xfce4-display-settings, dual monitors present, initially only one shown

Submitted by Jonathan Andrews

Assigned to Jérôme Guelfucci

Link to original bug (#14268)

Description

https://www.youtube.com/watch?v=zmUerhLQlEI&t=7s

Linux Mint 18.3 Xfce 64-bit

xfce4-display-settings bug.

When initially started it shows one monitor present and mirroring off when in reality it has two monitors and mirroring on. Toggling mirror refreshes the sate and both monitors then show. See youtube video link above.

PS also built the package from source, it just segfualts.