SuSE Linux: All versions
Your sound card is correctly configured but you can't here anything when playing an audio CD.
There are two possible causes for this problem:
First check if the CD device is muted in the sound mixer (e.g. kmix) settings. A muted device would have a red instead of a green light. Also the volume slider for this device should be up.
Please also note that the CD player program itself might have it's own volume control.
In very rare cases it can happen that the CD device is controlled with another slider in the mixer. To make sure this is not the case with your setup, please try them all one by one.
If your speakers still don't give any sound from your audio CDs then it will be due to a missing kabel connector between the CD-ROM drive and the sound card. This is not bad, but some (most) audio CD players rely on it.
In this case you may want to use the player XMMS (package xmms out of series snd). Once installed you will find it in the K-Menu under:
In XMMS you simply load the file /dev/cdrom and start the playback. You may need to give all users read permissions to the apropriate device file in order to have this feature not only for user root.