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12.10 no audio via hdmi and video speeds up

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http://askubuntu.com – I have a laptop with an ati radeon 4200, on 12.04 everything worked fine, since upgrading to 12.10 I cannot get sound over the hdmi. When I switch to hdmi audio the video speeds up to about 2x. I can use the speakers in my laptop and watch video via hdmi with no problems. Things I have tried: Various tutorials to install the amd/ati drivers, all of which resulted in low graphics mode... Checked that everything is properly set in aslamixer, the sound utility and installed Pavucontrol and checked everything in there. Verified the output from "cat /proc/asound/cards" looks normal When I in (HowTos)