i got a VGA to HDMI active converter so can boot in (albeit with yellow colors) so am all good now
Can someone with a T440 let me know the sequence of keystrokes needed to go from power on > enter BIOS > Integrated Devices details > Disabled (and confirm of prompt) > Save and Exit / reboot  ?  as per page 15:  [URL] Would appreciate it - I don't have a VGA display handy at the moment to enter BIOS and set this; I already have a Quadro 2000 installed which has DisplayPort cable from my current monitor to it. 
T440 - what is the keystroke sequence to enable PCI graphics card headlessly