The display has no signal The brand is Acer s, and there are two hosts and two LCD monitors in the h

1. There is the word "no signal" on the screen, indicating that the fault is not in the display, but:

1. Graphics card. Generally, the main control chip of the graphics card has poor characteristics, or the contact with the graphics card slot is not close, or there is too much dust in the graphics card slot;

2. Motherboard. Generally, the power dissipation of the on-board power circuit decreases, which makes the power supply of the graphics card insufficient, and the filter capacitor in the on-board power circuit seriously leaks, resulting in the voltage of the corresponding power supply circuit.

3. The data cable characteristics are poor, or the contact with the graphics card and display is not close;

This type of failure is characterized by the word "no signal" being displayed until the shutdown or restart;

2. If the word "no signal" disappears after only a few seconds, then it is likely that the memory module has poor characteristics, or the memory module is not plugged in properly, or there is too much dust in the memory slot;

From the analysis of the 4 items investigated by the landlord, it is estimated that the fault belongs to the first item 3, that is, the data cable is in poor contact with the graphics card or display;

It is recommended that the landlord replace a good data cable (the kind with a thick core) and make sure that the data cable is tightly connected to the graphics card and monitor.

Whether the interface type of the display has been checked. There is also whether to enter the Windows system or enter the BIOS settings. If the graphics card has multiple display interfaces, pay attention to check the VGA DVI HDMI interface, and some monitors must be connected to the computer host before turning on.

Good luck.

If monitor A is normal and monitor B is not, there may be a resolution problem.

Are 2 monitors the same?

Whether you have a card or a N card, you install the driver and install the official one. They all come with a controller.,There's a setting in it.,Research it yourself.,I don't know what graphics card you have.,I can't tell clearly.。

Right-click on the desktop to open the graphics card control panel and monitor settings options. After finding it, set the VGA and HDMI dual display, or extended mode.

Right-click on the desktop screen resolution detection and turn both on.

Control panel - > appearance and personalization - > display - > connected to an external display Set up dual monitors here.

If the monitor does not have a DVI input, you can use the DVI to VGA adapter to convert the DVI of the graphics card to VGA.

Dual-screen display is the use of a dual-output graphics card to connect two displays. Nowadays, graphics cards are almost all dual-ended outputs, one VGA and one DVI, two DVI, or one DVI and one HDMI.

1.When connecting the monitor, first look at the interfaces of the monitor and the computer host graphics card, find the signal transmission interface that is the same type of interface, both support both, and connect it through the signal cable that matches the interface.

How to connect the monitor to the main unit:

1.Connect via VGA signal cable. One end of the VGA signal cable is connected to the VGA signal interface of the computer's independent graphics card, and the other end is connected to the VGA signal interface of the display.

2.Connect via HDMI signal cable. One end of the HDMI signal cable is connected to the HMDI port of the computer's discrete graphics card, and the other end is connected to the HDMI port of the monitor.

Finally, use the power cable that comes with the monitor, connect one end to the power jack of the monitor, and connect the power supply board to the other end.

Connect two monitors to the console, one with a VGA cable and one with HDMI (or DVI), and then power on the computer and the monitor.

After booting into the system, win7 system right-click on the desktop to enter the screen resolution interface, select "Expand these displays" in the multi-screen display drop-down menu, and then click OK.

Once you've clicked OK, you're ready to set up the extended display, so that the two screens can display the content separately:

Generally speaking, one machine with two monitors is that your graphics card supports dual outputs and has more than two graphics card output interfaces!

At present, the output interface of the graphics card is mainly VGA, DVI, HDMI, S terminals! Most discrete graphics cards are equipped with VGA+DVI+S terminals or dual DVI+S terminals! And the newer integrated graphics cards and discrete graphics cards all come with HDMI ports!

To achieve dual monitor output, first determine which interface your monitor supports! It's usually DVI or VGA! LCD TVs or high-end LCD monitors are equipped with HDMI!

And the S terminal is mainly connected to the TV!

Once you've made it, it's time to use the cables of these interfaces to connect the host and the display!

Then set up the assignment of dual monitors in your computer's graphics control center! (Generally, there are master-slave, cloning, and stretching).

As for the distance of the connection!You should know that the longer the line is, the greater the attenuation of the frequency!Generally, there are several specifications such as 5m, 7m, and 12m!

If you do not use a signal amplifier, it is generally not recommended to have a line of more than 10m!Otherwise, the loss of picture quality will be a bit obvious!

As long as your graphics card is good for performance!You can also position the monitor like this!Just set it to master and slave display, and you're good to go!

Operational words!Of course, a wireless keyboard and mouse are best!But also take into account the architectural layout of your home!

If it's too far away from your host, it may not be so convenient to operate!

The computer host can achieve dual-screen display, as long as you buy a line, it is almost easy to solve, but what you said has been an office, a design Then you have to set up a virtual machine, and then 2 computers can log in, Computer sharer or single machine multi-user or network computer. The meaning is the same. It can be used by multiple people at the same time and can be used independently.

Do not interfere with each other. It can be used by up to 30 people at the same time. This is a theoretical number.

But a host for 20 people can be achieved. The host configuration is very high. Like you're going to have a toot.

II.III. Basically, you can do it with a home computer.

To use this product, it is first necessary to have a complete computer. Then each additional individual user is required to use a monitor, a keyboard and mouse, and any of the above products. This product is like a replacement for the computer's main chassis.

The resources are the resources of the computer used, and the host is configured, and the extension is used well.

The extension can be used independently, and there is no problem with Internet access, QQ, office software, etc. There are also his drawbacks of not being able to play large games. The results of any discrete graphics card are not very good.

It's certainly not as good as a standalone computer. But this product** is cheap. It depends on how you use it.

If you have one at home and want to play with multiple people, this is also a good solution. Just one point: Only one graphics card is used. Not two pieces.

If you want to buy, I suggest you understand it first.

VGA and DVI interfaces.

One monitor is connected to a VGA

And for another monitor, buy a VGA to DVI adapter and connect it to your computer.

Installing two graphics cards on the console will do the trick.

There are two ways to do this.

Setup method: Take win7 as an example.

1.First, right-click on the blank space of the desktop and select the "Screen Resolution" option; Enter the resolution setting dialog box.

2.If there are two monitors connected to the graphics card of the computer's host computer, the following effect will be displayed. Click Detect to detect it. Then click on the button box behind the multi-monitor, and you will see the two options of "Duplicate these displays" and "Expand these displays".

Method 2: You need to use a crossover.

The function of the crossover is equivalent to the multi-functional plug-in board in our daily life, expanding a 220V jack into several jacks. The crossover generally has a signal input interface, which is used to connect to the computer host, that is, the signal source. There are 6-9 signal output interfaces for connecting different displays.

Here's how to connect two monitors to a computer console:

1. First of all, prepare the VGA data cable and connect the host and monitor.

2. Then click on "Control Panel".

3. Then click "Show".

4. Then click "Change Display Settings".

5. Finally, there will be 2 displays, which can be used and set accordingly.

Tips: 1) When moving the monitor, unplug the power cord and signal cable, and turn off the power cord and signal cable when plugging and unplugging the power cord and signal cable.

2) When adjusting the function knob on the monitor panel, it should be slow and steady, and do not turn hard to prevent damage to the knob.

3) The indicator should be plugged into a socket with a fuse, preferably with an uninterruptible power supply.

4) Pile up clutter on the display.

5) If the display content of the indicator is always unchanged for a long time, it is best to use a screen saver.

A complete driver with the graphics card attached. If it's an A card, you'll have a CCC center, and if it's an N card, you'll have an NV control panel. Enter these control panels, there are corresponding dual card output modes, etc., and select the "Copy" mode.

Split one line directly above the signal to connect the other. One. Display. Difference.

Once plugged in, the computer will automatically pop up. The corresponding interface.

Connecting one shunt to another can carry many synchronous displays.

It is not possible to plug two sockets directly into two computers with one monitor at the same time, and you must use a monitor VGA switch.

VGA switcher refers to the output of one of the multiple VGA computer display input signals to an output device through the switcher, so as to achieve the purpose of selecting one of the multiple signals to output.

You need to purchase a display adapter to connect two consoles to one monitor.

If you don't buy a converter, you need to manually plug and unplug the data cable of the monitor.

The switcher of the monitor needs to be purchased***, and ordinary ones may cause the display to blur or flicker.

The two output ports are designed for old graphics cards, and some old graphics cards can only use a 15-pin connector without DVI output. So it's not designed for switching between two hosts.

Buy a KVM switch and connect the keyboard, mouse, and monitor.

Press the button once to switch to the next one.

This is used more in the factory for testing, and only one monitor is needed for a row of hosts, which saves a lot of costs.

The display can select the input source.

The monitor does not have an input source to choose from.

Obviously, this is the only time to buy a switcher.

If you need to use it for graphics processing, it is not recommended that you use the first one, general remote connection, assistance, login, the quality of the desktop color of the controlled computer will not be high, which will affect the quality of your drawing, but the advantage of this method is that you can operate two computers on the same computer, and your method 2 will have to run between the computers for two days.

1. The computer is a dual-head graphics card, connect the two monitors with the computer with a special cable (such as a VGA cable directly or through an adapter), and open the computer into the graphics card control panel to set the dual-screen display copy mode. This allows two monitors to display the content on the computer at the same time. 2. If you want two monitors to be operated independently like two computers, you have to use computer doppelganger software to make one computer into multiple computers.

The software can realize that many people share a host resource, and independent of each other, in short, a host, multiple monitors, mice, keyboard.

1. If the display has multiple input interfaces, the priority order is VGA>DVI>HDMI; Simply speaking, the computer connected to the VGA interface will not display anything else, and the computer connected to DVI will only display it when it is turned off;

The switcher has buttons to switch which computer source to use

Yes, there is it in the graphics card settings, choose the second monitor (that is, the frame with 2) to set the resolution, and there is an option box below how many degrees of rotation, adjust it yourself.

Yes, now the graphics card supports dual-screen output, just connect the monitor and adjust it in the display settings.

Yes, but it is not convenient to operate. You can only switch by selecting a source in the display menu.

If the display supports automatic search of signal sources, you can add a switch to control VGA on/off, if VGA has a signal, the signal source will automatically switch to VGA, if VGA has no signal, then automatically search for DVI signal.

If the display has a button to switch between sources, it is much more convenient.

It can be switched, but it is not convenient to operate. You can only switch by selecting a source in the display menu.

One is plugged into a VGA cable, the other is plugged into a DVI cable, and then there is a SOURCE button on the LCD monitor, which can be switched between the two inputs by pressing 1.

1. Two interfaces are connected at the same time, but they can't.

2. Plug and unplug the monitor cable when switching, yes.

3. Switchers can be purchased.

I'm a monitor manufacturer.

For your first question, I haven't heard of the same source, two different monitors, and different wallpapers.

I don't understand the second question,The effect of this picture is called large-screen splicing,It has nothing to do with wallpaper,It's a signal that is split by a splitter and displayed through multiple displays,In fact, this is a signal source。