cmedia usb audio card and hdmi

I have a beaglebone black that I want to use for multimedia. Is there any way to use the HDMI video and a usb cmedia card together.?
All of the instuctions say to disable the HDMI (audio) via the uEnv.txt file however, when you do this you also shut off the hdmi video also. How can I use the C-media audio out card without shutting off the HDMI video.