NO NO! The screen is not necessarily dead... lol! I just had the same problem, or even worse (the screen completely covered with a blue grid!) and it was an overheating issue.
I went to gather information (as much as I could see) on this site and others, and every time I read "dead graphics card, dead screen, etc..." ... boohoo ... but no! I have a pctools that repairs my damaged programs, it starts up every time I turn on my computer. I noticed that after the first repair it got better, but I had all sorts of colors everywhere! So I checked all my connections (I had read that it could also come from a surge issue) and found out that my fan plate was unplugged ...
my laptop is my work tool, it runs 15 hours a day, so I invested in a table with 2 fans to avoid overheating. Since then, I've sent my repair pctools at least 50 times, and I restart it 4 to 5 times in a row several times a day. All the lines have disappeared and haven't come back ...
So, before giving dramatic opinions, start with the simplest, you never know! Okay? hugs to everyone!

Hi everyone, my screen has 3 lines that suddenly appeared like this, I don't know why. Can you explain to me how I can remove them?

Hello there!

I'm sorry to inform you that your screen is dying.

A temporary solution is to give the back of the screen a good whack.
A proper smack, really.
It’s a method that works for a considerable amount of time.
But it is indeed your screen that's on its way out.

I know, I've had a similar problem...

So, anyway, a good slap on the back of the screen, and it’ll work again....
Sometimes, computing is just that simple...

Hello,

I have the same problem but it doesn’t come from the screen: I switched the display to my TV and I have the same pink vertical lines. So don't throw your screen away too quickly, check it first!

Hello;

I am also experiencing the same issue with an Easynote R9400. Apparently, it does not come from the screen as I did the test with my living room PC, nor from the power supply since it’s the same when running just on the battery. I will check if my Easynote is set up like yours, to see if something is touching my motherboard, as well as perform the procedure in the BIOS. Thank you.

Vertical artifacts = Video card issue = video card fan not spinning = video card overheating = burnt electronic component = need to buy a new video card.

video card = graphics card

The longer the computer stays on, the more pronounced the symptoms become.

Hello; I have a problem and I don't know where it could be coming from;
I have a red line that just appeared on my screen vertically.
I tried everything, turning it off; unplugging everything!
It's in a very specific place; right in the middle of the screen.
Anyway, if someone can help me...
Later!

thank you to the author of message number 27.

I followed your explanations, and everything is working fine for me.
Packard bell R3420

many thanks

Lionsage....

Hello everyone...

It seems that I also have the same problem with easynote R3420

and the defect after diagnosis is the graphics card or the controller, hoping that I can recover the motherboard if we can repair the graphics card controller...

Well, that said, I'm waiting for an appointment to see a technician; if anyone comes up with an idea, please keep us informed

Thank you all

LCD screens (liquid crystal display) take up less space on your desk than a tube screen, but there are many aspects to consider before a potential purchase.

The biggest disadvantage is that LCD screens can have dead pixels, meaning pixels that remain white (on), black (off), or even colored, depending on the type of defect. Some manufacturers will not tolerate defective pixels and will replace screens free of charge at the first dead pixel, while others only replace the screen if at least eight pixels are dead. A screen can have defective pixels as soon as it leaves the factory, but pixels can also be damaged if, for example, you press on the surface of the screen with your finger.
Flat screens offer excellent image sharpness and sufficient color quality for office applications such as word processing, but they are not suitable for designers who need photorealistic displays. Another concern is their response times, which limit their graphical qualities for applications where the image changes frequently and rapidly, such as games and movies. However, most LCD screens no longer suffer from this problem.
From an ergonomic point of view, flat screens have a lot to offer: they take up less desk space, consume less power, and emit less radiation.

Technical
One or more neon tubes form the backlighting, which illuminates the LCD panel. If the screen is equipped with multiple tubes, the "extra" tubes serve as a reserve in case the first one breaks, thus extending the screen's lifespan.

The light emitted by the tube(s) is redirected by a system of reflectors before it reaches the panel. Each pixel is made up of three sub-pixels, each controlled by a transistor that produces a voltage that moves the liquid crystals of each sub-pixel at a particular angle. The angle determines the amount of light passing through that sub-pixel, which in turn determines the image on the screen.

Screen Size
With prices dropping on large screens, there is no reason to choose a tube screen smaller than 17 inches or a flat LCD screen smaller than 15 inches. Both screen sizes have the same effective dimensions (visible area): tube screens display a black frame around the image and thus do not use the entire available surface.
Dot Pitch
Dot pitch is the distance between two points of the same color. It is generally measured diagonally, but for some open grid screens, it can be measured horizontally.
Resolution
The most common resolution is 1024x768 for a 17-inch screen or 1280x1024 for 19-inch screens. The higher the resolution, the smaller the text, icons, etc.

If you try to use a resolution for which your screen is not suited, you will get, on the one hand, a lower quality image, and on the other, you risk reducing your screen's lifespan. Additionally, if you purchase a screen that supports much higher resolutions than those you intend to use (leading to a lower resolution than the screen's capabilities), you risk experiencing moiré effects and using the screen under non-optimal conditions (in other words, wasting money).
Refresh Rate
The refresh rate corresponds to the number of image refreshes per second. It is expressed in Hertz (Hz). A screen with a refresh rate of 75 Hertz re-displays the same image 75 times per second. Note that this refresh rate of 75 hertz is not arbitrary, it is the minimum required to achieve a good image without flicker. Generally, it is better to use a refresh rate of at least 85Hz for a tube screen, to reduce eye strain caused by flickering (even if the effect is not directly visible). This only applies to tube screens and is as important as response time for LCDs.
Horizontal Refresh Rate
The speed required by a screen to trace a simple scan line, called the "horizontal refresh rate," is measured in kilohertz (kHz). This process is repeated line by line until the screen is filled.
Vertical Refresh Rate
The speed required by a screen to draw an entire screen, called the "vertical refresh rate" or the "frequency," is measured in hertz (Hz).
Bandwidth
Bandwidth is the amount of data that a screen can process per second. To calculate an estimate of the bandwidth required for a given resolution and a given refresh rate, you can use the following formula:
Bandwidth = 1.05Y*1.3X*R
Where Y is vertical resolution, X is horizontal resolution, and R is the refresh rate. This gives an approximate bandwidth of 87MHz for a 1024x768 screen at 85Hz and 145MHz for a 1280x1024 screen at 85Hz
Pixel Response Time
The pixel response time is as important for a flat screen as the refresh rate is for a tube screen. The response time of a pixel is the time it takes for an LCD cell to turn on or off.
For standard office applications, a response time of 70 ms (milliseconds) is sufficient, but for multimedia applications, it is recommended to have a flat screen with a response time of less than 30 ms. Many TFT screens still have issues with (animated) images in motion, mainly due to the long response time of the liquid crystals. For this reason, fast-moving image sequences (for example, the view of a fighter jet passing through a valley) cause a ghosting effect (light trail). However, there are now flat LCD screens with a response time of 8 ms.
Contrast
Contrast is measured as the ratio of light intensity between the brightest and the darkest points of an image. High contrast improves readability and ergonomics. The contrast for tube monitors can reach 700:1. This corresponds to the best of LCD screens, but most of them offer a significantly lower contrast, some as low as 300:1. Screens with a low contrast ratio often make dark colors appear as black.
For tube screens, dark colors are achieved by not illuminating the phosphor, while LCD screens must instead block light to reproduce dark hues. It is physically impossible to block light at 100% because a small amount of light always passes through.
Brightness
Brightness is the light output power per unit area. Brightness is a characteristic for which LCD screens outperform their tube counterparts. The latter have a brightness of approximately 80 to 100 cd/m² (candela per square meter). For LCD screens, a minimum of 200 cd/m² is to be expected.
Viewing Angle
The viewing angle is the maximum angle from which you can still see the image. The ergonomic conditions are at least 120 degrees horizontally and at least 90 degrees vertically, but larger angles are preferable. If you look at the screen from the side, it may appear dim or have color distortions.
Connectors
The standard analog connector is called D-SUB. There are also different digital connectors, DVI-I and DVI-D. DVI-I can be used for both digital and analog signals, while DVI-D is purely digital with a higher bandwidth.
USB Hub
With a USB hub on your screen, you can easily connect new devices like scanners and memory card readers without having to crawl under your desk to reach the USB ports on your computer.
Color
A white or gray screen will strain your eyes less than a black screen. This is also why only black screens are rated "TCO -95," while their white counterparts can be rated "TCO '99."
Integrated Speakers
Typically, the built-in speakers of a screen are very "basic" speakers, which are not recommended for listening to high-quality CDs or DVDs, but are sufficient for listening to internet radio if you do not have other speakers on your computer.
TCO 95/99/03 Standards
The TCO rating indicates that the device offers a minimum of visual comfort, is recyclable, and is manufactured with a minimum of harmful chemicals. The TCO99 standard also attests to a refresh rate of at least 85 Hz.

Hello everyone,

I'm experiencing the same issue with pink and green vertical stripes taking over the screen of my Packard Bell Easynote 3420.
So, I took it to a repair shop where the technician played MacGyver with a matchstick and some pieces of paper.
Indeed, it turned out to be a manufacturing defect with a component that was pressing on the graphics card, which suddenly stopped applying pressure. My repairman filled the gap with paper and a matchstick, and now it works again. So there's no need to worry about the screen or the motherboard.

The issue originates from Packard Bell, but since it's no longer under warranty, I couldn't do anything about it.

Hello, I have a Samsung 226bw screen with an S panel, running at 1680*1050 at 60Hz managed by an MSI 7600gt 512mb graphics card. For the past three days, certain applications (video games, media center) have been giving me vertical lines everywhere. For example, when I play a game, the lighting is very poorly managed and looks terrible (white and gray lines). When I don't put too much load on the graphics card, the image is perfect (videos, internet, etc.). I reinstalled the graphics card drivers (without uninstalling them first), and I'm still facing the same issue. Perhaps it is overheating, but if that were the case, I think it would be lagging like crazy. Can someone help me resolve this issue, please?
Thanks in advance

Hello everyone and good news: a big thank you to Cagalou (message n°27) because I applied his fix and everything is back to normal: the lines that were numerous and taking over the screen have disappeared!!! The computer is working perfectly again!!! I can finally use my computer again: no more line issues! I also took the opportunity to increase the RAM to give it a little boost, and to replace Norton Internet Security with another one, because it was slowing down the machine. Thanks again to Cagalou for his solution. I hope it will be the same for you.

resolved......!!!
I had the same problem with my Toshiba Satellite A300 Centrino T8400 2x2.1 GHz, which was supposedly stable... blue or pink lines, nicely matched with squares of the same color, and beautiful artifacts triggered by the movement of the mouse, which eventually led to the typical boot bug. impossible to start...
a firework display of crappy and twitchy bugs, especially since the warranty just expired... of course.
""equipped with an ATI Radeon 3400"".
I seemingly solved this problem. and of course I don't quite know how.
but...... here's what I did.
before the final bug I:
-1/ uninstalled everything related to the video card, drivers, catalyst....
-2/ installed the drivers for a 3470 instead of a 3400.
then I wanted to restart to install Catalyst... and.... too bad....! no more boot.... black screen... still glitchy, but, startup blocked even in safe mode. at the crcdisk level... I don't know what to do...
after the final bug.....
press F2 at startup...
activate the internal + external screen.
disable the second core.
disable the backlight.
exit...
bug...
restart and press F12 at startup.
choose the third boot sector (neither the hard drive nor the DVD drive... I can't remember the name of the sector... :( ... )
once at the error message about Windows startup..
request a startup with repair.... accept the repair until total startup..
- install Catalyst Control Center.
restart.... let the PC work for about 10 min. and it works... maybe a stroke of luck...
we'll see if it's stable....

Hello,
I've had this problem three times already (-_-). I have a Sony Vaio VGN-AR laptop.
-The first time, multicolored lines appeared on the screen, vertically. One by one. I had my screen replaced. At first, it was fine, no problem.
-But after a few months, a similar problem occurred, there were lines about 1 to 2 cm wide appearing... It was very bothersome, so I had the screen replaced again, suspecting that the issue was coming from elsewhere.
-Until then everything was fine, but about a week ago, my screen became all streaked with white or green lines, and it returned to normal a few hours later.
But yesterday, a fine yellow line crashed the party... Back to square one.
Should I buy a new laptop (the graphics card indeed heats up a lot), or should I cool the graphics card as Azerus says? Or should I just wait for the line to disappear miraculously?
Thanks for your help, I'm really fed up with this.

Hello, same problem, I bought a new Fujitsu Siemens laptop from Cdiscount
and it wasn't even delivered with a manual or installation CD. Anyway, after not even 5 months, lines started to appear on the screen and it has never had any shocks. It's getting worse, plus it overheats a lot even with regular dusting
sometimes the screen is completely black or gray. Basically, 399 euros down the drain, to be polite. If a laptop is not supposed to last even 6 months, I think it's a lost cause. A repair must be quite expensive. I'm going to try a cooling pad with a fan, but for now, I can only find them for 10-inch screens, while I've got a 15" one.

You need to replace the graphics card!!!

Hello everyone,

My contact at Packard Bell has decided to ignore me, I've followed up by email and phone. Nice of the brother-in-law............ I tried Cagalou's option (previous post) and wonderful, it works........ The only problem: I now regularly have a machine crash with a white screen. I do have 1GB of Kingston RAM running XP. I just can't seem to solve this failure. So I disassembled my entire machine, removed the heatsink from the graphics card, cleaned everything with isopropyl alcohol, applied thermal paste, and reassembled it. Result: no change.........

Regarding Henry35's post: WARNING: the component that presses against the heatsink of the graphics card is the heat pipe. Originally, rubber isolates the heat pipe from the graphics card but with the heat, it eventually melted, so I put a piece of circuit board instead. Do NOT use paper or matches, otherwise, a fire is guaranteed: the temperature of the heatsink and the heat pipe can be very high.

Personally, I think our failures are due to a design flaw. The heat pipe should never have gone over the graphics card. The rubber melting put the heat pipe in contact with the graphics card, which then overheated. The RAM on the card eventually fails. Hence the option in the BIOS allowing the system RAM to be partly used as graphics RAM.

Cagalou, if you have a solution regarding the crashes with the white screen, please keep me updated.

Don’t press too hard on your machine, I burned out my hard drive that way.......

Jérôme

Hi and a big thank you to CAGALOU. Your solution is the right one, I followed your explanations which are very simple for a beginner and HO miracle everything is working normally. Thank you a thousand times for your help.