Acer H6815BD Series User Manual page 33

Selecting "On" allows synchronized power ON/OFF operation
between the projector and a CEC-compatible device
connected to the HDMI/MHL port of the projector.
HDMI CEC
This function is especially suitable for gaming environment. It
reduces input to output latency and helps create a seamless
experience.
Low Input Lag
Press "ENTER" after choosing "Yes" to return the display
Reset
parameters on all menus to the factory default settings.
This function is only available for the HDMI/MHL port.
This function is only available for certain input timings.
After turned on, performing Auto Keystone or
adjusting the following settings will deactivate this
function: Aspect ratio, Keystone, H. Position, V.
Position, Frequency, HDMI Scan Info, Digital Zoom.
When Display Mode is Game Dark or Game Bright, this
function will be automatically turned on.
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