My computer is a Lenovo Y450 computer with a shaky screen

Nothing you shake with it on the line!

The pen Zheng Boji shouted that the shirt flashed on the screen.

My Lenovo notebook has been used for less than a year, the screen has shaking, and there are multiple horizontal lines flashing on the screen, which can be used improvised, delaying the one-year warranty period. Later, it took 1,000 yuan for repairs. At first, it was shaking after turning on, and it was normal for ten minutes to dozens of minutes, and then it became more and more serious, shaking and flashing from beginning to end, and it was unbearable to send it for repair.

Screen cable components account for more than 90% of such failures.

1. Test the external monitor to see if the external monitor has a similar situation, so as to determine whether this fault is caused by the host part or the screen head part.

2. The external display is normal, please re-plug and unplug the screen cable interfaces on both sides and fix and check whether the cable routing at the screen axis may be squeezed and interfered with by other components.

3. The above operation is invalid, replace the LCD screen test, if the fault disappears, it is the LCD screen failure, and the fault still exists basically because of the screen line problem.

4. If there is a similar fault in the external display, you need to consider updating the graphics card driver, flash plug-in or restoring the system.

5. Software problems cannot be troubleshooting, replace the CPU test, to determine whether the fault is caused by the CPU or the motherboard.

Hello, it is recommended that you observe whether there is jitter during the startup process, if not, it is recommended to reinstall the graphics card driver to try, if there is jitter, it is recommended to contact the service station to check it.

Lenovo official website maintenance network inquiry**:

Have a great day!

1 There is a problem with the screen.

2 If there is a problem with the graphics card, you can re-drive it, unplug it and reinstall it if it is independent.

1 If it is a desktop monitor, you can check the connection line between the computer monitor and the host, many of the connection lines are from small factories, the transmission signal line in the line is not a high-quality metal wire, and the loss is serious (the so-called loss is that the diameter of the line is not up to the standard, fine, and the fine steel bar on the construction site, saving costs), the shielding layer is not enough, resulting in large interference, unstable signal.

2 There is also a situation that the display is not genuine Lenovo,It is an assembly of goods from a small factory,Copycats,Now a good Lenovo display is often 700-800,But the cost of assembled copycats is only 300 yuan,There are even more than 200,It's to get a Lenovo's shell buckled,What is the quality of this display?,You don't have to think about it.

3 The connection cable between the monitor and the host may be bent, or bent into a 180-degree half, which also has an impact on the signal.

4 It is also possible that the connection cable between the monitor and the host computer will be damaged, and bumps and bumps are inevitable.

5 There is a problem with the monitor itself, this can be tested by replacing the monitor cable, if the cable is replaced, it still shakes, it is a problem with the circuit inside the monitor.

6 The computer graphics card driver is not installed correctly, you can take a look, the early old computer, if the operating system is not installed with the correct driver, it will also shake.

7. Signal interference, see if there are magnets nearby, large welding machines, motors and other high-power electrical appliances, this kind of guy interference is also very high.

9 The graphics card is damaged, the interface of some graphics cards is faulty, and the graphics card itself has problems that will also cause jitter.

In the case of CRT displays, the most likely cause of jitter is that changes in the magnetic field near the display affect the RF flow emitted by the electron gun.

Other reasons such as faulty graphics card, unstable power supply voltage, and computer viruses are possible :)

Is there a problem with the cable of the display?

The specific steps for the answer are as follows:

1. Right-click in the blank space of the desktop.

2. Click "Screen Resolution".

3. Open the "Screen Resolution" window.

4. Click to open "Advanced Settings".

5. Switch to the "Monitor" page and adjust the refresh rate of the screen.

There are other factors for screen shake:

1. The hardware equipment is disturbed, and the electrical appliances with magnetic fields around the display are removed.

2. The power line is unstable, it is recommended to unplug the power cord and reinstall it.

3. Miscellaneous power supply or power supply that has been used for a long time is easy to cause the circuit to be unblocked, causing the computer screen to shake, it is recommended to replace the power supply with better quality.

It may be that the refresh rate of the display is too low, adjust the refresh rate to see if it can be solved.

This is generally due to a broken screen. You can plug in an external monitor to see if it's a problem with the graphics card or the monitor. In the past, HP and Lenovo have successively burst out of the flash screen door,The same batch of notebooks,Due to the use of a batch of inferior screens, the screen will flash after a period of time,I have also been tricked in this problem,Repair it badly,I can only change,I went to ** bought the corresponding screen that can be replaced, and I changed it myself。

If you are still in the warranty, go to the after-sales service to replace it, and you can replace it yourself after the warranty.

The computer I just bought is installed with windows7, but I feel that the response is very slow, such as opening some web pages, playing games, etc.