I have installed the wonderful XMoto game in my Ubuntu 11.04 (2.6.38-8-generic) and when I start the game my sound control became crazy. The sounds decreases and increases randomly. If I close the game this strange behavior still continues.
Well, I think this isn't a problem with Ubuntu, Gnome, KDE at all because in my older installations (Ubuntu 10.04 and 10.10) the same thing happen. But I don't know how to solve it.
My Audio device is (lspci | grep Audio):
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
My sounds is ok for other things, I can hear several things at the same time, etc.
So, anyone knows how to solve this problem?