Acer ICONIA - Manual (Page 66)

Adjusting display settings 62
English
Select Multiple Displays from the menu on the left and select the Second
Display.
In the General Settings window you will need to set the display as follows.
• Display: Built-in Display 2
• Resolution: 1366 x 768
• Color Depth: 32 Bit
• Refresh Rate: 60 Hz
• Rotation: Rotate to 180 Degrees
• Scaling: Scale Full Screen