User Guide

Optimus Graphics feature automatically switches between High Performance Graphics and Energy Saving
Graphics. You do not have to restart your computer, close programs, or intervene manually.
Using audio features
Your computer is equipped with the following items:
• Audio connector, 3.5 mm (0.14 inches) in diameter
• Microphones
• Speakers
Your computer also has an audio chip that enables you to enjoy various multimedia audio features, such as
the following:
• Compliant with High Definition Audio
• Playback of MIDI and MP3 files
• Recording and playback of PCM and WAV files
• Recording from various sound sources, such as a headset attached
The following list provides information about supported functions of the audio devices attached to the
connectors on your computer or the docking station.
• Headset with a 3.5-mm (0.14-inch), 4-pole plug: Headphone and microphone functions
• Conventional headphone: Headphone function
Note: The conventional microphone is not supported.
Using the smart audio feature
The smart audio feature is supported on some computer models. To help protect against hearing loss, the
feature limits the computer’s maximum wide band true RMS output voltage to 130 mV when a headset or
headphone is connected.
To change the setting, do the following:
1. Go to Control Panel and view by Large icons.
2. Click SmartAudio. In the window displayed, click the Disable Headphone Limiter icon. Then follow the
on-screen instructions.
Using the cameras
Depending on the model, your computer might be equipped with a conventional camera with ThinkShutter,
or your computer might support both an infrared camera and a conventional camera.
Using the conventional camera with ThinkShutter
To use the conventional camera with ThinkShutter to take pictures and record videos, slide ThinkShutter to
the left to unveil the camera lens first. Then open the Start menu and click Camera from the program list. If
you use other programs that provide features such as photographing, video capturing, and video
conferencing, the camera starts automatically when you enable the camera-required feature. When the
camera starts, the camera status indicator nearby turns on, indicating that the camera is in use. If you want
to cover the camera lens, slide ThinkShutter to the right.
Chapter 2. Using your computer 33