[Alsa-user] USB Sound Devices vs. On-Board Audio

I have a case where an Centos 5.2 O/S on an Intel Atom motherboard properly recognizes the on-board Intel sound system. If I hot plug in 4 USB sound devices they are configured and work. But if I boot the system with the 4 USB sound devices attached, they are configured but the on-board Intel soun

Re: [Alsa-user] fallback mechanism in asound.conf/.asoundrc

Perhaps you have the same issue I recently asked about. I have several Centos 5.2 servers with either one or several USB sound devices attached. Often they would not boot and recognize the on-board audio system. The solution that works for me is to add the line "blacklist snd-usb-audio" to "/etc/