sorry, misclicked to make it answered, but still the probem is not resolved
The configuration you need to have triple display with the Intel® HD 4000 is the following:
You can get this information at the following Link:
It is a must to have two DP or mDP ports when using HD 4000. We always recommend using straight connection to avoid any problem during the configuration.
thank you for your response.
Still I do not understand, if I open your link (Graphics Drivers — Configuration 3-Displays FAQ), go to "What three independent display configurations are supported?", then I chose "View information for Intel HD 4000 graphics..." and there is "View a comprehensive table of supported configurations and notes"
there are not only one configuration you described but three:
Active Display 1 Active Display 2 Active Display 3 DisplayPort* DisplayPort HDMI* or DVI or VGA or DisplayPort or Built-in Display2 DisplayPort or HDMI or DVI or VGA DisplayPort or HDMI or DVI or VGA Built-in Display3 DisplayPort or HDMI or DVI or VGA or Built-in Display2 DisplayPort or HDMI or DVI or VGA Intel® Wireless Display (Intel® WiDi)
as far as I understand I satisfy all preconditions for the second configuration. Can you please advise if this is correct ?
We will modify the information to make it clearer and easy to understand. For now here is the key for HD 4000 on triple display configuration:
• If two of the displays are DisplayPort* monitors
• If one of the displays is an Intel® Wireless Display (Intel® WiDi)
• If the built-in display is an Embedded DisplayPort1 (eDP)
I am sorry for the confusion with the page but It will modified soon.