CONTEXT

1. HP DC7600 with onboard video Desktop PC with Windows XP /Ubuntu
2. ASUS EN210 Silent Video Card

QUESTIONS

How is configuration of onboard / installed video ports typically performed?

• for dual monitors (both onboard / installed video ports are active)?
• use Asus video card only (shutdown onboard)

Does the typical motherboard shutdown its video card automatically when it detects a video card?

I would like to understand the details of this particular configuration as well as the typical thought process (considerations and questions) that apply to the generic pattern.