why won't my monitor turn on when computer is on

Every day, hundreds of computer monitors break down, and if you have a LCD monitor that you bought fairly recently and have questioned why it won't turn on anymore, it's most likely a power problem that can be fixed to save you hundreds of dollars. The main reason for the laptop to not turn on will be lack of power supply. If you remove the plastic cover to connect a monitor (VGA or HDMI), the video will not work unless the graphics card is removed. If you have tried all the steps in this document and are still having the issue, the hardware is probably faulty. Remove the screw(s) that retain the panel or cover from the rear of the computer. This speaker exists to give you error codes when something goes wrong. You might even want to run a malware scan while you’re in there, use System Restore, or even a recovery drive (if you have one) to roll back to a known working configuration. If your laptop screen is still not working, you should try connecting your laptop to a monitor. If the monitor does not work on another computer, the monitor may be defective. In particular, ensure your monitor is plugged into the wall and receiving power, and double-check that the cable going to your PC is firmly plugged in at both ends. I have no idea what the model # of the monitor is. This newsletter may contain advertising, deals, or affiliate links. To help determine whether the problem is caused by the computer or the monitor, turn on the computer, listen for sounds, and look at the lights. Remove all memory cards, USB flash drives, and CDs/DVDs from the computer, turn off the computer, and then open the computer case. 1. With the monitor plugged in, press the power button on the monitor. Pic. HP's Virtual Agent can help troubleshoot issues with your PC or printer. I’ve had situations where a specific USB port would prevent the computer from booting if something was plugged into it—weird, but it does happen. How does HP install software and gather data? This morning when I turned the computer on the monitor remained black. If you had to straighten any pins, reconnect the monitor making sure that the video cable is firmly connected and then turn on the computer and monitor. Go to. If the computer won't on because of a power supply problem, the monitor certainly can't display anything from the computer. Turn the monitor off and then back on again (while the computer is on) to see if an image is displayed. PCMag, PCMag.com and PC Magazine are among the federally registered trademarks of Ziff Davis, LLC and may not be used by third parties without explicit permission. Make sure that it is connected properly and the connecting screws are tight. Inspect the video cable and video connectors for damage. Computer powers on and then off. If you have a graphics card, your monitor should be plugged into that, not the HDMI port on your motherboard. Connect the original monitor and change the display resolution to match the default setting for the monitor. I've taking my computer into a shop and had it looked at. Another major reason for Windows 10 won’t detect HDMI monitor is graphics driver issue. If you still can’t see a picture when your computer boots, you may have a driver or other software issue. If your computer is on, try rebooting it, and see if the problem persists. If the external monitor is working, then there are a few things you should try: 1. While pressing those keys, press and hold the Power button on the computer for 2 to 3 seconds, and then release the Power button but continue to hold the Windows logo key and the B key until the HP BIOS update screen displays or you hear a beeping sound (usually 8 beeps). With the monitor off, I disconnected the tower and moved the computer. To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (such as a conductive foam pad), and wear an ESD wrist strap connected to a grounded surface. Turn the monitor off and then back on again (while the computer is on) to see if an image is displayed. I will be glad to help you. Check your Monitor’s Backlight When your computer is on and your monitor is showing just a black screen, use a torch and shine it directly on the screen. This is easy to fix. Some monitors do not have on-screen messages but instead use the lights to indicate no signal. First power down the computer and remove the battery and plug in the power adapter. With the power cable removed press and hold the power button on the front of the computer for 5 seconds. If the monitor still displays a black screen or displays a, Use this step to configure Windows to use a display resolution that is compatible with the main monitor device. The better solution is to connect an adapter to make the connection. At such times, all other internal components will be operating but not the whole computer. The following links may help you. If the light on the monitor remains off, the monitor is not receiving power from either the wall outlet or the power adapter. If you’re lucky, you’ll reboot into Windows. All I know is it's a Dell 15' flatscreen that I bought with the computer. 3. Confirm the monitor is correctly connected to a power source, and it's turned on. All cables were firmly attached to the monitor. A [software component] will damage your computer message displays when printing or while installing - Click Here. See if your computer will boot when plugged into another monitor or your TV. If the light comes on, the monitor has power. Answer Save. If not, you can head back to that Troubleshooting menu and try the Startup Repair option. Modify your browser's settings to allow Javascript to execute. If the monitor is still blank, continue to the next step. Your session on HP Customer Support has timed out. Check the power cable at the wall. For further troubleshooting steps, see. If the monitor remains blank, turn off the computer and continue troubleshooting. When your computer boots up, you’ll usually hear a small beep from a speaker that lives inside the tower. There are noises that sound like it's trying to boot up but to no avail. If, after you've added new hardware, the computer turns on but is not beeping and the monitor isn't displaying anything, see: POST troubleshooting steps. Not all of them do; consult your motherboard manual if you’re unsure or having trouble locating it. Exactly. The display of third-party trademarks and trade names on this site does not necessarily indicate any affiliation or the endorsement of PCMag. If the computer makes a beeping sound when turned on, a card, cable, memory module, or processor inside the computer might have come loose. Once you’re done with that, see if your computer will reboot normally. Many Gateway monitors I've used seem to refuse to turn on when they don't recieve a signal and seem to frequently refude to acknowledge a … Turn on the computer and repeatedly press. If the computer is not turning on because of a power issue then the monitor certainly can’t display anything from the computer. My ASUS laptop was working just fine all day and out of nowhere just turned itself off. With the monitor and computer off, try to straighten bent pins with a small metal tube, like the tip of an empty mechanical pencil or the tip of a retracted pen. Both should have lights on the front that brighten up when receiving power, and it’s completely possible you bumped the monitor’s power button at some point without realizing it. For example, the problem could be as simple as having the wrong charging cord which means you aren’t getting the proper voltage, or it could be that the power supply has failed. Troubleshoot a video connection from a monitor (or a TV being used as a monitor) to a desktop computer. The screen just stayed off. HP can identify most HP products and recommend possible solutions. Slide the side panel off from the rear of the computer. You might be able to get a picture if you boot into Safe Mode, though doing so is a bit difficult if you don’t have a working screen to begin with. Whitson Gordon is a writer, gamer, and tech nerd who has been building PCs for 10 years. {{#each this}} Use the following steps to change to a compatible display resolution and color depth setting from a standard graphics mode. It could be a failing stick of RAM, a CPU that’s overheating, or a video card that isn’t seated properly. Be careful not to slide skin along any interior metal edge of the computer. Your monitor light will likely be amber/yellow if your computer has stopped sending information to it. Plug in the power cable and turn on the computer. Why won't my monitor turn on? Unplug all cables except for the power. Note each cable location if you do not already know where it connects. To troubleshoot a computer that does not start, see. Your coffee is brewed. Install the new graphics card and connect the cables to the card. Click here, Connect with HP support faster, manage all of your devices in one place, view warranty information and more. Occasionally, your PC may try to boot from the wrong hard drive—and when it doesn’t find an operating system, it will just give you a black screen (sometimes with a blinking cursor in the corner). Audio or sound issues? Try removing video card from the affected computer and installing it in another computer. Connect the computer to another monitor to determine which device has the problem (the monitor or the computer). You go to turn on your computer, but nothing shows up—all you see is a black screen, with no explanation as to where all your precious memes of the day are hiding. My computer and monitor are about 3 years old. Update your device drivers. I shut down and turned the monitor off. Turn on the monitor and wait about ten seconds while the computer starts. Why Won’t My Monitor Turn On When I Start My PC? While the computer is starting, disconnect the video cable. Anonymous. Once you figure out the problem, fixing it should be a piece of cake. There is a power indicator light located on the monitor case. If your monitor works on another computer, the video card is bad. After you have reconnected the power cord, turn on the monitor (while the computer is on) to see if an image is displayed. Here are some troubleshooting steps to take if your monitor fails to display a picture. If you have any extra cables lying around, try another one—maybe the cable you’ve been using is damaged, or one of the ports is malfunctioning. Replace the side panel and screw(s), reconnect the computer cables, and turn on the computer. Make sure that you have the monitor power adapter cord plugged into the power connector. This includes removing USB flash drives and memory cards from card reader slots. He eats potato chips with chopsticks so he doesn't get grease on his mechanical keyboard. I was playing a game, and boom, my monitor just turned off to stand by, i restart my computer and it still says i'm on stand by, i know the monitor isn't broken, but why won't it turn on? Motherboard, but make sure that you have the monitor does not Recognize Second monitor not... New Now to get our top stories delivered to your inbox every.... Call the LG technician and see what they have to take if your motherboard case... Indicate no signal can head back to working hard ( or reinstalling your... Works on another computer, the monitor is still blank, continue to next... Matches the power button on the monitor power cable removed press and hold the connector! 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You can enable or disable is usually not turned on top stories to... An image is displayed not Recognize Second monitor list of options you can also try loading Defaults... To determine which Device has the problem persists an external monitor the external monitor is still blank, continue the... Light located on the computer shop did n't find anything wrong with the computer another! Click an affiliate link and buy a product or service, we be! On how to adjust the display resolution, then there are noises that sound like 's. Tv being used as a monitor outside edges of metal panels can cut skin 2 minutes after on. Necessarily indicate any affiliation or the power supply source, and tech who... Not turned on other software issue devices in one place, view warranty information and more been building for!

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