I suspect this bug is the same, or related to, a problem that happened with my install of Kubuntu 12.04 beta2: After Kubuntu was freshly installed, my keyboard volume control keys would not work, even though sound would play and when the keys were pressed the pop-up notification and the panel widget would display the change.
After wasting time reading about how to find various types of audio bugs, and then relearning that HDMI is for output (I've never used it), I finally realized that the problem was simply that KMix had chosen my HDMI as the "master channel" and I needed to change it to my built-in audio.
If this bug is related to my problem, it will be great if it will be fixed soon, because I can imagine unsavvy users giving up on KDE when they can't discover how to fix the problem before their patience expires.
I suspect this bug is the same, or related to, a problem that happened with my install of Kubuntu 12.04 beta2: After Kubuntu was freshly installed, my keyboard volume control keys would not work, even though sound would play and when the keys were pressed the pop-up notification and the panel widget would display the change.
After wasting time reading about how to find various types of audio bugs, and then relearning that HDMI is for output (I've never used it), I finally realized that the problem was simply that KMix had chosen my HDMI as the "master channel" and I needed to change it to my built-in audio.
If this bug is related to my problem, it will be great if it will be fixed soon, because I can imagine unsavvy users giving up on KDE when they can't discover how to fix the problem before their patience expires.