Acer LE.RK602.046 User Manual page 47

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Screen orientation and G-sensor
Your computer has a built-in accelerometer that detects the tablet's orientation
and automatically rotates the screen to suit the orientation.
You can lock the screen orientation by using the lock switch. The orientation
may also be locked at other times, including:
• When the tablet is attached to the keyboard dock.
• With an HDMI cable is plugged in.
• When programs designed for a specific orientation are running.
Note: You are advised to keep your tablet in landscape
orientation with the webcam above the screen while you are
making a video call. Please rotate your display to the landscape
orientation and use the lock switch to set the orientation before
starting a video call.
The screen orientation lock status will be indicated via icons briefly displayed
onscreen when the status changes.