This document provides help for installing and configuring sound support with Red Hat Linux 6.0 using the integrated Crystal audio chip on Dell OptiPlex GX1 or GX1p systems and Dell Precision WorkStation 210, 410, or 610 systems. These Dell systems have the integrated sound subsystems preconfigured in the factory if the system is ordered with Red Hat Linux 6.0 installed.

The system boards of OptiPlex GX1 and GX1p systems have an integrated 16-bit Crystal 4236B audio controller chip. The system boards of WorkStation 210, 410, and 610 systems have an integrated 16-bit Crystal 4237B audio controller chip. All systems have connectors on the back panel for connecting the computer to external audio devices such as speakers, headphones, and a microphone. The controller supports all sound functions contained on the Sound Blaster Pro expansion card from Creative Laboratories, Inc.

Red Hat Linux 6.0 includes the CS4232 driver in the Linux 2.2 kernel, which supports both the 4236B and 4237B sound chips.

Setting Up Sound

1. Login as root.
2. When using the GNOME or KDE Desktop environment (default from Dell), click the Terminal icon on the Task Bar to launch a command line window.
3. Type sndconfig and press the <Enter> key.
4. Click OK to have sndconfig probe for your sound card.
   
   NOTE: The sndconfig program may identify the CS4237B audio controller chip as a CS4236B.
   
   
5. Sndconfig should present the following message:
   
   A PnP sound card was found in your system.
   
   If you receive a different message, you may have the sound adapter disabled in the System Setup, or you may have a different model of Dell computer. Refer to the Troubleshooting section, below.
6. Click OK.
   
   NOTE: If you receive a message that the file /etc/isapnp.conf already exists, click OK.
   
   
7. Click OK and listen for the test sound.
8. If you are able to hear the sound, click YES and continue to step 9.
   If not, click NO, and then click Cancel; refer to the Troubleshooting section, below.
9. Click OK and listen for the MIDI sample.
10. If you are able to hear the MIDI sample, click YES.
    If not, click NO, and then click Cancel; refer to the Troubleshooting section, below.

Troubleshooting

• If the sndconfig program cannot find your sound card, check the BIOS setup screen and ensure that sound is enabled.
• Make sure that your speakers are turned on, the volume is turned up to an audible level, and the cable for the speakers is connected to the output jack on the back of your computer (usually green).
• You may be able to hear the sound sample, but receive an error when you try to play the MIDI sample. If this happens, cancel out of sndconfig and then run it again.