This bug report can be deleted. I discovered that the problem was in my audio hardware and not in Linux. Apparently one of my amplifiers broke and this event coincided with me installing Kubuntu. Bad luck, I'll say :)
This bug report can be deleted. I discovered that the problem was in my audio hardware and not in Linux. Apparently one of my amplifiers broke and this event coincided with me installing Kubuntu. Bad luck, I'll say :)