Hi guys, Hope you'al can help me out here? I am working on a project that will use an external USB sound card under Linux. After much effort, I have gotten the device to work completely under Ubuntu. Which is where I really need it to work. Unfortunately, my development system is running FC6 and during all my testing I have mis configured my ALSA to the point that I can no longer record from the USB input. Playback works fine on both. This is how I am testing the device: arecord - -D plughw:1,0 | aplay - -D plughw:1 which works on a standard Ubuntu installed system on the same hardware. On the FC6 system all I get is 'dead air'. /* ---------------------------------------------------- */ My output from the FC6 system is: This from dmesg: ohci_hcd 0000:00:13.1: auto-wakeup usb 2-1: new full speed USB device using ohci_hcd and address 3 usb 2-1: configuration #1 chosen from 1 choice input: USB Audio as /class/input/input4 input: USB HID v1.00 Device [USB Audio] on usb-0000:00:13.1-1 [root]$ lsusb Bus 001 Device 001: ID 0000:0000 Bus 002 Device 003: ID 0d8c:0006 C-Media Electronics, Inc. Bus 002 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 [root]$ arecord --version arecord: version 1.0.15rc1 by Jaroslav Kysela <perex(a)suse.cz> [root]$ arecord -l **** List of CAPTURE Hardware Devices **** card 0: A5451 [ALI 5451], device 0: ALI 5451 [ALI 5451] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Audio [USB Audio], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 [root]$ arecord -L default:CARD=A5451 ALI 5451, ALI 5451 Default Audio Device null Discard all samples (playback) or generate zero samples (capture) default:CARD=Audio USB Audio, USB Audio Default Audio Device /* --------------------------------------------------- */ I am certain that it is something I have done but unaware of what it is? I am at a loss. Is there a way to return to the default sound setup? Any ideas suggestions? Thanks for your time. -- William Estrada MrUmunhum(a)popdial.com Mt-Umunhum-Wireless.net ( http://Mt-Umunhum-Wireless.net ) Ymessenger: MrUmunhum