Configuring your sound card

During the first start-up after you install Red Hat Linux, the Red Hat Setup Agent tries to detect and configure your sound card. If that process was successful, you can skip this procedure. If your sound card wasn't detected or if you add a card later, here are a few things you can try: Insert a music CD into the drive and see if it plays.

Tip Audio volume is set fairly low by default. If you can barely hear your audio, click Sound & Video ® Volume Control (from the Red Hat menu) to increase the volume level. Move the sliders to adjust the volume to your taste. Alternatively, from the command line type aumix -v 100 in a Terminal window to turn the volume all the way up, so you can adjust sound from your volume knobs. From the Red Hat menu, click System Settings ® Soundcard Detection (this runs the redhat-config-soundcard command). If your sound card was detected, an Audio Devices window should appear, as shown in Figure 8-1. Click the Play Test Sound button and you should hear a test sound. Click OK to finish up.

Figure 8-1: The Audio Devices (redhat-config-soundcard) window detects your sound card. If the sound card still isn't detected, try the Sound Configuration Utility (you may need to install the sndconfig package from CD #3), as follows: Run the following command as root user from a Terminal window: # /usr/sbin/sndconfig

A sndconfig window is displayed, asking ask if you want to probe for Plug-and-Play cards. Press Enter to select OK.

If the utility finds a sound card that it recognizes, it displays the name of that card and asks if you want to configure it. If the sound card was detected, press Enter to select OK.

A message warns you that you are replacing the old /etc/conf.modules file.

Figure 8-1: The Audio Devices (redhat-config-soundcard) window detects your sound card. If the sound card still isn't detected, try the Sound Configuration Utility (you may need to install the sndconfig package from CD #3), as follows: Run the following command as root user from a Terminal window: # /usr/sbin/sndconfig

A sndconfig window is displayed, asking ask if you want to probe for Plug-and-Play cards. Press Enter to select OK.

If the utility finds a sound card that it recognizes, it displays the name of that card and asks if you want to configure it. If the sound card was detected, press Enter to select OK.

A message warns you that you are replacing the old /etc/conf.modules file.

Press Enter to select OK.

6. A message tells you that a sound sample will play to check if the card is configured properly. Press Enter to select OK.

7. You are asked if you heard the sound.

8. If you hear the sound, select Yes and skip to Step 12. Otherwise select No to continue.

9. You are asked to manually configure your sound card. Press Enter to select OK.

10. A list of sound cards is displayed. Select your card and press Enter to select OK.

11. Select OK to try the sound card again.

12. You are asked again if you were able to hear the sample. If you hear the sound, select Yes to continue. Otherwise select No to try a different card.

13. You are warned that a new /etc/modules.conf file is being created (and the old one is being backed up). Press Enter to select OK.

At this point, you can try playing some audio. Insert a CD and open one of the CD players described in the following section.

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