I could only use my volume keys when I clicked the sound indicator in the Unity top bar. My global volume keys were not working.
The issue for me was that the gsettings values inside org.gnome .settings-daemon.plugins were missing the "XF86" part of the string, e.g. "AudioRaiseVolume" instead of "XF86AudioRaiseVolume". Solution was described here: http://askubuntu.com/questions/451842 /after-upgrading-to-ubuntu-14-04-my-shortcuts-keys-and-media-keys-no- longer-work Temporary fix: gsettings get org.gnome.settings-daemon.plugins.media-keys volume-up 'XF86AudioRaiseVolume' and other media keys as appropriate. or navigate to the appropriate setting in dconf-editor and fix the string. Proposed: This issue is caused by the Keyboard Shortcuts menu in the Unity panel not keeping the "XF86" part of the string. If I go into the menu, and assign a keyboard shortcut via pressing the media key when it asks, the "XF86" will be left out in the proper gsettings. Having gnome-shell installed may be a factor in this bug. Fixing the gsettings strings as written by the Keyboard Shortcuts menu is the proposed fix. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1450600 Title: Multimedia keys (volume up/down, brightness etc.) stop working after upgrading to 15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1450600/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs