I can't imagine that Ubuntu freezing is an ffmpeg bug. I guess you meant to file a bug against linux, so I'm reassigning this bug there.
But for this bug report to be useful you have to provide more information, at least excerpts of /var/log/syslog from the time, when the freezing happens. ** Package changed: ffmpeg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1514233 Title: Ubuntu 15.10 freezes during operation. Status in linux package in Ubuntu: Incomplete Bug description: Ubuntu freezes during video playback operation when window opened MAXIMISED. The freeze occurs with Firefox 42.0, VideoLAN or Totem Movie Player, DOES NOT occur if window playing video is resized to anything but maximised. It just freezes occasionally since upgrade. Upgrade to wild wily. ProblemType: Package DistroRelease: Ubuntu 15.10 Uname: Linux 4.2.0-17-generic x86_64 Architecture: amd64 UpgradeStatus: Upgraded to wily on 2015-11-06 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514233/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
