Sound from games won't play

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http://forums.fedoraforum.org – Fedora 19 KDE X86-64 I have a Nvidia GTX 650Ti with HDMI out. The video redirects fine, however- sound will only play out of my computer speakers. When I choose for all audio to come out of my TV, the test sound plays fine; but sounds from my games (SuperTuxKart, Pingus, SMC) are silent. Proprietary driver from rpm fusion (HowTos)