There is no ffmpeg package in Ubuntu 14.04 LTS "Trusty Tahr". You're trying to install ffmpeg 4:0.5.9-0ubuntu0.10.04.3 from Ubuntu 10.04 LTS "Lucid Lynx" in trusty, so you should expect problems.
This problem does not exist in the ffmpeg package in Ubuntu 15.04 "Vivid Vervet". Thus this bug is invalid. ** Changed in: ffmpeg (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1458359 Title: package ffmpeg (not installed) failed to install/upgrade: trying to overwrite '/usr/share/man/man1/qt-faststart.1.gz', which is also in package libav-tools 6:9.18-0ubuntu0.14.04.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/1458359/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs