Issue

• Is zaphod mode dual monitor with separate protocol screens (e.g., :0.0 and :0.1) is supported by Red Hat in RHEL 7 ?
• GNOME desktop fails to render on second X11 screen(:0.1) when configured for two independent X screens.
• When using two monitors as two independent X11 screens ($DISPLAY = :0.0 and :0.1, respectively; sometimes called "Zaphod mode"), GNOME seems to ignore the second screen completely.
• GNOME desktop appears correctly on screen :0.0, but screen :0.1 is just a blank black canvas. If you force a window to the second monitor, it will render without any window manager decorations.