This appears to be a potentially related, but apparently different bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/818830
The person who posted comment #10 (Eric Liang) on that bug seems to actually be experiencing this bug. He is also using an X220 with a Sandy Bridge processor.
This appears to be a potentially related, but apparently different bug: https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/818830
The person who posted comment #10 (Eric Liang) on that bug seems to actually be experiencing this bug. He is also using an X220 with a Sandy Bridge processor.