with Intel iGPUs and using Tianocore UEFI payload, Linux is fine regardless if the display is initialized or not by GOP driver.  Windows is fine as long as valid VBT data has been loaded into the Intel ACPI OpRegion, and the OpRegion is valid/has been fully populated.

On Thu, Aug 30, 2018 at 7:57 AM nagaraj a <nagarajnn@gmail.com> wrote:
All,

I have query regarding GOP driver in UEFI.  Here is query details.

If BIOS don't load UEFI GOP driver for  GPU and system boots into OS. 
Will latest windows /linux OS will be up with display or the display will be blank out.

//BR
Nagaraj A

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