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Cannot use Triple Display Configuration using two DVI digital ports for Microsoft Windows 7 and 8 – ThinkPad L430, T430s, T430si, T431s

Some ThinkPad systems cannot use Triple Display Configuration when using two DVI digital ports.

  • First Display:  Active ThinkPad Display
  • Second and Third Displays:  Connected to DVI digital ports on ThinkPad Mini Dock Plus

The Triple Display Configuration will work correctly when using two DisplayPorts.  The use of DP to DVI dongles is not a viable solution.The DisplayPortcables must be straight DP to DP connections.


Affected configuration

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

  • ThinkPad

Affected systems:

  • L430
  • T430s
  • T430si
  • T431s

System is configured with:

  • Mini Dock Plus

Operating Systems:

  • Microsoft Windows 7
  • Microsoft Windows 8



To enable three displays on these machines, the configuration should be one of the following below:

  1. DisplayPort + DisplayPort + LCD
  2. DisplayPort + DisplayPort + VGA
  3. DisplayPort + DisplayPort + DVI (one DisplayPort is connected to system mini-DisplayPort port)
  4. DisplayPort + DisplayPort + DisplayPort (one DisplayPort is connected to system mini-DisplayPort port)
  5. See the picture below to verify that Intel Control Panel applet detects 3 monitors and 2 of the monitors are listed as Digital Displays.  The use of DP to DVI dongles is not a supported alternative to using DP to DP cables.



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Alias ID : SF12-T0040
Document ID : HT074304
Legacy Document ID : SF12-T0040
Last Updated :
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