I have the same problem. Using Ubuntu Studio 15.04 64bit. HDMI sound (NVidia). Sound works fine. Volume and mute keys show the graphic image in top right of screen when pressed but they are not actually linked to the audio played. Sound level doesn't change.
Kind of annoying... Thanks -- 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
