12-16-2014, 09:44 AM
I am not quite sure if this is what you are asking for?
But you can manually select a resolution beyond what is detected.
https://wiki.ubuntu.com/X/Config/Resolution
The dell could have UPP issues with 915L. I have seen a GMA 950 (Dell Inspiron 1504) as it happen there was a bug in dell's hardware specs that required a driver to detect the external displays (on top of that you had to install Dell's drivers you could not use Intel's).
Have you tried using a different Monitor on the Dell to see if the VGA/DVI port detects the monitor?
As you said you did use the Samsung on a different box. With good results.
But you can manually select a resolution beyond what is detected.
https://wiki.ubuntu.com/X/Config/Resolution
The dell could have UPP issues with 915L. I have seen a GMA 950 (Dell Inspiron 1504) as it happen there was a bug in dell's hardware specs that required a driver to detect the external displays (on top of that you had to install Dell's drivers you could not use Intel's).
Have you tried using a different Monitor on the Dell to see if the VGA/DVI port detects the monitor?
As you said you did use the Samsung on a different box. With good results.