What is a Dual Monitor Setup?

The concept of dual-screen display is controlled by one host, and the effect of externally connecting two monitors and displaying different screens at the same time is dual-screen display. The proposal of dual-screen display has promoted the development of dual-screen graphics cards and dual-screen display can be widely used In various window service systems, information distribution systems, etc.

Dual screen display

Dual screen display settings

Most laptops today have dual-view display capabilities. Whether the notebook has DualView function, you only need to open the "Settings" item in the "Display Properties" dialog box. If there are two monitor icons, it means that the graphics card supports DualView. If there are no two monitor icons, Appears and only sees the reduced icon on the desktop, indicating that the graphics card does not support DualView.

Win98 / Win2000 / WinXP support the use of multiple monitors to create desktops with multiple programs or windows. This article takes the Compaq Presario 800 used by the author as an example. DualView settings are performed under Win98. Similar settings can be made for Win2000 and WinXP.

First connect the external monitor 2 to the VGA port of the notebook. Open the notebook's "Display Properties" dialog box and select the "Settings" option. You can see the icons of the two monitors. Click "Advanced" and select the "Display" card. Set the notebook's LCD as the primary display and the external monitor as the secondary display. At this time, you can also set the depth, resolution, and refresh rate of the primary and secondary display colors. They do not have to be the same. After setting, return to the display properties. Monitor 1 is a notebook LCD and Monitor 2 is an external CRT. When you click one of the monitor icons with the mouse, it is highlighted and displays information about its monitor at the same time. Check the box labeled "Extend my Windows desktop to "On this display" checkbox, a "Compatibility Warning" window will pop up, select "OK". To avoid misalignment, drag the monitor icon to match the actual arrangement of the LCD and CRT. The edge where the monitor icon intersects is the boundary where the mouse moves from one monitor to another. The author places the external CRT on the left of the desk and the LCD on the right. At this time, the CRT (monitor 2) is placed on the left and the LCD (monitor 1) is placed on the right. If the display icon does not follow the actual placement Arrange, you feel very uncomfortable when using the mouse and moving windows between two monitors.

After the setting is completed, the main display LCD is the same as the original, but the external display is blank. At this time, you can move the mouse, drag or stretch the window between the two displays, or you can move the application to the external display for execution.

Dual screen display demo

The notebook's external display or projector's dual view (DualView) can achieve multi-display, multi-task presentation purposes. Some software also supports multi-display and multi-tasking, and I often use these functions in teaching and lectures.

PowerPoint is a presentation graphics program that can help you present your information effectively and professionally. Multi-screen presentations have been supported since PowerPoint 2002 (PowerPoint XP). I used an external CRT monitor instead of a projector for presentation.

It is preferred to open PowerPoint on the notebook's LCD, edit the content of the slide that needs to be presented, then click "View" in the menu bar, select "Remarks Page", and insert the explanation content when the slide is shown in the remarks page. The editing of the slide is complete.

Set the slide show. Click "Slideshow" in the menu bar, select "Set the slide show mode" item, the "Set the slide show mode" window pops up, and select "Monitor 2" in the "Multi-monitor" "Slide show display", yes In order to show the contents of the slideshow on the external display 2, select "Show Presenter View" at the same time, and the setting will take effect after the confirmation. See the effect during the show. The external CRT only displays slides. The LCD of the notebook not only displays the contents of the slides and notes in the slide show, but also lists the thumbnails of the slides and some buttons of the slide show tools. In this way, you can talk about the slides based on the notes on the remarks page. You don't need to turn the lectures forward and backward, and you will not miss the content of the lectures. You can also control the overall situation according to the slide thumbnail on the left. Use the projection tool to make the presentation "free and easy."

Dual-screen display multitasking

Dual-view display (DualView) can also achieve multi-tasking display, such as running different applications on two monitors, you can achieve the effect of expanding the screen, no longer need to repeatedly switch layers, depth, The program window is, in a certain sense, more convenient than using two computers at the same time, because a mouse and a keyboard can completely manage and control the different programs in the two screens. The notebook on the right in Figure 5 is looking up information on the Internet. The PowerPoint on the left has opened the PowerPoint window. According to the online information on the notebook, you can easily edit PowerPoint slides. Copying and pasting can be easily done in two windows. No need to switch between PowerPoint and IE window at all.

In addition, you can also run multimedia teaching software on one screen and open the application on one screen for operation exercises.

There are many applications for DualView in notebooks. The above are just a few examples of dual-screen displays commonly used by authors in presentations and home office. It enhances the presentation of the notebook and extends the functions of the notebook .