I made some debugging about this issue. It is due to the action names in the .desktop file not corresponding to the DBus actions of totem, plus the mute action isn't among the one implemented in totem.
I made a patch to fix the names and add the mute action to totem. This is my first contribution to Ubuntu so please tell me if there's something wrong. Tested under Ubuntu 18.04 and 18.10 ** Patch added: "1-3.26.0-0ubuntu6.2.debdiff" https://bugs.launchpad.net/ubuntu/+source/totem/+bug/1726688/+attachment/5228010/+files/1-3.26.0-0ubuntu6.2.debdiff -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to totem in Ubuntu. https://bugs.launchpad.net/bugs/1726688 Title: totem media player in the Ubuntu dock right click menu does not work, rewind does not work, nor full screen works Status in totem package in Ubuntu: Confirmed Bug description: totem media player in the Ubuntu dock right click menu does not work, rewind does not work, nor full screen works. I'm completely aware that there is a similar bug report of Ubuntu DBUS PlayPause() Function. However it is no longer just Play and Pause anymore. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: totem 3.26.0-0ubuntu1 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Oct 24 12:22:01 2017 ExecutablePath: /usr/bin/totem InstallationDate: Installed on 2017-10-19 (4 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) ProcEnviron: LANGUAGE=en_PH:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_PH.UTF-8 SHELL=/bin/bash SourcePackage: totem UpgradeStatus: No upgrade log present (probably fresh install) XorgLog: Error: [Errno 2] No such file or directory: '/var/log/Xorg.0.log' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/totem/+bug/1726688/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

