The most likely cause of this is that gnome-settings-daemon no longer supports media keys.
You can restore functionality with gnome-fallback-media-keys-helper, but it's only packaged for Zorin OS: https://launchpad.net/~zorin- os/+archive/ubuntu/packages/+sourcepub/3778150/+listing-archive-extra -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1248368 Title: Volume up/down keyboard keys stoped working after gnome-settings- daemon package update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1248368/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs