The difference between Windows 7 multi-monitor and multi-display (2)

Since the multi-display is mainly done by a single graphics card, the configuration is relatively simple. I will not elaborate too much here. The author here wants to focus on the implementation of multi-monitor and talk about how to configure multi-monitor. In general, there are a few common issues to be aware of when deploying a multi-monitor display.

1, beware of conflicts between graphics cards. Some video cards on the market now support multi-monitor display functions, while others do not. If you want to implement multi-monitor configuration, the VGA graphics card itself must support the multi-monitor display function. Otherwise, the graphics card may be unable to start or restart automatically due to conflict. The main reason is that if a computer has multiple VGA cards that do not support multi-monitor display, the hardware resources they occupy will conflict with each other. This conflict will cause the system to fail. For this reason, when selecting a graphics card, the system administrator needs to confirm whether the graphics card used supports multi-monitor display.

2, how to set the main graphics card. Normally, we will set the best performance graphics card as the main graphics card. To do this, the system administrator needs to understand the principles of the operating system to select the primary graphics card, and then perform related configuration. Generally, the graphics card includes a PCI graphics card and a VGA graphics card. By default, in the BIOS program of the motherboard, the VGA graphics card is used as the main graphics card. Therefore, the system administrator must first judge whether to use the VGA graphics card or the PCI graphics card as the main graphics card. If you want to use the PCI graphics card as the main graphics card, you need to set it in the BIOS. If you can modify the init display first item in the BIOS program, select the PCI graphics card. If the user has more than one PCI graphics card, then which kind of graphics card is set as the main graphics card? When the BIOS starts the PCI graphics card, it will scan and start according to the sequence number of the socket. For this reason, the graphics card of the plug 1 is often the main graphics card. Therefore, if the user wants to set a PCI card with better performance as the main graphics card, it takes two steps. One is to change the default setting of the BIOS, let it regard the PCI graphics card as the main graphics card; the second is to adjust the position of the graphics card, and insert the graphics card that wants to be the main graphics card into the slot. When Windows starts, it will use the display card that BiOS starts first as the main display card. For this reason, in Windows 7, it is still necessary to determine who will act as the main graphics card according to the settings of BiOS and the physical plug of the graphics card. It cannot be implemented by the configuration of the operating system.

3, the impact of the motherboard's built-in graphics card on the multi-monitor configuration. Some motherboards come with their own VGA graphics cards, which can have a detrimental effect on multi-monitor configurations. On the one hand, he will deprive the user of the ability to select the main graphics card, because usually the Windows 7 operating system will regard the built-in graphics card as the main graphics card, because it is the first graphics card launched by the BiOS program. Second, if the built-in VGA card does not support this multi-monitor function, it will conflict with other graphics cards and the operating system will not start properly. In order to solve this problem, it is best to disable the built-in graphics card. The built-in graphics card can be disabled by jumper or BiOS program on the motherboard; or it can be used as a secondary graphics card considering the performance of the built-in graphics card (this premise is that the built-in graphics card must support multi-monitor function).

4. Although the multi-monitor display card is mainly controlled by the BiOS program, the Windows 7 operating system still has certain control rights in this respect. If there are jumpers or DIP switches on some graphics cards, these jumpers or switches can be used to disable the graphics card. After disabling the graphics card, BiOS will not launch these graphics cards. These disabled graphics cards are automatically monitored when the operating system boots. After the system is started, the user can enable the graphics card to be used as a secondary graphics card as needed. Therefore, in the multi-monitor display configuration, it is common practice to disable other graphics cards except the main graphics card; then re-enable these graphics cards in the operating system as needed. This can increase the user's control over these graphics cards. Instead of having to go through the graphics card jumper or BiOS program every time.