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• Problem: If you use the Extend desktop function, you cannot set a higher resolution or higher refresh
rate on the secondary display.
Solution: Change the resolution and the color depth to lower settings for the primary display.
• Problem: Display switching does not work.
Solution: If you use the Extend desktop function, disable it, and change the display output location. If
a DVD movie or a video clip is playing, stop the playback, close the program, and then change the
display output location.
• Problem: The screen position on the external monitor is incorrect when that monitor is set for a high
resolution.
Solution: Sometimes, when you use a high resolution such as 1600x1200, the image is shifted to left or
right on the screen. To correct this, rst make sure that your external monitor supports the display mode
(the resolution and the refresh rate) that you have set. If it does not, set a display mode that the monitor
supports. If it does support the display mode you have set, go to the setup menu for the monitor itself
and adjust the settings there. Usually the external monitor has buttons for access to the setup menu. For
more information, see the documentation that comes with the monitor.
Audio problems
• Problem: Wave or MIDI sound does not play correctly.
Solution: Make sure that the built-in audio device is congured correctly.
1. Open Control Panel.
2. Click Hardware and Sound.
3. Click Device Manager. If you are prompted for an administrator password or conrmation, type the
password or provide conrmation.
4. Double-click Sound, video and game controllers.
5. Make sure that the Realtek HD Audio driver is enabled and congured correctly:
• Problem: Sound does not come from a headphone or a speaker, or your computer cannot record sounds.
Solution: To switch from one device to another (for example, from a speaker to a headphone, or from
an external microphone to a built-in microphone), do the following:
1. Open Control Panel and click Hardware and Sound.
2. Click the Realtek HD Manager icon.
3. Make sure that you are in MULTI-STREAM mode in the Device advanced settings window.
4. In the Volume Mixer window, select the device you want-for example, speakers.
5. Play any sound via a music program (for example, Windows Media Player). Make sure that sound
comes from speakers now.
6. Then, if you would like to switch to a headphone, close the music program.
7. Go to the Volume Mixer window. Then select another device, which is now the headphone.
8. Play any sound via the music program. Make sure that sound comes from a headphone attached
directly to the system.
For more information, refer to the help information system of Realtek HD Manager.
Note: In the Volume Mixer window of Realtek HD Manager, a check mark by the entry for a device,
such as speakers for a playback device, or a built-in microphone for a recording device, shows that
the device has been selected.
• Problem: Recordings made using the microphone input are not loud enough.
Solution: Make sure that the Microphone Boost function is turned on and set by doing the following:
1. Open Control Panel and click Hardware and Sound.
132 User Guide