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Over the course of a computer’s lifetime, it’s only natural that a software or hardware issue will crop up and cause your computer to exhibit strange behavior. This might include one of the computers in your office turning on but not loading Windows, instead displaying a message that the monitor is entering Sleep mode. This indicates either a hardware or software issue; with a bit of troubleshooting you should be able to find out what the problem is.
Check Monitor
The benefit of troubleshooting computer issues in a small office is that you have an abundance of hardware to help you test. By connecting your monitor to another computer, you’ll be able to determine if the monitor is the problem or if your computer (and its configuration) is causing this issue. If the monitor displays Windows without difficulty on another computer and doesn’t go into Sleep mode, continue troubleshooting on your computer. If the monitor has the same issue on another computer, the monitor itself is the problem.
Another Monitor
Grab a monitor from another PC in your office and connect it to the computer that keeps entering Sleep mode. If the same issue occurs with a second monitor, you know that a setting or piece of your computer’s hardware is the problem, possible the video card or memory. If both monitors show you the pre-Windows screens but stop working at Windows, the issue is almost certainly a software problem.
Recent Changes
When troubleshooting software issues, always begin by asking yourself if you made any recent changes to the system. Think about what you were doing on the computer before this error began. Did you perform a Windows update or a system update? If so, Windows may have updated your video driver, and the new driver may not support your monitor. Before the Windows screens loads on boot, tap “F8” to load the advanced boot menu and choose “Last known good configuration” from the menu. This will load the previous Windows settings from before the update.
Safe Mode
If you can access the Windows startup mode, you can also try accessing Safe mode, a version of Windows that doesn’t load an advanced video driver and that shouldn’t cause your monitor any problems. Tap “F8” on startup, select “Safe Mode” and press 'Enter.' If Windows loads normally, the monitor isn’t a problem and the video driver is the culprit. Click in the top-right corner of Windows and type “System Restore” and then choose “System Restore” from under “Programs.” Pick a date on the calendar from before your monitor had the problem with sleep mode and click “Restore My Computer to An Earlier Time.” Windows will revert to the settings it used prior to the new driver.
References (2)
About the Author
Living in Canada, Andrew Aarons has been writing professionally since 2003. Oblivion blood and mud. He holds a Bachelor of Arts in English literature from the University of Ottawa, where he served as a writer and editor for the university newspaper. Aarons is also a certified computer-support technician.
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Aarons, Andrew. 'Windows Won't Start Up: The Monitor Is Going to Sleep.' Small Business - Chron.com, http://smallbusiness.chron.com/windows-wont-start-up-monitor-going-sleep-69811.html. Accessed 07 July 2019.
Aarons, Andrew. (n.d.). Windows Won't Start Up: The Monitor Is Going to Sleep. Small Business - Chron.com. Retrieved from http://smallbusiness.chron.com/windows-wont-start-up-monitor-going-sleep-69811.html
Aarons, Andrew. 'Windows Won't Start Up: The Monitor Is Going to Sleep' accessed July 07, 2019. http://smallbusiness.chron.com/windows-wont-start-up-monitor-going-sleep-69811.html
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Windows computers contain a power-saving feature that will put any connected LCD monitors in sleep mode if they have been inactive for a set period of time. This feature is enabled by default on new computers, but administrative users have the ability to increase or decrease the inactivity time required and they can even disable the feature completely if they so choose. If sleep mode is enabled on your business computer, there are several ways to wake the LCD monitor once it has gone into this mode.
1.
Turn on your LCD monitor, if it isn’t on already. If it is currently in sleep mode, the status LED on the front panel will be yellow. Move your mouse back and forth a few times. This will usually wake up a monitor. But if it doesn’t, continue reading.
2.
Press any key on your keyboard. Within a second or two, the status LED on your LCD monitor should turn from yellow to green or blue (whichever color is your monitor’s “On” indicator). If it still doesn’t wake up, continue to the next step.
3.
Press the 'Input' button on your LCD monitor’s front panel repeatedly at three- or four-second intervals until your monitor wakes up. If your monitor is set to an incorrect input mode, it won't receive a video signal. After you reset the monitor to the proper input mode, it will receive the signal and wake up automatically.
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About the Author
Daniel Hatter began writing professionally in 2008. His writing focuses on topics in computers, Web design, software development and technology. He earned his Bachelor of Arts in media and game development and information technology at the University of Wisconsin-Whitewater.
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Hatter, Daniel. 'How to Get Your LCD Monitor Out of Sleep Mode.' Small Business - Chron.com, http://smallbusiness.chron.com/lcd-monitor-out-sleep-mode-46344.html. Accessed 07 July 2019.
Hatter, Daniel. (n.d.). How to Get Your LCD Monitor Out of Sleep Mode. Small Business - Chron.com. Retrieved from http://smallbusiness.chron.com/lcd-monitor-out-sleep-mode-46344.html
Hatter, Daniel. 'How to Get Your LCD Monitor Out of Sleep Mode' accessed July 07, 2019. http://smallbusiness.chron.com/lcd-monitor-out-sleep-mode-46344.html
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Hi Ruth,
Incorrect power settings or options can cause your computer's monitor to constantly go to sleep. For us to properly isolate your case, provide more information by answering these questions:
Which Windows version/build are you using?
Have you made any significant changes to your device prior to this happening?
Do you also remember changing or modifying your monitor's default settings?
Have you recently installed any updates?
What troubleshooting steps have you done so far to resolve the issue?
Let us know these details so we can move forward to rectifying your concern.
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thanks for your response.Apologies for delay. Difficult to work this website with an old TV screen. I couldn't get into this thread.
Answers to your questions:
2. No changes made to the device.
3 I installed a different monitor (the HP one) a month ago when the previous Phillips monitor just stopped working (it was 10 years old & just died). The actual PC is only 2 years old. For the past month the HP monitor has been working perfectly fine. Then it just went black whilst showing a short video sequence. Since then it goes to sleep every time I reboot/start the PC.
4 No updates installed recently, neither by myself or Microsoft. (I know from past experience that updates often cause problems)
5 I'm not computer literate enough to troubleshoot to any great degree. I did try completely detaching all plugs, inputs, outputs & power from the PC & the monitor & then re-attaching it all again. Monitor still started up fine but after 5 seconds or so it would go to sleep. Sometimes I'd get a flash up saying no signal,but most times it just said 'monitor going to sleep'. I've installed an old TV so that I can use the PC for now.
Monitor Going To Sleep Problem Solution Hp
Regards,
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Hp Monitor Going To Sleep No Input Signal
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Thank you for getting back to us with the needed information. As an initial troubleshooting, we suggest running the Hardware and Devices troubleshooter by following these steps: Angels with scaly wings dragons.
Type Troubleshooting using Windows Search.
Click Troubleshooting.
Click on View All under Control Panel Home.
Choose Hardware and Devices troubleshooter.
Run the troubleshooter.
This built-in tool will help you to diagnose and resolve concerns involving hardware and devices.
Let us know if you need more help.
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