X.org XServer - ATI gfx chipset driver

Comment 11 for bug 879790

I have the same choppy sound problem but on Kubuntu. It showed up after upgrade from Kubuntu 10.10 to 11.04 and is still present in 11.10. The machine is IBM ThinkPad T60 with ATI X1400.

I think this is result of bug https://bugs.freedesktop.org/show_bug.cgi?id=28106