On Wed, 2005-08-10 at 17:35 -0400, Stephen.Kimball@bench.com wrote:
Could someone explain the different VGA options with LinuxBIOS?
I've read the testbios FAQ items. This seems to be a utility program that can be run after the system comes up to initialize a VGA card. Then I suppose one could open an X window.
Then there are several LinuxBIOS Options that mention VGA: VGABIOS_START
This one is obsolete, it was used for VIA/EPIA only. I am going to remove it soon.
PCI_VGA_RAM_IMAGE_START
This is were the VGABIOS is copy to in DRAM. By PCI spec, it should be 0xC0000 for x86.
CONFIG_CONSOLE_VGA
This control if you are going to use VGA console. If it is enable, you can read message from VGA screen instead of serial console.
CONFIG_LEGACY_VGABIOS
This one is obsolete too like VGABIOS_START.
Some VGA options are more useful than others. For example, CONFIG_LEGACY_VGABIOS does not seem to be used. I see CONFIG_CONSOLE_VGA enables logging to the VGA. Could someone write a FAQ describing how to make CONFIG_CONSOLE_VGA work? Thanks.
Steve
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