pGFX Graphics Driver for the Intel® Server Board S1200SPL/R
What am I seeing?
The Windows* generic video driver has a limited video resolution.
How to fix it
Download and install the respective video driver for the platform/processor and the operating system in use.
Below is a comparison chart based on the release notes for both driver packages that are available.
Therefore:
What if this process doesn't work?
Try to still use the Windows generic video drivers.