We advise that customers use the built-in display settings in Chrome OS to set the screen orientation. To update the screen orientation in this way:
Attach a keyboard and mouse to your Chromebox.
Log in to the Chromebox. If Signagelive is already installed
Turn the device off and back on.
At the Signagelive loading screen press CTRL + ALT + S
Log in to the Chromebox
Set the display orientation:
Click the status area, where your account picture appears.
Click Display Settings.
Set the Display Orientation to None, 90 degrees, 180 degrees, or 270 degrees.
Sign out of the device to automatically boot back into Signagelive