As already said here:
https://launchpad.net/distros/ubuntu/+source/kubuntu-meta/+bug/47655
I have exactly the same problem using:
00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
High Definition Audio Controller (rev 03)
Subsystem: IBM Unknown device 05b7
Flags: bus master, fast devsel, latency 0, IRQ 169
Memory at b0000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Capabilities: [70] Express Unknown type IRQ 0
Capabilities: [100] Virtual Channel
Capabilities: [130] Unknown (5)
On an IBM Z60m in Edgy.
--
Sound server fatal error: cpu overload, aborting
https://launchpad.net/bugs/66982
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