Once I install Xibo I can no longer access any input source on a Viewsonic CDE5510. It changes the source but Xibo seems to maintain control of the screen. If I connect a keyboard and can escape out and see the pc desktop flash on the screen before Xibo starts back up and ignores the source and grabs control of the display again.
Xibo is configured to become the Launcher (it does usually ask you) - I wonder if the ViewSonic’s TV functions are built into their Launcher and Xibo replaced that.
Can you get into settings and configure Xibo to not be the Launcher?
You may also want to set Xibo to not auto-start in the Display Settings profile on your CMS.