X Server setup on ARM Board with PCI VGA card

[Alan Cox]

> Does this mean that X Server runs the BIOS of the VGA Cards if the card is
> secondary display adapter.

In some cases it will do so yes via the int13 hooks. 

> X.org also contains an x86 emulator which may help, but if the BIOS
> > itself uses legacy vga ranges to configure the chip that might not help.
> 
> 
> If the card is working as secondary Display adapter Even its BIOS will not
> use the VGA Address range as it is already reserved by the primary display
> adapter Am I correct?

Not always. In some cases the VGA address range will be re-routed to the
secondary card while it is configured and then changed again.

Alan