Comment 4 for bug 951049

@Amber, can you next try:

I understand you did a recent upgrade from Oneiric to Precise. It would be useful if we can see if this issue occurs running Precise but with the older Oneiric kernels. If you can boot your machine and press shift down at boot time to get the one grub boot menu and then select the previous Oneiric kernel (3.0.0-x) kernel and boot with this. Don't do anything with the thinkpad_acpi driver and use this kernel for the rest of the day.

Please let me know if the machine overheads with the Oneiric kernel.

Thanks!