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ThinkPad Twist touchscreen stops working with Lenovo AC/DC Combo adapter

Symptom

The ThinkPad Twist's touchscreen may become unresponsive or stop working when the machine is being powered by the Lenovo 90W Ultraslim AC/DC Combo Adapter.

Affected configurations

The above symptom is associated with, but not limited to, the following systems:

  • All ThinkPad Twist models

The system is configured with:

  • Lenovo 90W Ultraslim AC/DC Combo Adapter (part number 41R4493)

Applies to:

  • All Operating Systems
Solution

The Lenovo 90W Ultraslim AC/DC Combo Adapter is not supported with the ThinkPad Twist and should not be used.