Red Hat Bugzilla – Bug 473393
kscd plays cds, but no sound
Last modified: 2008-11-29 01:16:06 EST
Description of problem:
starting kscd, configuring it for some cd drives and then play some music cd: a player panel is shows, the tracks are played, but no sound. The soundcard is OK! (system-config-sound produces correct sounds).
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.start kscd with an inserted music cd
panel is shown but nothing to hear
I hear music
Independent from desktop: both kde and gnome have this problem
Analog playback (direct playback) only works if you have an audio cable plugged between the CD/DVD drive and the sound card. Unfortunately, many PC manufacturers neglect doing so (either to save costs or just out of laziness). In addition, the CD sound may be muted in the ALSA settings - use KMix to check and possibly fix the setting. But of course unmuting it there only has an effect if the cable is plugged in the first place.
You can configure Kscd to use digital playback (i.e. digital audio extraction and playback by the CPU) instead (in the preferences). The drawback is that it consumes more CPU power and that, depending on the drive, it may cause more problems with copy protection, the advantage is that it works even with broken setups.
And note that KDE 4.2 has a new Kscd which currently only supports digital playback, so you will not encounter this issue in KDE 4.2.
Good to know. Switching to CPU supported playing indeed plays the sound, so my problem is solved.