Ubuntu – Ubuntu volume control slider moves strangely


I have a really strange problem with the volume control of Ubuntu 14.04. When I move the slider it jumps from side to side and does not follow my mouse pointer. When I remove my mouse pointer from the volume slider, it moves itself randomly.

Eventually I realised that the problem occurs when I install the Ubuntu SDK. I have no idea how to fix it. I searched all over the internet for a solution, but nothing helped. I don't want to uninstall the Ubuntu SDK because I want to write programs with it.

I recorded a video of the strange problem – it is here.

Best Answer

Use synaptic and mark "for complete removal"! indicator -sound and all unity8-* and all libmir* packages. Apply the changes.... then sudo apt-get --purge autoremove, then reboot, then install indicator-sound then reboot. And it works correctly. (next unity-control-center for valid control panel view)

Source: Marat solutions from bug report link provided by @python