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6 Posts

06-07-2020

Singapore

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Can I switch display adapter from intel to NVIDIA on T420

2020-12-27, 2:57 AM

Hi,

 

My T420 come with intel HD graphics 3000 and NVIDIA NVS 4200M. Is it posible to switch the display adapter from intel to NVIDIA?

somehow the display setting only show intel although device manager show both display adaptor.

 

Thank you

 

Regards

Robertus

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4281 Posts

12-11-2015

United States of America

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Re:Can I switch display adapter from intel to NVIDIA on T420

2020-12-27, 5:21 AM

On some systems (not sure on the T420) you have the option in the BIOS >> Config to change the graphics from Nvidia Optimus (integrated and discrete on demand), Integrated Graphics (Intel), or Discrete (Nvidia)     

 

If set to Nvidia Optimus, the system will uses the Integrated Graphics, but will switch to the Discrete Nvidia when needed, and that function can be controlled to some degree via the Nvidia Control Panel.

 

Regards,

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4281 Posts

12-11-2015

United States of America

4551 Signins

51852 Page Views

  • Posts: 4281
  • Registered: ‎12-11-2015
  • Location: United States of America
  • Views: 51852
  • Message 2 of 4

Re:Can I switch display adapter from intel to NVIDIA on T420

2020-12-27, 5:21 AM

On some systems (not sure on the T420) you have the option in the BIOS >> Config to change the graphics from Nvidia Optimus (integrated and discrete on demand), Integrated Graphics (Intel), or Discrete (Nvidia)     

 

If set to Nvidia Optimus, the system will uses the Integrated Graphics, but will switch to the Discrete Nvidia when needed, and that function can be controlled to some degree via the Nvidia Control Panel.

 

Regards,

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6 Posts

06-07-2020

Singapore

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  • Posts: 6
  • Registered: ‎06-07-2020
  • Location: Singapore
  • Views: 70
  • Message 3 of 4

Re:Can I switch display adapter from intel to NVIDIA on T420

2020-12-28, 2:07 AM

Ah... so that what it mean. I saw those setting on BIOS but the dicription is missleading. I set to NVIDIA optimus because that the only selection that have NVIDIA word on it. I though that how to enable NVIDIA because "Integrated" and "Discrete" does not have NVIDIA word on it.

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6 Posts

06-07-2020

Singapore

7 Signins

70 Page Views

  • Posts: 6
  • Registered: ‎06-07-2020
  • Location: Singapore
  • Views: 70
  • Message 4 of 4

Re:Can I switch display adapter from intel to NVIDIA on T420

2020-12-28, 2:56 AM

Also I think I need to disable the NVIDIA optimus auto detection at BIOS. Otherwise it will automatically change setting to NVIDIA optimus once detected that OS can support

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