This looks like a duplicate of the following bug: https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/967161
I am having the same issue on a Samsung np530 (Series 5 Ultrabook) with i5 processor.
This looks like a duplicate of the following bug: /bugs.launchpad .net/ubuntu/ +source/ acpi/+bug/ 967161
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I am having the same issue on a Samsung np530 (Series 5 Ultrabook) with i5 processor.