Ubuntu 14.04 - Optical output on HT Omega Claro Halo sound card doesn't work

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http://askubuntu.com – I'm relatively new to Linux. I'm trying to get 64-bit Ubuntu 14.04 to work with my hardware. My HT Omega Claro Halo soundcard is recognized and the analog output works. The optical output appears as a choice in the "Sound" dialog box, but when I choose it "Sound" produces the analog output. For example, if I run a Speaker test in the "Sound" dialog for the "Digital output (S/PDIF) CLARO halo", the test box pops up, but it is titled, "Speaker testing for CLARO halo Analog Stereo." (I'd post a screenshot, but I can't seem to copy the image into this text.) The test produces no sound through the (HowTos)