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Haha, this problem is the same as when I first joined the work in 2006, but I solved it myself. There are two solutions:

Method 1, hard disk broadcasting system, playing multimedia files to TV through Shenlong card, is the effect of TV station now. I'll give you a reference: Changsha Ruan Zhi Science and Technology, our hotel has a self-management channel for using this software for a fee.

Method 2, that is, the scheme before I used the hard disk broadcast system. I wonder what your computer's graphics card looks like? No matter what kind of graphics card it is, as long as there is the S-side interface of the graphics card and the control center driven by the graphics card, such as ATI chip graphics card, there is a control center. Set your primary monitor as a computer and your secondary monitor as a TV (if it doesn't work, the primary monitor and secondary monitor will be replaced). Extend your monitor 1 (computer) to monitor 2 (TV) and to TV. The computer desktop is still the computer desktop, and the mouse can be moved over there. You just need to open PPLIVE or play software, drag it into the auxiliary monitor, and then go to full screen. This method does not cost money, but it is very troublesome, because the sound still comes from the computer. In other words, you can't have any other sound except the sound of the software. In addition, players recommend using nero Show player in Nero recording software. The controller is separated from the playing window, and the background of the playing window can be changed. 、

Methods 1 The tools used are Dragon Card, hard disk broadcasting system and, of course, audio and video cables.

The tool used in method 2 is (the discrete graphics card should have that kind of S-side interface. ) The S terminal line, audio line and S terminal line transmit the displayed image to the TV.

Maybe the answer is not complete, but I used both methods a few years ago, and now I use hard disk broadcasting system+Shenlong card. Leave me a message if you have any questions.

(The brother upstairs doesn't have dual graphics cards at all. The monitor can only be connected to one port. Another explanation seems to be that dual graphics cards are connected to dual monitors or monitors, and that is the monitoring system. )

Brother upstairs, your method is different from that of the landlord. Your method is to drag the whole picture of the computer to the auxiliary monitor, which means that the contents displayed on the two monitors or the monitors connected with the graphics card are exactly the same, which is equivalent to a video distributor.