I can confirm that. Choosing other audio output than HDMI immediately makes video playback normal. It is strange that removing the "radeon.audio=1" parameter and updating GRUB, still after reboot Pulseaudio shows HDMI audio output even though it is disabled by default as far as I know.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1239233 Title: Video playback is like fast forward in 13.10 when radeon HDMI audio output is enabled (but no sound at all) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1239233/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs