I assume from your information that you just upgraded to the latest Ubuntu Studio release (15.10). Can you confirm?
It would be easier if you used ubuntu-bug to report bugs as it automatically attaches all this information (versions etc.) to the bug: https://wiki.ubuntu.com/ReportingBugs ** Changed in: libav (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libav in Ubuntu. https://bugs.launchpad.net/bugs/1509632 Title: libav dev and extra package are not co-installable Status in libav package in Ubuntu: Incomplete Bug description: once again libavcodec-dev depends on libavcodec-ffmpeg56 but does not allow libavcodec-ffmpeg-extra56 which is a dependency from UbuntuStudo-audio (it should have a OR dependency) that result in the situation where you can either develop or hear sound but not both the bug does happen before and again but it seems it does happen again with each Ubuntu release To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libav/+bug/1509632/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
