Hello,
I am trying to run coreboot with seabios payload on Lenovo T60:
Graphic: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated
Graphics Controller [8086:27a2] (rev 03)
Display panel: LTN141XA-L01
So, graphic is Intel, but display panel LTN141XA-L01 is not supported for native
graphics initialization. I dumped VGABIOS from memory and attached it to the
ROM file:
./cbfstool coreboot.rom add -f vgabios_from_mem.bin -n pci8086,27a2.rom -t raw
./cbfstool coreboot.rom add-int -i 0 -n etc/optionroms-checksum
Unfortunately after powering on - screen is black. Did I miss something?
--------------------------------
VGABIOS which I use:
Image 1:
PCI Expansion ROM Header:
Signature: 0x55aa (Ok)
CPU unique data: 0x75 0xe9 0xa9 0xe3 0x30 0x30 0x30 0x30
0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30
Pointer to PCI Data Structure: 0x0040
PCI Data Structure:
Signature: 0x50434952 'PCIR' (Ok)
Vendor ID: 0x8086
Device ID: 0x27a2
Vital Product Data: 0x0000
PCI Data Structure Length: 0x0018 (24 bytes)
PCI Data Structure Revision: 0x00
Class Code: 0x030000 (VGA Display controller)
Image Length: 0x0080 blocks (65536 bytes)
Revision Level of Code/Data: 0x0000
Code Type: 0x00 (Intel x86)
Last-Image Flag: 0x80 (last image in rom)
Reserved: 0x0000
Platform specific data for x86 compliant option rom:
Initialization Size: 0x75 (59904 bytes)
Entry point for INIT function: 0xe3af
-----------------------------------
ROM contents:
cmos.default 0x0 cmos_default 256
cmos_layout.bin 0x140 cmos_layout 1824
fallback/dsdt.aml 0x8c0 raw 12037
fallback/romstage 0x3800 stage 36472
fallback/ramstage 0xc6c0 stage 53914
fallback/payload 0x199c0 payload 55825
etc/ps2-keyboard-spinup 0x27440 raw 8
config 0x27480 raw 82
revision 0x27500 raw 569
etc/optionroms-checksum 0x27780 raw 8
pci8086,27a2.rom 0x277c0 raw 32768
(empty) 0x2f800 null 1901528
------------------------------------
Regards,
Lukasz Dmitrowski
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