Lenovo T431s, 20AA000BUS, 20AA000MUS manual Audio problems, Click Hardware and Sound

Models: 20AA T431s 20AA000MUS 20AA000BUS

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Solution: Change the resolution and the color depth to lower settings for the primary display. Refer to the solution to the above problem.

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, first ensure 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: Ensure that the built-in audio device is configured correctly.

1.Go to 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-clickSound, video and game controllers.

5.Ensure that the following device is enabled and configured correctly:

– Realtek High Definition Audio

Problem: Recordings made using the microphone input are not loud enough.

Solution: Ensure that the Microphone Boost function is turned on and set by doing the following:

1.Go to Control Panel.

2.Click Hardware and Sound.

3.Click Sound.

4.Click the Recording tab in the Sound window.

5.Select Microphone, and click the Properties button.

6.Click the Levels tab, and move the Microphone Boost slider upwards.

7.Click OK.

Note: For more information about controlling volume, refer to your Windows online help.

Problem: A volume or balance slider cannot be moved.

Solution: The slider might be grayed out. This means that its position is fixed by the hardware and cannot be changed.

Problem: The volume sliders do not stay in place when some audio programs are used.

Solution: It is normal for the sliders to change position when certain sound programs are used. The programs are aware of the settings in the Volume Mixer window and are allowed to change the settings

126User Guide

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Lenovo T431s, 20AA000BUS manual Audio problems, Click Hardware and Sound, Double-clickSound, video and game controllers