HD3000 + Multi Monitor

[jschwartzbeck]

Will the integrated HD3000 graphics adapter in the new t420/t520 sandy bridge models be capable of driving two 1920x1080 external monitors when plugged into the mini dock?  If so, is the laptop's screen still enabled to act as a third monitor?

[lead_org Microsoft MVP Contributor]

If you want more than 2 monitors support then get the optimus equipped version of thinkpads.

The intel only model can drive only two monitors one at WQXGA resolution through the displayport, basically it will support the resolution that you want, but your internal LCD will be turned off.