Why does my computer screen turn green? How can I fix it?
If it’s hardware, several possibilities spring to mind:loose wire in the VGA cableloose/bent pin in the VGA connectorweak red or blue emitter gun (applicable to Trinitron tubes and the like)loss of the sync signal (on the green-gun wire)I’d start diagnosis by wiggling the cable at various points.
My computer will boot but won't load the homescreen. It only shows a black screen with only the mouse visible. What is the problem?
Please try this.Start tapping immediately on F8 key as soon as you power on your computerKeep tapping until you see pre boot menu optionsTry it one more time if you miss it and go to blank screen with the mouse pointer on itOnce you see those options, select "Safe mode with networking" (You can use arrow keys on your keyboard to select/higlight it and hit "Enter"It will let your computer boot in safe mode (Icon might appear bigger, but that's normal)Go to "Start" > "All programs" > "Accessories" > "System tools" > "Disk cleanup"Hit "Ok"it will scan and bring the list of junk files on your screencheck all the boxes except "Recycle bin" and hit "Ok"It will remove all junk data from your computerRestart the system normallyif it does not work, select "Last Known Good Configuration" from same Pre boot menu options. (It will restore your system to most recent backup, but you might lose some data)or you can try this "Go to Safe mode with networking" and click on "Start"a box will appear underneath "All programs"type "MSCONFIG" and hit "Enter"click on the third tab "Startup", it will come up with all services that load when you boot your computer each timeUncheck all boxes and reboot your computer (it might prompt for it)now if your issue is resolved, check all the boxes one by one, and see which service is causing this issue. uncheck the box which is causing this issue, it might take some time but you can resolve this issue this way.
Why is my computer screen changing colors randomly?
To determine culprit:Step 1: Check the PC’s video output with another monitor. If the issue is solved, the monitor might have a problem. If not proceed to step 2 with original monitor.Step 2: Test monitor with another system. If the issue persists check another HDMI port. If the issue still persists go to step 3.Step 3: Try another HDMI cable, or try a VGA cable if you also have that available. If the problem resolves you had a bad cable. If the problem persists then we can be reasonably certain the fault lies in your computer, and not the monitor or the cable. You could be looking at a problem with your graphics card, but before concluding this there are a few more steps.Step 4: Check to see if your video card driver updated recently - if it has, roll back the driver. If the issue is solved then the driver update had an issue.Step 5: Verify Windows display settings. Check the adapter options under the Display Settings menu - verify the appropriate refresh rate and color settings are selected for your monitor.Step 6: Check advanced graphics card settings. For example with Nvidia cards you can access the Nvidia control panel by right clicking the desktop.Some really interesting color stuff can happen with the color depth settings found under the Display heading, Change resolution subheading. Windows sometimes changes the setting from 8 to 12 or vice-versa, and it turns the display into an LSD-fueled horror show. Personally I think this is your problem. Simply change to the normal color depth for your system (there shouldn’t be too many options here). If this doesn’t help you can check the color settings for the card.Step 7: Try updating the driver for the graphics card. Sometimes a driver update can resolve some weird problems.Step 8: Recalibrate the monitor settings.You can also see if booting into safe mode solves the problem. If you use an external GPU along with a cpu that has internal graphics support try using the CPU by plugging the display to the motherboard outputs. Note that you may need to enable this in UEFI/BIOS if you or the manufacturer set the computer to only use the external GPU.
What does it mean when your computer displays a "VGA No Signal" message?
It means that the monitor is working but does not see the computer is turned on. The message means your monitor is working okay but is not getting a signal from your computer. The best thing to do is make sure your computer is powering on. Look on the back of your computer and see if you more then one video port on the back.They will look like the blue one or the white one. See if you have 2 of the blue or 2 of the white. If you do then move your monitor cord to other video port and see if it works or not.If that is not the problem then there is something wrong with your computer is not turning on or you have a problem that you are getting any video from your computer.
My computer screen turned blue. BSOD?
Just reboot your machine...it should be fine...but if it's happened again...you have more serious problem..and No you don't need to buy a new monitor...it has nothing to do with the BSOD
Why is there a white line on the screen of my laptop?
I have seen this in some of my friends laptops and monitors. Try the following:Reconnect and turn the computer back on. Look for the lines at boot up: if you see lines before Windows loads, the problem is either with the video card, the video connection cable -- whether HDMI or VGA -- or the monitor itself. ... Right-click on the Desktop once Windows loads and choose “Screen Resolution.”Change the resolution just to see if the line still appears. If it does, it's the video card.If more lines appear, it's the screen or the Wiring behind the screen.One other test… if you have an external monitor, hook it up to your computer and see if lines appear on the external monitor.. if yes, it's the video card.Hope this helps
Why is my laptop screen half black? How can I fix it?
ALL of these people are correct. I work for Dell as a field technician. It’s already been said, but I’ll repeat it for emphasis:First, hook up an external monitor. If the display is good, then the graphics chip is fine… and that’s probably good news, because on most (not all) laptops, you’d have to replace the motherboard, which will not be cheap. If a motherboard needs replacing, expect to spend $100 plus labor, unless the laptop is an extremely common model (such as the Dell Latitude D500 series, which was purchased by a lot of schools).However, something which has not been said, is that it doesn’t necessarily mean that the motherboard is good. There is a ribbon cable that connects the LCD to a connector on the motherboard. It is possible for the connector itself to fail. In 15 years of working for Dell, I’ve seen it happen once. Though if it fails, usually nothing displays at all.In any case, if everything shows up on the external monitor, the most likely culprit is that either the LCD has cracked, or the ribbon cable has failed. A specialist might have a replacement LCD on hand, or at least one that he can use temporarily to determine if the cable is bad.