Thin Client T630 not displaying on older Dell monitor

[Jewell91]

I'll start this off by saying I have only been working with the HP Thin Clients for a few weeks so far and have fought through most of my issues with imaging from our HPDM server. 

My latest issue is something I haven't had any success with, so I am here hoping to gain some help !

I have a combination of T620 and T630 Thin Clients running Windows 7 embedded. Since Windows 7 is out of life end of the year, I am trying to get all of our Thin Clients onto the latest Thin Pro OS. I have had no troubles with the Thin Po 7 and 7.1 versions and they are displaying and working well with all of our monitor and other peripherals. 

When I started creating my image for the Thin Pro 7 and 7.1 versions on the T630 I have run into an issue where these two OS versions will not display on my older Dell monitors (Model # Dell P2213F) When I load the older Thin Pro Os (v6.2) or the windows 7 embedded, I can see my display on the monitors. Also, when I connect my newer and older versions of Thin Pro OS to my newer Dell monitors, they work and display fine.

The last detail that really narrows this down is the fact that when I take my T630 on a new OS 7 or 7.1 (the main issue) and connect it to an old monitor using VGA instead of DP (Which I have been using in every combination of monitor/Thin client) it works. Seems that the display port to the older Dell monitor, form the newer version of Thin Pro on the T630 is where I am facing my issue.

So as you can see, I have narrowed my issue down quite a bit to the fact that my T630, running Thin Pro 7 or 7.1 will not work with display port connection on the Dell P2213F. When I connect this same machine to a Dell P2217 with DP or VGA, it works fine. I have tried changing resolutions on the OS but it does not help.

Can anyone provide me with another possible solution to this? Or make sense of it for me? I have not been able to find any display drivers for these Thin Pro OS's

Thanks,

Matt