Please use text, not images - it's easier for everyone (including those
using assistive technologies like screen readers).

your defconfig is wrong for libgfxinit + vbt + edk2. Here's what I would
recommend:

CONFIG_VENDOR_HP=y
CONFIG_CBFS_SIZE=0x400000
CONFIG_INTEL_GMA_VBT_FILE="/home/serveradmin/coreboot-blobs/coreboot/vbt.bin"
CONFIG_IFD_BIN_PATH="/home/serveradmin/coreboot-blobs/coreboot/descriptor.bin"
CONFIG_ME_BIN_PATH="/home/serveradmin/coreboot-blobs/coreboot/me.bin"
CONFIG_GBE_BIN_PATH="/home/serveradmin/coreboot-blobs/coreboot/gbe.bin"
CONFIG_BOARD_HP_8470P=y
CONFIG_HAVE_IFD_BIN=y
CONFIG_EDK2_BOOTSPLASH_FILE="/home/serveradmin/coreboot-blobs/coreboot/logo.png"
CONFIG_VALIDATE_INTEL_DESCRIPTOR=y
CONFIG_KBC1126_FIRMWARE=y
CONFIG_KBC1126_FW1="/home/serveradmin/coreboot-blobs/coreboot/ec_hp_kbc1126_fw1.bin"
CONFIG_KBC1126_FW2="/home/serveradmin/coreboot-blobs/coreboot/ec_hp_kbc1126_fw2.bin"
CONFIG_HAVE_ME_BIN=y
CONFIG_HAVE_GBE_BIN=y
CONFIG_INTEL_GMA_ADD_VBT=y
CONFIG_PAYLOAD_EDK2=y

Save that as your defconfig, then:
cp defconfig .config
make olddefconfig
rf -rf ./build
make

that should fix the Windows display issue.

On Fri, Sep 4, 2026 at 10:17 AM Logan Proctor <[email protected]>
wrote:

> Here!
>
>
> On Fri, Sep 4, 2026, 11:05 AM Matt DeVillier <[email protected]>
> wrote:
>
>> the latter. the command generates/saves a file called 'defconfig' in the
>> coreboot root.
>>
>> On Fri, Sep 4, 2026 at 9:55 AM Logan Proctor <
>> [email protected]> wrote:
>>
>>> I don't get anything from the command line. Do i run the command on my
>>> elitebook, or the laptop i used to configure coreboot?
>>>
>>> On Fri, Sep 4, 2026, 9:28 AM Matt DeVillier <[email protected]>
>>> wrote:
>>>
>>>> libgfxinit + vbt + edk is the right path. looking at the 8470p board in
>>>> the tree, there isn't a data.vbt. so you need to extract the VBT from the
>>>> vendor firmware and add vbt.bin to your config. Your defconfig should look
>>>> something like this:
>>>>
>>>> CONFIG_VENDOR_HP=y
>>>> # CONFIG_CONSOLE_SERIAL is not set
>>>> CONFIG_INTEL_GMA_VBT_FILE="path/to/vbt.bin"
>>>> CONFIG_BOARD_HP_8470P=y
>>>> CONFIG_INTEL_GMA_ADD_VBT=y
>>>> CONFIG_PAYLOAD_EDK2=y
>>>>
>>>> When the build is complete, vbt.bin should be shown in the cbfs listing.
>>>>
>>>> On Fri, Sep 4, 2026 at 7:53 AM Logan Proctor <
>>>> [email protected]> wrote:
>>>>
>>>>> At the moment, I'm using libgfxinit, but I've tried all three.
>>>>> Libgfxinit is the only one that shows anything on screen at all. Ill send
>>>>> that over later today! I have been using a vbt.bin, but i don't know if i
>>>>> used it right. I'm new to this sort of thing
>>>>>
>>>>> On Fri, Sep 4, 2026, 8:02 AM Matt DeVillier <[email protected]>
>>>>> wrote:
>>>>>
>>>>>> Windows going to a black screen when the Intel graphics driver
>>>>>> loads means the the VBT (video BIOS tables) data is missing or invalid.
>>>>>> Does your board have a data.vbt file, or are you including an external
>>>>>> vbt.bin? Which display init type are you using? run 'make savedefconfig'
>>>>>> and past the resulting defconfig file - the full config is unnecessary 
>>>>>> and
>>>>>> too long to parse.
>>>>>>
>>>>>> For the battery, that comes from ACPI, and is usually included with
>>>>>> the ec code. Nothing you should have to do there. Could be the result of 
>>>>>> an
>>>>>> ACPI parsing issue, or something else. Would need to inspect your ACPI
>>>>>> tables
>>>>>>
>>>>>> cheers,
>>>>>> Matt
>>>>>>
>>>>>> On Thu, Sep 3, 2026 at 7:43 PM Logan Proctor <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>> Hello! Is this the right place?? I don't know how this works..
>>>>>>> Anyways, I've been trying to get coreboot working on my hp elitebook 
>>>>>>> 8470p
>>>>>>> for about 2 weeks, and i eventually got it to boot, although no matter 
>>>>>>> what
>>>>>>> i try, if i install intel hd 4000 graphics drivers, Windows (windows 10 
>>>>>>> iot
>>>>>>> enterprise LTSC) crashes, the screen goes black, and it eventually 
>>>>>>> restarts
>>>>>>> into the windows recovery mode. I can't seem to fix it. A less important
>>>>>>> issue, is my battery isn't being detected in windows (when i boot into
>>>>>>> Windows with Microsoft basic display adapter, because that works). It's 
>>>>>>> not
>>>>>>> a deal breaker if i don't get my battery working, but it'd be nice. I'm
>>>>>>> using TianoCore, and i can send my .config file if you need it, or i can
>>>>>>> just take pictures of it. Thanks!!
>>>>>>> If you need anymore information, just let me know!
>>>>>>> _______________________________________________
>>>>>>> coreboot mailing list -- [email protected]
>>>>>>> To unsubscribe send an email to [email protected]
>>>>>>>
>>>>>>
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