Default gnome-volume-manager preferences use "totem %d" for playing DVDs, but this command doesn't work because gentoo builds totem with gstreamer backend. Then "totem dvd://%d" must be used instead for playing DVDs I attach a patch for correcting this Thanks a lot Reproducible: Always
Created attachment 137536 [details, diff] gnome-volume-manager_totem-dvd.patch
Thanks, I've added the patch. It won't, of course, affect existing installs, but will fix new ones.