the "Bypass X11" option is disabled (to keep the fullscreen artifact from impeding the interface), the output display updates each time I move focus away from OpenLP - such as…
Based on the stack trace, I suspect the problem was caused when I upgraded Libre Office. I'll check in synaptic (I upgraded both OpenLP and Libre Office via the update manager), but if you have a chance could you check to see what version of the &q…