[coreboot] REG : GOP Driver
matt.devillier at gmail.com
Thu Aug 30 18:56:49 CEST 2018
On Thu, Aug 30, 2018 at 11:41 AM nagaraj a <nagarajnn at gmail.com> wrote:
> Hi DeVillier,
> Thanks a lot for the kind response.
> 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.
> For the above note this holds good for already installed OS.
> In case if we are trying to install windows OS for the first time and GOP
> driver is not loaded for the Intel iGPU in that case I understand there
> will be blank out.
I'd have to test to be sure, but that sounds correct. I know the Windows
installer uses a basic driver of some sort, and likely assumes a working
> Correct me if I'm wrong.
> Nagaraj A
> On Thu, 30 Aug 2018, 8:57 pm Matt DeVillier, <matt.devillier at gmail.com>
>> 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 at gmail.com> wrote:
>>> 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.
>>> Nagaraj A
>>> coreboot mailing list: coreboot at coreboot.org
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