[coreboot] Video not seen with BayTrail-I platform Board which has DVI/HDMI interface

galla rao galla.rao80 at gmail.com
Thu Nov 8 11:08:15 CET 2018


Hi All,

Am facing Gfx Enablement failure, i don't see any Video output on my screen

Config file has below settings

CONFIG_VGA_BIOS_ID="8086,0f31"
 CONFIG_DRIVERS_PS2_KEYBOARD is not set
 CONFIG_ONBOARD_VGA_IS_PRIMARY=y
CONFIG_VGA_BIOS=y
CONFIG_UDELAY_IO is not set
CONFIG_DCACHE_RAM_BASE=0xfef00000
CONFIG_DCACHE_RAM_SIZE=0x4000
 CONFIG_ACPI_SSDTX_NUM=0
CONFIG_VGA_BIOS_FILE="../intel/cpu/baytrail/vbios/Vga.dat"
 CONFIG_PCI_64BIT_PREF_MEM is not set


BIOS log specific to Video output onto terminal

------------------------ VLV SSA Platform Policy dump Begin ---------------
Graphics Configuration:
 GttSize : 2 MB
 IgdDvmt50PreAlloc : 2
 PrimaryDisplay : 0
 ApertureSize : 2
 Turbo Enable : 1

IGD enabled.

dGFXBase         =  0x7BE00000


Do i need to configure any setting
in \FSP-master\FSP-master\BayTrailFspBinPkg\Vbios\vga.bsf file from BCT?

Please let me know what could be the reason and if anyone has seen such
behavior earlier


Best Regards
Ranga
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