Audio Problems - Lenovo ThinkPad T420si User Manual

For Windows Vista: Using the Display Settings window, change the resolution and the color depth to
lower settings for the primary display. To launch the Display Settings window, refer to the "Solution" for
"The Extend desktop function does not work" above.
For Windows XP: Using the Display Properties window, change the resolution and the color depth to lower
settings for the primary display. To launch the Display Properties window, refer to the "Solution" for "The
Extend desktop function does not work" above.
• 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, first make sure that your external monitor supports the display
mode—that is, 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 details, see the reference manual for the monitor.

Audio problems

• Problem: Wave or MIDI sound does not play correctly.
Solution: Make sure the built-in audio device is configured correctly.
For Windows 7 and Windows Vista:
1. Click Start ➙ Control Panel.
2. Click Hardware and Sound.
3. Click Device Manager. If you are prompted for an administrator password or confirmation, type the
password or provide confirmation.
4. Double-click Sound, video and game controllers (in Windows Vista, click the + mark for Sound,
video and game controllers).
5. Make sure the following device is enabled and configured correctly:
– Conexant 20672 SmartAudio HD (Windows 7)
– Conexant 20672 SmartAudio HD or Conexant Pebble High Definition SmartAudio 221 (Windows
Vista)
For Windows XP:
1. Click Start ➙ Control Panel.
2. Click Performance and Maintenance
3. Click System.
4. Click the Hardware tab, and then click the Device Manager button.
5. Click the + mark for Sound, video and game controllers.
6. Make sure the following device is enabled and configured correctly:
– Conexant 20672 SmartAudio HD or Conexant Pebble High Definition SmartAudio
• Problem: Recordings made by using the Microphone input are not loud enough.
Solution: Make sure that Microphone Boost is turned on and set as follows:
For Windows 7 and Windows Vista:
1. Click Start ➙ Control Panel.
2. Click Hardware and Sound
3. Click Sound.
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