What should I do if the Lenovo LCD suddenly turns off, and the Lenovo laptop turns on automatically

Check first if it's a system problem, such as virus interference, whether the graphics card driver is installed correctly, or software conflicts. It's really not possible to connect the monitor directly to another host and try it for 1 day.。。。 Look normal no.

If it's not a system problem, it's troublesome,You can first check whether the power supply of your electricity environment is stable,Then check whether it's the aging of some parts of the display,For example, the power supply in the display,And the picture tube。。 This depends on what display you are, flat or LCD. Whether it's new or old.

How long did it take... Wait a minute.

I can't repair it myself, and I can send it to a place where I repair the monitor professionally. But it also depends on the part is broken.,It's worth repairing.。。。

I hope it's not a hardware issue... good luck!

ps: It's been a long time since I've helped people. It's a bit of a mess -

It should be a little humid inside the power switch of the display.,Take an electric wind to blow.,It should be fine to blow it for a while.。

After the LCD screen goes black, its power indicator lights go out at the same time, and it can be temporarily restored after turning on the power switch of the display, indicating that the base of the adjustment tube in the power supply circuit of the display switch can be soldered again;

If it is sent for repair, the maintenance ** is about 40 yuan.

Your Lenovo is not a 12V4A power cord that shares a power supply with the host... If you are trying to change the power supply

I recently bought a Lenovo notebook with a new leaky pants, and the installation is a win7 system. During use, a problem occurred. To save power, I turn off the monitor when I'm not using it for a while, but it turns on automatically after a while.

Analysis of the specific reasons:This situation is mostly caused by the driver is not installed well or does not match, as long as we update the correct driver pure sum can be solved.

Here's how:4. Click the "Start" menu and select the "Control Panel" option;

5. Right-click "Programs and Functions" in the open interface and select the "Uninstall" option;

6. After uninstalling, restart the computer;

7. If it still doesn't work, then update the hotkey tool driver, graphics card, and motherboard driver in turn.

Want to know the monitor screen automatically black.

What to do? Here's what to do if I bring the Lenovo monitor to automatically black screen, welcome to read!

Lenovo monitor automatic black screen solution method 1:

1. First determine whether it is a computer or a monitor problem, connect the monitor to another computer, if it can be displayed normally, it proves that it is a computer problem.

3. If it is a computer problem, check the contact between the graphics card and the motherboard, the contact between the memory and the motherboard, whether the graphics card is damaged, whether the host starts normally, etc.

Lenovo monitor automatic black screen solution two:

The computer enters sleep mode and cannot wake up, press and hold the boot button until it shuts down completely, and then restarts.

The memory is loose and incompatible, unplug it and reinstall it to try again.

Software conflicts, graphics card drivers.

Lost or modified, enter safe mode.

Uninstall the graphics driver completely, reboot it, and reinstall the graphics driver.

If the system fails, the fastest way is to reinstall the system.

The graphics card is soldered or damaged, and an external monitor can be connected if possible.

The screen itself is damaged.

Lenovo display automatic black screen solution three:

1: The screen is faulty. This kind of failure is mainly caused by the bad backlight tube, and there are also some problems with the backlight tube's circuit, which leads to the failure to light the backlight normally, resulting in only displaying information and no backlight, that is, = screen dimming fault.

Blind 2: The backlight plate is faulty. When the backlight panel fails, it cannot provide the voltage or power of the lighting tube, and there is no backlight display, so the screen is dark.

3: Motherboard failure. If it's an integrated graphics card.

If the motherboard is faulty (the graphics card part), there will usually be a black screen or a white screen failure, depending on whether the signal sent to the backlight is from the motherboard or look first, if it is the motherboard, and this part of the circuit is not faulty, there will be a white screen failure (at this time, the backlight is only lit up and no information is displayed), if it is from the empty card of the display and lead elimination, unfortunately this part of the graphics card is also faulty, there will be a black screen failure.

4: There is another part that can not be underestimated, that is, the connection part between the backlight plate and the screen, if the contact is poor, it will lead to the backlight plate to provide the lamp to work in the conditions are not available, resulting in the screen dark fault. Finally, it is especially important to remind you to see if the sleep lever is pressed, because the sleep lever provides the function of turning off the backlight (because it is easy to cause this kind of failure if it is not installed well, and this is the reason why the laptop does not have a "display" after the screen is turned off).

The easiest way to distinguish whether the graphics card is faulty when the screen is dark is to connect an external monitor to see if there is a display, if there is, it is not a graphics card failure, but a graphics card failure.

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Dear Lenovo users, hello!

Dear Lenovo users, hello!

Based on your problem description, we make the following recommendations:

1. First, enter the safe mode and disable the graphics card;

3. Restart the computer and enable the graphics card after successful installation.

IDEA Forum:

Think Forum:

Lenovo Community:

Move the keyboard, mouse, you can activate, you change the power settings in his control panel, do not sleep.

Dear Lenovo users, for your question, it is recommended that you update or reinstall the graphics card driver.

Hello, this is a hardware problem and needs to be repaired at a local Lenovo repair point.

The settings for using the laptop battery and using the mains are separated. Do you use a laptop battery so turn off the monitor frequency?

It's not very clear, but Lenovo notebooks have their own power management software, and you see what your power mode is. Then select Advanced and go in to see when the monitor is off.

Did you turn 15 minutes into 15 seconds?

Check the graphics card first, then the monitor. The specific way is to change the old monitor first and see if there is a problem? If it comes out, the graphics card is broken, replaced, and it doesn't come out, it's a problem with the display, find Lenovo after-sales to solve it!

The problem is still on the backlight board, if there is no problem with opening the cover, it means that the components are in poor contact. Thermal expansion and contraction cause desoldering, virtual soldering, and poor contact of plug-ins. Let's take a serious look.

To disassemble and check, the high-voltage board, filament, power board, whether it is soldered!

If your black screen is powered off, then you only need to spend 60 yuan to change a power module, if not, please don't focus on the monitor, the monitor is likely to be fine, the problem is on your host, it is recommended that you reinsert the memory module, graphics card and other hardware.

Obviously the fault of the display,Lenovo's LCD standard warranty period is 15 months,If you have a formal invoice, the invoice shall prevail,If there is no invoice, the production date of the label behind the main chassis shall prevail。 Look at the warranty period, if you are in the warranty, hurry up and call 800-810-8888 to report for repair, if you are not in the warranty period, it is best to find a place to repair it!

If there is a faint image after the black screen, it is a dark screen fault, and the high-voltage part of the capacitor is generally overhauled ---to see if there is a bulge or leakage. There is also to detect whether the lamp is aging. If there is no image after the black screen, it is generally a switching power failure.

This overhaul is cumbersome and depends on the actual situation. Here's a suggestion if you don't have experience in repairing this.

It is best to send it for repair, more than 100 pieces. That's someone slaughtering you. Hehe.

Good luck!