It was the volume control on gnome-cd.
As you advised, I tried xmms from terminal and it worked fine. The problem was the gnome-cd autoplayed with volume down to zero (silly me, I didn't realize that at that moment).
thank you very much for saving me alot of time searching archives again.
if you still have the problem, get a "cdrom audio cable" (cost me $2.99 + tax at compusa), connect the cdrom to your sound card (or motherbord, depending on your machine's configuration), and hopefully that will work for you too.
If you are interested in what's going on behind all this, here are the things that I've learned by searching archives of this forum(most of the words are quoted):
1. cdroms can send the sound signals directly to a sound card without wasting cpu cycles,
2. some os's (notably windows) are playing sounds off the media using software, which wastes handsome amount of cpu cycles.
3. this is also the reason that machines preloaded with such os play audio cds without any problem even though they don't have the cables,
4. many computer manufacturers don't put audio cables on their system to save few pennies, since it works anyway with preloaded os,
4. linux doesn't natively support software decoding
5. so, if your machine is one of those from such manufacturers, you need to buy and install the cable yourself.
Again, many thanks to Zac...
Last edited by theseven; 07-02-2003 at 10:22 PM.