[ubuntu] No sound coming out of USB headset

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http://ubuntuforums.org – Hello. I have Ubuntu 9.10, and am trying to get my headset to work with it. It's a USB headset, not a bluetooth headset. Anyway, the input is working. I switched my input from my internal mic to my USB one in my sound settings, and that fixed that. However, even if I set my output device to the USB, it still doesn't work. Does anyone have any advice? It works on Windows. The headset is: Planet UP-100, Genius G-Talk Here's lsusb: Code: Bus 003 Device 002: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 003 Device 001: ID 1d6b:0001 Linux Found (Hardware)