Thanks for your reply madbiologist. Yes, I think you are correct. I've been checking all the audio channels and in fact I do expect a 5.1 upmix, whereas I get a 5.0 upmix (from a stereo audio file)(Note this is an erratum in my first post). But when checking other applications indeed the upmix happens there aswell, also to 5.0 upmix level.
When re-setting this 5.1 setting by hand in Totem (via preferences) the upmix works correct. I've not been able to perform the same check on Rhythmbox since there's no setting for audio. I guess this bugticket can be closed as it seems to be a problem with pulseaudio or deeper (alsa?) -- Totem uses Stereo sound while set at 5.1 https://bugs.launchpad.net/bugs/674730 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to totem in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs