hypothesis: karmic's version of openal is the problem
workaround 1: echo 'drivers = alsa,oss,solaris,dsound,winmm,port,wave'
> ~/.alsoftrc
(back up your old .alsoftrc if you have one)
restart
workaround 2:
compile blender with WITH_BF_OPENAL = 'false'
I have only tried workaround 1. So far no more 100% CPU. But
since I never could dependably reproduce it all this needs further
testing.
** Package changed: xorg (Ubuntu) => openal (Ubuntu)
** Changed in: openal (Ubuntu)
Status: Invalid => Incomplete
** Tags added: verification-needed
--
blender 2.5 regression - cpu flatlines at 100% on default scene
https://bugs.launchpad.net/bugs/472687
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