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Article ID: 4125
Last update: 10-26-04
Issue:
I can not get any audio CDs to play in my CD-ROM drive. How can I troubleshoot this?
Resolution:
If you are unable to play CDs in your CD-ROM drive, here are a few things you can check to correct the problem:

  • Check that your sound card is detected and working properly.

  • Check that the audio cable between your CD-ROM and sound card is connected. Red Hat Enterprise Linux does NOT support digital CD playback.

  • Check that the CD-ROM was detected when you booted the operating system. If your CD-ROM drive is an IDE drive type dmesg | grep ^hd. You should see messages that look like: 

     
hdc:  CD-ROM CDU701, ATAPI CDROM drive

    or 

     
hda: ATAPI 14X CD-ROM drive, 128kb cache

    The above results will vary with the type of CD-ROM that is detected.

  • If you see no indication of a CD-ROM drive, check that the power and the cables to the CD-ROM are connected. To make sure that the hardware is working, try booting to DOS (if available) and see if you can access the CD-ROM drive.

  • Try inserting a software CD. If you are running the GNOME or KDE desktop, a window should appear showing that the CD mounted by itself. If you do not see a window then try mount the cd manually by typing mount /mnt/cdrom from a command prompt. Then change to the /mnt/cdrom/ directory and list the contents with the ls command. This will tell you if the CD-ROM is accessible.

  • If you get the CD-ROM working but it fails with the message: 

     
CDROM device: Permission denied

    when you try and play music as a non-root user, the problem may be that /dev/cdrom (which is usually a link to the actual hardware device) is not readable by anyone but root. Type ls -l /dev/cdrom from the command line to see what the device is linked to. Then, as the root user, type chmod 644 /dev/cdrom to enable all users to read the CD-ROM and to enable the root user to write to it.


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