This should now be fixed:
https://launchpad.net/ubuntu/precise/+source/linux/3.2.0-10.17
* [Config] Disable CONFIG_INTEL_IOMMU_DEFAULT_ON
This should now be fixed:
https:/ /launchpad. net/ubuntu/ precise/ +source/ linux/3. 2.0-10. 17
* [Config] Disable CONFIG_ INTEL_IOMMU_ DEFAULT_ ON