Lenovo Q180 User's Guide download pdf (Page 18)

User Guide

or monitor does not support this new resolution, the system will recovery to the

original resolution within 20 seconds.

Set the refresh rate of your TV or monitor to less than 60 Hz to avoid damage to

your TV or monitor.

If there is no image displayed on the TV or monitor after setting a new refresh

rate, turn off your TV or monitor and wait for a moment before restarting. For TV,

you may switch the input style to another and then switch it back to make your

TV display normally.

Problem: Ripple on screen.

Troubleshooting and problem resolution:

1. Check for devices located less than one meter from the computer such as

refrigerators, electric fans, electric dryers, UPSs, regulators, ﬂuorescent lamps

or other computers that may be generating magnetic interference.

2. Move any interfering devices away from the computer.

3. If the problem persists, consult your display devices supplier.

3.2 Troubleshooting audio problems

Problem: No sound from integrated speakers.

Troubleshooting and problem resolution:

• AdjusttheWindowsvolumecontrol—double-clickthespeakericoninthe

lower-right corner of your screen. Ensure that the volume is turned up and

that the sound is not muted. Adjust the volume, bass, and treble controls to

eliminate distortion.

• Reinstalltheaudiodriver.

• Disconnectanyheadphonesfromtheheadphonesocket—soundfromthe

speakers is automatically disabled when headphones are connected to the

computer’sside-panelheadphonesocket.

• RemoveandreconnecttheHDMIconnector,restartthecomputer,andsetthe

HDMI as the audio output mode (for example via the control panel).

Note: IdeaCentre Q180 supports HDMI audio and video output. To learn

more about HDMI, go to the web site at: http://www.hdmi.com/

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Lenovo Q180 User's Guide Page 18