Garrett D'Amore wrote:
> John Martin wrote:
>> Garrett D'Amore wrote:
>>>
>>> "primary-card" is a terrible name -- how about "primary-display" 
>>> instead?  (The primary display may be on the motherboard!)
>>>
>>> What is the purpose of this, is it for console support?
>> No.  It determines which graphics device on the system should
>> be used as the default device for X, especially in the case where
>> there are multiple graphics devices (not displays connected to a
>> graphics device).
>
> I'm assuming that this is only used when no explicit configuration is 
> present?
Correct.  It is not needed when:

1. There is a single GPU in the system.

or

2.. There are multiple GPUs,  /etc/X11/xorg.conf exists *and*
the device section for the graphics card has the BusID enumeration.

>
>>
>> It is independent of the console as the console may be a non-graphics
>> device.
>
> Okay, thanks for the clarification.  I still think "primary-card" is a 
> bad name... although you might argue "primary-display" is also bad.   
> How about "primary-controller" or "primary-display-controller" ?
I would like to avoid "display" in the name just so we don't confuse
the implementation for a display connected to a graphics card.  I'm
OK with primary-controller.

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