Hooking up an external monitor to a laptop with a broken LCD screen

Quote:

I have a thinkpad t400s with Windows XP, that has a completely broken lcd screen but otherwise fully functional motherboard. I also have a dell monitor, and a dsub connector that used to work fine as a replacement for the broken lcd laptop screen. For some odd reason, I accidentally reset the bios to factory defaults and now the Thinkpad wont link up or even recognize the external monitor. And since the laptop screen is broken, I cant re-access (well, technically speaking, see) the bios menu so I dont know how to fix. Help!

You can try out the below workaround here:

First try using different connector or connect the dell monitor using a hdmi cable and see if it is making any difference.
If that does not help then you can try connecting thinkpad t400s to another monitor and see if it is recognizing the external monitor or not.