Choose Your Product
No Product SelectedSelect Product
Limitation of Microsoft Windows 7 controlling external display mode (Clone or Extended) on NVIDIA Optimus-based ThinkPads

This issue will occur on any NVIDIA Optimus-based ThinkPad where there is an external display connected to the ThinkPad and the user wants to control the display mode through the Microsoft Windows 7 operating system method (FN + F7 or "Windows Key" + "P") and it does not appear to be successful.


Affected configuration

The following ThinkPad system running Windows 7 configured may be affected by this symptom:

  • T-series ThinkPads with NVIDIA Optimus Graphics
  • T420, T420i
  • T420s, T420si
  • T430, T430i
  • T520, T520i
  • T530, T530i
  • W520
  • W530



To adjust the displays connected to the ThinkPad with NVIDIA Optimus, the user should utilize the NVIDIA graphics control panel.


Additional Information

These systems have two Graphics processors. One is called a Discrete Graphic processor and the other is called an Integrated Graphics processor. These processors are working together to control the graphic information and the display or displays being utilized which in this case is both the LCD and at least one external display. Some ThinkPads with NVIDIA Optimus can support more than one external display. Because this is a highly complex graphic system utilizing both graphic processors and displays the operating system, Microsoft Windows 7 is not aware of how NVIDIA Optimus is controlling the external display or displays and the LCD monitor. Microsoft Windows 7 operating system is unaware of the NVIDIA Optimus controls for displays.

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Country Availability
Alias ID : SF12-T0025
Document ID : HT073630
Legacy Document ID : SF12-T0025
Last Updated :
Copyright © Lenovo 2013, all rights reserved
Was this page helpful to you?YesNo

Select Task
Drivers & Software  
Guides & Manuals  
Diagnose & Fix  
Warranty & Services  

Support Help Index
Technical Specifications - PSREF
Driver Matrix
Newly Released Drivers (RSS)
KnowledgeBase Featured Articles
Community KnowledgeBase
Community Forums
Lenovo EMC
Windows 8 Support