oem@oem-desktop:~$ dmesg | grep "intel_idle"
[ 0.480726] intel_idle: MWAIT substates: 0x20
[ 0.480728] intel_idle: does not run on family 6 model 23
oem@oem-desktop:~$ uname -a
Linux oem-desktop 2.6.38-1-generic-pae #28-Ubuntu SMP Fri Jan 28 16:56:46 UTC 2011 i686 i686 i386 GNU/Linux
this issue is not fixed on natty:
oem@oem-desktop:~$ dmesg | grep "intel_idle" 1-generic- pae #28-Ubuntu SMP Fri Jan 28 16:56:46 UTC 2011 i686 i686 i386 GNU/Linux
[ 0.480726] intel_idle: MWAIT substates: 0x20
[ 0.480728] intel_idle: does not run on family 6 model 23
oem@oem-desktop:~$ uname -a
Linux oem-desktop 2.6.38-