Showing posts with label Screen. Show all posts
Showing posts with label Screen. Show all posts

The way to Solve the Laptop Screen Flickering Problem

First of all I would like to wish you all a Happy New Year. In 2010 we started off as a small technology related blog. Currently, we have a reader base around 170. Thank you all for supporting us in a short while & may 2011 bring loads of success in your life.

Lets shift the focus on laptop screen flickering problems & the ways to solve it. Today, laptops have become almost a necessity. Though Desktop users like me won’t agree with this, as we are used to working on a desktop.

But sometimes even I feel the need of laptops, mainly when I’m getting bored traveling around. But I’ve seen my friends having problems with the laptop’s screen.

It keeps flickering for a moment or two & it’s quite irritating to work on such a flickering laptop. You need to adjust the screen to certain again or hold the back case of the screen tightly in order to make the flickering disappear. So lets take a look at the ways to Solve this nagging Screen Flickering problems in Laptops.

1. Update your Video Card Drivers




Sometimes it’s not just the hardware which is causing this problem. Old Video Card drivers could also be the cause of this problem.

For updating your drivers, you first need to Find the manufacturer of the Video Card by right clicking on your Desktop >> Properties >> Settings tab. Then Google for the update of your driver.

2. Screen Refresh Rate


A low Screen Refresh Rate can also cause Flickering Problems. Normally the Refresh Rate is set around 60 Hz. Today almost all LCD monitors are set to work perfectly for a Refresh Rate above 60 Hz.

If you’ve a good system then you can increase it beyond 60 Hz. Make sure that refresh rate is compatible with your system, else you’ll get problems in viewing two or more images where in you’ll find the top most image to be transparent.

3. Loose Connections
Sometimes you may get your screen to flicker due a loose connection in the wire which goes from the motherboard to the LCD screen. If you are not experienced enough in handling hardware problems, then don’t refrain from consulting an Engineer who’ll do the job more efficiently.

Opening the back cover of a laptop & checking for problems is a difficult task. You may end up fixing the loose connection but another problem might arise during this process.

How to Repair a Laptop Screen

One of the most common hardware problems that people who own a laptop experience is a broken or malfunctioning laptop screen. Laptop screens are essential to laptop use. Laptop screens can be incredibly delicate. However, they are surprisingly very easy to fix even if the fixer is not a technical person.

Troubleshoot the Laptop Screen Problem
Before replacing a laptop screen, it is wise to troubleshoot the problem. While obvious damage to a screen usually requires full replacement, other types of damage that are visible on the laptop screen may not be due to the screen itself.

Pixel Problems
Pixels often get damaged, making the laptop screen very difficult to read and use. Laptops use LCD (liquid crystal display) to show images, which are made from thousands of pixels (little dots). If a few pixels in one area are damaged, this can ruin the entire computing experience. In most cases, it is best to remove the entire laptop screen and replace it with a new one.
Laptop Screens with Faint Images

Laptop screens are back lit to improve screen visibility. However, sometimes the back light does not work, making the screen extremely difficult to read. The problem might be as simple as one of the latches being stuck in the closed position. For instance, if the laptop is opened and the switch is stuck in the closed position, the computer is usually on, but the back light remains off. First, find the back light switch. These switches are usually very tiny and located near the laptop hinges. Try to open and close the laptop a few times, if this does not work, a gentle tap or using a small pin to try to gently un-stick the latch usually does the trick.

The Laptop Screen Flickers or is a Solid White Color
If the laptop screen flickers on and off, the cause is probably an inverter problem. The inverter supplies power to the screen’s back light. Inverters are easy to replace and usually cost about $100. If the laptop screen is a solid white color, then the problem is possibly a bad cable connection between the monitor and the system board. Open up the laptop and make sure that the cables and connections are set correctly and undamaged.

Jumbled Screen Images
Laptop users often see jumbled images on their screen. In most cases, this is not due to the screen itself, but possibly the video card. One quick way to determine what is causing the screen to be jumbled is to connect a monitor to the laptop with a VGA port. If the other monitor shows jumbled images, then the problem is probably the laptop’s video card.

Replacing a Laptop Screen
If the image problem is due to a broken or malfunctioning laptop screen, replacing it is fairly easy. It should be noted that laptop screens are extremely expensive and can sometimes cost 50% or more of the total price of the computer, for instance more than $500 for a $1,000 computer. While a new screen can be purchased from the manufacturer, most people either decide to purchase a used laptop screen or buy a new laptop. Those who decide to replace their computer screen only need a screwdriver. Here are some easy steps to follow:

Step 1. Note the laptop screen type and purchase one that is guaranteed to fit. While some laptop models from the same manufacture may fit, ensure that it does before purchasing it. When ready to replace the screen, shut down the laptop, remove the battery, and unplug the laptop.
Step 2. Locate the screw covers on the plastic frame (usually rubber or plastic) to gain access to the screws that hold the screen to the bezel in place. In most cases, the screen has from 4 to 6 total screw covers. The user will probably need a small flat head or Phillips screw driver. However, some laptops might have their own screw heads that require special screw drivers or Allen wrenches to remove the screws. Screw covers are usually located at the bottom of the plastic frame. However, every computer model is different, so search for the screw covers to gain access to the screen.
Step 3. Once the screw covers are removed, remove all the screws while holding the screen in place. Once all the screws are removed, gently pull away the screen from the plastic bezel. The best way to accomplish this is to use one’s fingers to gently roll around the entire bezel, thereby loosening the screen. Once the screen is slightly separated, pull it away from the bezel with a light to moderate amount of force. If the screen does not budge, check whether any screws are still attached.
Step 4. When the bezel has been removed, the screen with a metal frame surrounding it will be visible. Tilt the screen forward, exposing the LCD frame’s metal back. The screen should gently pop out of its back shell. The wires running from the screen to the laptop will be visible. There should be two main wires. The first is a ribbon, which is the video cable. The video cable is usually taped in place. Remove the tape and gently disconnect the ribbon from the LCD screen. The other wire is the inverter’s power cable. In order to only replace the LCD screen, continue to use the inverter, leaving it as is. However, in order to replace the inverter as well, disconnect the power cable and unscrew the inverter from its mount.
Step 5. Once the old screen is removed, plug in the new screen and set it in the shell. However, before screwing in the bezels, test the screen to make sure it is working properly. In order to test the screen, power up the laptop. If the screen is working properly when powered up, shut down the computer and continue to screw the screen to the bezel and cover the screws with the plastic or rubber caps.

Screen replacement is complete. The computer should work like new. Replacing the laptop screen without a technician is a great way to save money, not only on the cost of the laptop screen, but the cost of labor as well.

Laptop has bad video on the LCD screen

Here we going to post some laptop screen photos showing bad video output. I’ll explain what was wrong with the screen and how I fixed it. I plan to ad more examples as soon as I get new pictures. If you have your own example (and know how to fix it) please let me know and I’ll post it too.

Here’s some help for finding a correct part for your laptop.

Example 1.
Here’s a picture of Satellite M55 LCD screen I made this morning. I got this video output as soon as I started the laptop. There were a lot of vertical lines, and they were changing color without any pattern. To me it looked like Northern Lights (never seen in real life)  . The external monitor worked fine.

 As soon as I applied some tension to the screen it changed the pattern. Some horizontal lines appeared in the middle of the LCD.



Here’s the difference. When I torque the screen, the image appears but it’s distorted with some horizontal lines running across the screen.

Reseating the video cable didn’t make any change and the problem was fixed after I replaced the LCD screen.

Example 2.
I took this picture from Toshiba Satellite M65. I think that this example is very typical. One day you wake up, turn on the laptop and see one or a few hair-like vertical lines in different colors.



When you move the LCD screen some lines might disappear or more lines appear on the screen. A video output on an external screen would be perfect, without any lines. Unfortunately, these lines indicate a screen problem. I’ve never seen this kind of video output caused by a bad video cable or bad FL inverter board. My laptop was fixed after I replaced the LCD screen.

Example 3.
The photo below comes from Toshiba Satellite 5205. The laptop displays identical vertical lines all over the LCD screen as soon as I turn it on. Sometimes these lines are red, sometimes they are blue, sometimes they become wider and change color to white.




The same pattern appears on the external monitor. It displays same vertical lines. When the same video defect appears on both monitors – internal LCD screen and external screen, then most likely it happens because of a bad video card. On some laptops the video card is integrated into the system board, on other models it’s a separate module.

In this example, the vertical lines were caused by a failed video memory on the system board. I’ve tested the video memory with Microscope utility and it failed the test. In Toshiba Satellite 5205 the video memory is integrated into the system board. To fix the problem, I’ll have to replace the board. (We do not have equipment to replace the memory module itself).

Example 4.
Here’s another example of a bad LCD screen. My bad! It wasn’t the LCD screen problem.


As soon as I turned on the laptop, I was getting these reddish marks on the LCD screen but not on the external monitor. Reseating and replacing the video cable didn’t help. The problem disappeared when I installed my test LCD screen. Yes, for some reason I wasn’t able to reproduce the problem on my test LCD screen. But the reddish video appeared again as soon as I replaced the screen. I guess it happened because the system board had some kind of intermittent problem with onboard video or video connector. Long story short, I had to replace the system board and it fixed the problem. Yep, I misdiagnosed this laptop.

Example 5.
Here’s one more example of a faulty LCD screen. The left half of the screen works just fine but the right side is completely white.



Example 6.
Here’s another laptop with a bad LCD screen. This time it’s a tablet PC.


Example 7.
This screen looks like the screen on the example 1. I hooked up an external monitor and the external video works perfectly fine.



Here’s the difference. When I torque the screen, the image appears but it’s distorted with some horizontal lines running across the screen.


After a few seconds the image washes away.


I had to replace the LCD screen.


Example 8.
This laptop displays inverted colors right from the startup. As you see, the Toshiba logo is light green instead of red. The background is light gray instead of black. The Intel logo should be blue on a white background but it is red on a black background.

 

When your laptop displays inverted colors as on the picture above, this is an indication of a bad screen. You’ll have to replace the screen.

Example 9.
Here are two more screens. In both cases this problem is related to the LCD screen, witch means the screen has to be replaced.

On the image below you see a white band running from the top of the screen to the bottom. This band appears right from the laptop startup and runs through the logo too.


On the following image only the left side of the screen is working properly. This problem is caused by faulty LCD screen.



laptop Blue Screen

Laptop Error Laptop computer
Blue Screen errors occur when your Windows take place system detects an error it locates not problems from can easily losing data, Windows detects information critical OS data has become corrupted or when Come to be detects that hardware has identifies in a non-recoverable manner. Blue screen mistake can easily appear after putting in brand-new hardware or computer software.


Typical Laptop Blue Screen (STOP) Problems Messages

Blue screen error messages during mistake or boot

New venture messages during shutdown

Problems. SYS" major problems message during new venture

Multipl_IRP_Complete_Request

Page Fault In NonPaged Area message

HARDWARE_DISK Failure appears after Failing or boot

New venture unsafe or sudden shutdown hazardous screen unexpected

Unmountable_Boot_Volume error in Problems

Windows start problems reboot loop (caused begin a Blue Screen errorTriggered

Missing NTLDR error message mistake startup

IRQL NOT LESS Problems EQUAL throughout new venture

Memory Corruption error message

Missing Operating Problems error message appears on mistake screen

Sorry for the InconvenienceProblems but Windows Failed to Start Successfully

178x - Disk Controller Error however black screen

PXE-E61Begin Effectively Test Failure on black screen

Mistake. EXE error message on black screen

Operating System Not Found Discovered mistake appears on black screen

Other serious Additional message mistake appear during startup throughout SmwdmConsist of

Blue Screen or STOP Problems Message Troubleshooting
At plumstead computer clinic, our knowledgeable technicians have good knowledge in troubleshooting typical software program and driver stop messages and also in troubleshooting and correcting hardware and system data based blue screen mistake messages. They are familiar with why the mistake messages happen, how to distinguish them and ways to fix the more typical mistake messages. We can easily troubleshoot and repair Blue Screen (STOP) mistakes for all Dell, Toshiba, Apple, Asus, IBM, HP, Gateway, Fujitsu, Lenovo, Sony, Compaq, Acer, Alienware, Sager, Panasonic, Packard Bell, Siemens, Advent and eMachines note pad designs.


Here are just some of the numerous problems we deal with at computer clinic:
Laptop Error Laptop computer

Blue Screen errors occur when your Problems happen system detects an error it locates not problems from without losing data, Windows detects information critical OS locates has important corrupted information when Windows detects that hardware has identifies in a has actually manner. Typical Laptop Blue Screen (STOP) Error Messages



Blue screen error messages during mistake or boot

New venture messages during shutdown

AFS2K. SYS" major mistake message during startup

Multipl_IRP_Complete_Request

Page Fault Web page NonPaged Area message

HARDWARE_DISK Failure appears after startup or boot

Windows unsafe or sudden shutdown risky screen quick

Unmountable_Boot_Volume error in Mistake

Windows start up reboot loop (caused begin a Blue Screen errorTriggered

Missing NTLDR error message during startup

IRQL Failing to see LESS Mistake EQUAL throughout new venture

Memory Corruption error message

Missing Operating System error message appears on mistake screen

Sorry for the Inconvenience, but Windows Failed to Start Successfully

178x - Disk Aggravation Error on black screen

PXE-E61: Media Test Failure on black screen

svchost. EXE mistake message on black screen

Operating System Not Found Discovered message appears on black screen

Error: Laptop LCD Screen Turns Red

I’m not sure if you’ve experienced this before but when Cely asked me to take a look at her computer, I’m totally surprised. The LCD’s color basically went haywire, or rather inverted. Black color becomes red, white becomes cyan, etc. On an intial search in Google attemmpting to find the reason and solution, I could’nt find any except a youtube video posted by another victim that had the exact same problem.


What Causes This
We were not really sure about this, but suspected the laptop was overheated, or the wiring connecting the LCD might get a little bit dislocated when opening/closing the LCD lid.

Attempt To RecoverI’ve tried restarting the Windows, re-update the graphic card drivers, reset screen resolutions but it all did not help. There aren’t much solution on the internet. Most of them suggest victims suffering from this to take it to computer shops to seek for assitance.

How I Manage To Recover ThisI exit windows, shut it down. plug out anything connected to it and let it cool off. Original colors recovers the second day I restart the machine. This might not work for you, but at least something you can try if you happen to encounter such situation.

Or here’s another solution (from a youtube user) you might want to keep in reference whenever you encounter any error in Windows.

Fix an Upside Down Computer Screen


If you're met with an upside-down computer screen when firing up your computer, you might be the victim of a practical joke. As humorous as this may or may not be, eventually you need to use your computer, which is more complicated when standing on your head. Luckily, the same tools the prankster used when orchestrating the prank are available to you. The hardest part in correcting the issue is navigating with your mouse. Fortunately, you can correct the setting using just your keyboard.



Instructions
1.Press the "Windows Logo" key, type "change screen orientation" and press "Enter."

2.Press "Tab" three times until you see a dotted line surrounding "Landscape (Flipped)."

3. Press the "Up Arrow" key twice to display "Landscape."

4. Press "Alt-A" to apply the settings and press "K" to keep your changes. Click "OK" to close the Screen Resolution window.

Tips & Warnings
On some Windows computers, an accidentally pressed keyboard shortcut could cause your screen to turn upside down. Press "Ctrl-Alt-Up Arrow" to return the screen to the correct position.

People with extremely volatile tempers will probably not react calmly to a computer screen suddenly flipping itself upside down.