How to disable MMIO 4GB decoding

[jeffg]

i want to disable option MMIO 4GB decoding in sbios ,but i can not find this option.

If you can  expose such option because otter vendors expose it.

[KongL]

@y2kim

请帮忙~

[y2kim]

there is no model "HP ZBook P3000"

please confirm

HP Notebook PCs - How Do I Find My Model Number or Product Number?

https://support.hp.com/us-en/document/c00033108

[jeffg]

Hi Hp,

Thanks for your reply.

 p3000 is the dGPU in the zbook.

 The detail info should be HP ZBOOK 17 G4

[jeffg]

My product ID is 1NL41UT#ABA

[y2kim]

MMIO seems like an old techincal term, back in 2010. Why should we care this in 2017? What is th exact problem you have?

[jeffg]

RM issue occured with HP ZBOOK +eGPU

RM gets the VBIOS through ACPI calls basically function  acpi_evaluate_object with values ACPI_TYPE_INTEGER along with offset and length to read. ACPI returns proper value and data.

But in failing case i.r eGpu + iGpu after reboot, this call fails with value 5 and looks that it represent  AE_NOT_FOUND and since RM is not able to get VBIOS, RMInit failure occurs.

[y2kim]

I think you should call customer support and log case for further support, officially.

[jeffg]

Anyway, thanks. How to call customer support,  better to communicate with sbios team. we  want to expose option above 4g decoding. (pcie/pci)

[y2kim]

location is Hong Kong?

852 2802 4098