Don't panic! How to fix 5 common PC emergencies
Sep 06, · Look down a click on display. You will see boxes with squares (or rectangles) filled with a number. Clicked on the one that is your monitor (or the one you want) and click on the little box that says "set as main display" and click apply. Oct 30, · Completely unplug, and plug back in, each end to be sure. Newer interfaces, like HDMI, often "push" in and "pull" out, meaning gravity can sometimes eventually work them loose from both the monitor side and the computer side. Older interfaces like VGA and DVI are often screw-secured, but they come loose sometimes, too.
The screen started showing strange or messedd colors. What could be wrong? In this post I explain some basic troubleshooting techniques in case if your screen started showing strange or incorrect colors. Hos have to know how to disassemble your computer in order to use following troubleshooting techniques. The main troubleshooting step is testing the video output on an external monitor or TV. Some laptops detect external monitor automatically and start showing image laptoop both screens right from startup.
Other models can detect the monitor but display image only on one screen internal or external. If both, the internal screen and external monitor or TV show strange or incorrect colors or any other image distortion, this is the graphics card failure.
If only the internal screen shows bad video but external image appears to be normal as in my examplethe problem is somewhere inside the laptop display.
The screen receives data signal from the motherboard via LCD cable. If the LCD cable not making good connection with the motherboard, it might cause image or color distortion on the screen. Try reseating the LCD cable connector and see if it fixes the problem. Make sure the LCD cable connector plugged correctly. In most laptops the LCD cable connector located under the keyboard bezel messsed keyboard cover. The LCD cable runs inside the display panel, under the screen.
A pinched or damaged wire inside the cable also can cause color distortion. Wiggle the cable while the laptop is running. If moving the cable affects image on the screen in any way it starts shown different colors, lines, or image clears to normal, etc most likely the cable is acreen and has to be replaced.
Try replacing the cable. Try applying some reasonable pressure to the top part of the display assembly. Squeeze it with your fingers. If the screen starts showing different screne, lines, or clears to normal when you squeeze the top part of the display panel, meszed likely this is screen failure. Troubleshooting backlight failure. How to test screen inverter. Bad video on the screen. What is wrong? Fix video problems.
OK, my laptop started showing some random characters all over the screen. The characters appear when I turn on the laptop on the background where logo displayed and it looks like these characters forming vertical rows. After reading your post I decided to test it with my desktop monitor and found that external image also has same characters and some strange lines. Does it mean the video card is bad? Yes, it sounds like the graphics card failure.
In most laptops the graphics card integrated into the motherboard and cannot be removed or replaced separately. Probably not worth repair. A screen may show wrong colors if it has been constantly exposed to an adjacent magnetic field effect such as music system speakers. This problem is so difficult to fix. Hi I have a laptop with no backlight on the screen . I have a laptop with no backlight on the screen .
Screen inverter and backlight lamp have very similar failure symptoms the screen light goes off but you still can see a very faint image. Which one is failing, the backlight lamp or inverter?
You cannot tell without testing your laptop with another working screen or inverter. If you have to guess, try replacing the inverter board first. I think this is LCD screen related failure. There is a chance of bad connection or failed video cable, but I think this is bad LCD.
My laptop shows a distorted image output on the LCD but the signal to another monitor is good. Is there a chance that the actual connector on the motherboard is bad? Take a look inside the connector on the motherboard. Maybe you have a damaged pin inside the connector.
Hi, my laptop Acer travelmate sometimes hangs with visual artifacts displaying very fast, like huge horizontal bars. After that it refuses to reboot until I remove the batery and start pating its back like a baby. I have replaced the memory with no permanent success, Could you help me? I have replaced the memory with no permanent success.
This could be graphics card related failure. Can you test your laptop with an external monitor? Do you get same problem on the tix monitor or it appears only on the laptop lapto Hi, I upgraded to a led from an lcd, increasing resolution from to Hi, great site. In my laptop LCD screen cable got burnt and I need to replace it.
Can you please tell me from where can I get this cable for HP dv4t? Hi, Thanks a lot for this info. I ryn into a strange problem. A friend of mine asked me to fix his laptop with broken screen. I replaced it with a new one, but ti I turn on laptop the screen seems to go in check mode displaying only black, white, red, green, yellow screen.
The screen is filled with one colore at a time. No other mumbo jumbo. When I connect laptop to external monitor all is fine but internal LED screen shows only those test screens. Thanks for help. Hi, My laptop just started getting pink colors where the blacks were and green where the whites were so mwssed tried tilting the screen down a little bit and the colors went back to normal.
Now yesterday what to have for dinner on christmas eve I turned my laptop on, the screen was gray with weird colored lines in it, then all of a sudden green streaks ran down the screen.
When it got to the log in window the colors were green and pink and blue and all diffrent things all mushed randomly together. I have a panasonic Cf with a cracked screen. You could still see some of the desktop features, like a moving window and the colour changes during start up. The funny how to know my payback card number is that part of the screen works on the original cracked one so I know inverter and ribbon should be ok.
Also works fine on how to select a personal injury attorney monitor. Im puzzled and stuck. My laptop just started getting pink colors where the blacks were and green where the whites were so i tried tilting the screen down a little bit and how do cactus adapt to their environment colors went back to normal.
Could be bad connection between the video cable and motherboard or LCD screen. That would explain why moving the display fixed the video problem the first time.
You can try reconnecting the video cable on both ends. Reconnecting the cable might fix the problem. Could be failed LCD screen. Before you do anything, test your laptop with an external monitor. Make sure the external image work properly. If you have same problem weird colors, lines on the external monitor, this is graphics card failure. I think your new screens are not compatible with the laptop.
This is correct. If your old cracked screen still works but two new show same problem, most likely messex is nothing wrong with the laptop itself.
As I said before, most likely new screens are not compatible. My question is regarding the model number of the LCD screen if I need to replace it.
How important is the version number on the replacement screen if the rest of the number is correct? I have found a BEW01 V. You should contact the seller. A screen with different version number could be different. Once I purchased a new screen with same model number but different version. The new screen had different mounting bracket locations. I lapyop to return the screen and purchase same version as the original one.
Thanks for all the helpful information on this website. When I adjust the screen back or front the blue tint and the occasional red lines go away. I also noticed if I push the display backwards where the angle is more than 90 degrees the blue tint comes back.
Some Helpful Contents!
How to Fix a Dropped Laptop With a Screen That Is in Colors Step 1. Power your laptop off and open the screen so that you have full access to the LCD. Step 2. Use your Phillips screwdriver to remove all screws from the plastic frame that surrounds the LCD screen. Step 3. Pry the frame off the. Try reinstall the OS as most probably be the crashing of OS. If any external device is plugged into the laptop then remove it before booting as it may prevent the laptop from booting up. Overheating may also be a major factor, check if the air vents are blocked. Try cleaning the vents. Click on the Display adapters to expand it and double-click on the currently active display device. Click on the Driver tab and then click on the Roll Back Driver button.
Are the colors "off" somehow on your computer's screen? Maybe they're washed out or inverted? Perhaps everything has a red, green, or blue hue, or even just too dark or too light? Worse yet, and easily the root cause of those migraines you've been having, is your screen distorted or "messed up" in some way? Are text or images, or everything , blurry or moving by themselves?
Your computer's screen is the main way you interact with it, so any minor issue can quickly become a significant one.
If the problem happens to be one of the more disorienting issues, it can potentially be a health risk. There are several reasons why your monitor might distort images or represent color improperly, resulting in whatever specific issue you see, so let's walk through some troubleshooting until we figure it out. Most of these are easy things to try, but a few of these tasks might be more difficult or unfamiliar than others.
If so, take your time and be sure to reference any instructions on other pages if you need extra help. Power off the monitor, wait 15 seconds, and then power it back on. Some issues, especially very minor ones, can be caused by very temporary issues with your computer's connection that a restart will fix.
If the problem goes away but quickly returns, especially if it's color-related, try leaving the screen off for 30 minutes before powering it back on.
If that helps, your monitor may be suffering from overheating. Restart your computer. There's a slight chance that an operating system issue is the cause of the discoloration or distortion, and a simple restart will do the trick. Restarting is an easy thing to try early in the troubleshooting process. Check the cable between the monitor and the computer to make sure that each end is physically secure.
Completely unplug, and plug back in, each end to be sure. Newer interfaces, like HDMI , often "push" in and "pull" out, meaning gravity can sometimes eventually work them loose from both the monitor side and the computer side. Degauss the monitor. Yes, this is very much some "throwback" advice, considering that magnetic interference, which degaussing corrects, only happens on those large CRT monitors of yesteryear. That said, if you're still using a CRT screen and the discoloration issues are focused near the edges of the screen, degaussing will most likely fix the problem.
Using your monitor's adjustment buttons or onscreen settings, find the preset default level and enable it. This preset should return your monitor's many settings to "factory default" levels, correcting any color issues caused by settings.
If you have an idea about what's "off" with your colors, feel free to manually adjust individual settings like the brightness, color balance, saturation, or temperature, etc. Adjust the color quality setting for the video card. Setting it at the highest level possible will often help resolve issues where the colors, especially in photos, appear incorrect. Fortunately, newer versions of Windows only support the highest color options possible, so this is probably a worthwhile thing to look into only if you're using Windows 7, Vista, or XP.
At this point, any significant discoloration or distortion problem you're seeing on your monitor is probably due to a physical problem with either the monitor itself or the video card. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content.
Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Tim Fisher. General Manager, VP, Lifewire.
He writes troubleshooting content and is the General Manager of Lifewire. Facebook Twitter LinkedIn. Updated on October 30, Christine Baker. Lifewire Tech Review Board Member. Christine Baker is a marketing consultant with experience working for a variety of clients. Her expertise includes social media, web development, and graphic design. Article reviewed on Mar 11, Tweet Share Email. The 8 Best Computer Monitors of If you're not sure how to do any of this, reference your monitor's instruction manual.
Was this page helpful? Thanks for letting us know! Email Address Sign up There was an error. Please try again. You're in! Thanks for signing up. There was an error. Tell us why! More from Lifewire. How to Fix a Black Screen in Windows Your Privacy Rights. To change or withdraw your consent choices for Lifewire. At any time, you can update your settings through the "EU Privacy" link at the bottom of any page.
These choices will be signaled globally to our partners and will not affect browsing data. We and our partners process data to: Actively scan device characteristics for identification. I Accept Show Purposes.