No sound output through HDMI - Intel HD Audio

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http://forums.fedoraforum.org – I have an Asus u56 laptop, and I get picture out through the HDMI connection just fine, but I only get sound through the laptop itself. I'm running F19 with MATE, and I've looked all over for some more advanced system sound configurations, but MATE Volume Control and alsamixer don't really help. This is what I get from running aplay -l, and aplay -L: Code: [ergoproxy@localhost ~]$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]   Subdevices: 0/1   Subdevice #0: subdevice #0 card 0: PCH [HDA (HowTos)