How to fix UEFI GOP mode test in Windoes Hardware Lab Kit?

Question

How to fix UEFI GOP mode test in Windoes Hardware Lab Kit?

Prashant N 20

Test description says : 'At the minimum, UEFI must set a mode of 1024 x 768'

We are currently running these test in a server where processor is 'Intel Xeon 6338N' , in it graphics card is not present and hence our video output is at 800x600.

This is causing this test to fail and filters doesn't seem to be available for this test, how can we fix the issue?

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Answer 1

Hi Prashant N,

Based on my understading, The UEFI GOP mode requirement is strict because Windows Hardware Lab Kit expects firmware to expose at least a 1024x768 graphics mode during boot. Since your server hardware doesn’t have a discrete GPU and is defaulting to 800x600, the test will fail regardless of OS configuration.

The first thing to check is whether the system firmware (BIOS/UEFI) has updated microcode or display firmware options that can expose higher GOP resolutions. Some server vendors provide firmware updates that add compliant modes even without a GPU. If no option is available, you may need to attach a supported graphics adapter temporarily to pass HLK certification.

Another approach is to verify the GOP modes using tools like fwupd or UEFI Shell commands (gfxdiag) to confirm what resolutions are exposed. If only 800x600 is available, the HLK test cannot be filtered out, and the only fix is to provide hardware or firmware that meets the minimum requirement.

In practice, many OEMs handle this by providing a compliant firmware package or by running HLK on a test system with a supported GPU, even if the production server doesn’t use one. It’s worth checking with your hardware vendor to see if they have a recommended path for HLK certification.

I hope the response provided some helpful insight. If you find this answer useful, please hit “accept answer” so I know it addressed your concern.

Jason.