That bug seems old & ignored. What works here is to install gstreamer1.0-packagekit, then -
$ totem '/home/doug/Videos/amostviolentyear-clip1_h1080p.mov' ** Message: Missing plugin: gstreamer|1.0|totem|MPEG-4 AAC decoder|decoder-audio/mpeg, mpegversion=(int)4, level=(string)2, base-profile=(string)lc, profile=(string)lc (MPEG-4 AAC decoder) ** Message: Missing plugin: gstreamer|1.0|totem|H.264 (Main Profile) decoder|decoder-video/x-h264, level=(string)4, profile=(string)main, colorimetry=(string)bt709 (H.264 (Main Profile) decoder) ** Message: PackageKit: xid = 46137359 ** Message: PackageKit: desktop_id = org.gnome.Totem.desktop ** Message: PackageKit: Codec nice name: MPEG-4 AAC decoder ** Message: PackageKit: ignoring field named level ** Message: PackageKit: ignoring field named base-profile ** Message: PackageKit: ignoring field named profile ** Message: PackageKit: field is: mpegversion, type: gint ** Message: PackageKit: structure: gstreamer1(decoder-audio/mpeg)(mpegversion=4)()(64bit) ** Message: PackageKit: Codec nice name: H.264 (Main Profile) decoder ** Message: PackageKit: ignoring field named level ** Message: PackageKit: ignoring field named profile ** Message: PackageKit: ignoring field named colorimetry ** Message: PackageKit: structure: gstreamer1(decoder-video/x-h264)()(64bit) ** Message: Missing plugins installed. Updating plugin registry ... In this case picking the libav plugin allows subsequent playback of that file. When gnome software opens there is a warning - "Sorry, something went wrong You need app-install-data package to be able to look for applications that can handle this kind of file" That seem irrelevant.. Is there some script in this gst package that is missing from gnome- software install? ** Summary changed: - Installation of missing plugins/codecs fails or Why isn't gstreamer1.0-packagekit on default image? + Installation of missing plugins/codecs fails or is gstreamer1.0-packagekit what's needed? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1712979 Title: Installation of missing plugins/codecs fails or is gstreamer1.0-packagekit what's needed? To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-software/+bug/1712979/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs