[kubuntu] No sound on HDMI output

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http://ubuntuforums.org – This has been a recurring problem for me on kubuntu. I connect my HP G62 laptop to an external HDTV via HDMI. I am able to watch films (albeit with a cropped screen) but cannot get any sound. If I go into sound settings, there are no devices listed for HDMI. In the past I have had to install pulseaudio volume control to make it work but it seems ridiculous to me to have to go that route. Surely this should just work? I have tried with 3 different TV's and on another (ACER) laptop with different sound hardware and still no luck. Of course, if I boot into Windows 7 this just works w (Hardware)