HP p6040d monitor going to sleep when starting

Hi our desktop does not start anymore. Everytime I turn it on, monitor says "no signal", and goes to sleep.
My sister suggested me to check the cables. I reconnect all the cables, and it turned on successfully. The next day, when we turn the pc on, it does the "no signal" again and goes to sleep. I checked the cables again, but this time it does not work.
I don't have another monitor to check if this is a monitor/cpu issue.
By the way, the last 2-3 times I turn it on the cpu beeps(long beeps, for about 2 seconds each) multiple times.
What are your suggestions? Buy a new vga cord?
This pc is not that old, it's just 4-5 years old.

Any suggestions?

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HP Monitor going to sleep on start up

Ok, I've dealt with this problem long enough. I have an HP pavilion Elite, hpe 400f. Monitor worked great on it, then one night while I was checking my email, the picture went scrabled, and ever since I am faced with a "Monitor Going to sleep" error on start up. I can not get into my settings or do anything.
It does not work on other working monitors, I tried a whole new set of cables and when that did not help, I went and bought a new graphics card. That did no good either. But I can not install the drivers until I can actually see how to do it.
So what now? Nothing HP told me works. I am about to go crazy with this. I've begged HP to help me for a year off and on to no prevail.
Can you PLEASE help me?
This question was solved.
View Solution.

Hello @ddanh123,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how your monitor is faced with a "going to sleep" error message on startup, and I would be happy to assist you in this matter!
To restore the display on your desktop computer, I recommend following this document on Flat Panel Monitor Displays Message about No Signal, Signal out of Range, Sleep, or Power Save. This should help examine any possible steps that may have been missed.
If the issue persists, please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

Monitor not going to sleep when close my lid to MacBook Pro

Hi. I was wondering if there was anyway that I could get my Dell E173FP monitor to sleep when I close the lid to my macbook pro. I do not have it on mirroring mode. When I close the lid to my laptop it will just switch my desktop to the monitor instead of the monitor going to sleep with my macbook. When I press the power button and click sleep or go to the apple menu and click sleep it will work though. This really irritates me and I would like It to sleep when I close the lid instead of having to do more. Please help.

Sounds like the system is going into Clamshell mode. Here's some info on that mode.
One workaround would be to disconnect line voltage as that's required for clamshell mode, there may be others.
http://support.apple.com/kb/HT3131
Regards,
Captfred

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When i start up my HP Pavilion, It shows a screen with no vga signal, and then it says "Monitor going to sleep" I do not know what to do? Please help.

I am having the same problem where my Desktop turns on, nothing comes up on the monitor and it goes to sleep fairly quickly, and the fan just keeps running in the tower and is louder than normal. The keyboard does not seem to be responsive and I checked to make sure my monitor is working. How would a bad graphics card make the fans keep running like that?

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Hello @rosendahl14,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how your monitor goes into sleep mode and will not wake up, and I would be happy to assist you in this matter!
To rule out any sleep mode issues with the monitor, I am providing you with some steps you can try below:
Step 1. Unplug the power cord from the back of the monitor and the wall
Step 2. Hold the power button down for at least one minute
Step 3. Plug the power cord back into the monitor and then into the wall outlet (not a power bar or surge protector)
Step 4. Press the Menu button on the monitor
Step 5. Navigate to the Factory Reset option and select it
Step 6. Try a different cable connecting your monitor to your computer
If the above steps did not resolve your issue you can try the monitor on a computer or other device to see if the issue persists. Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
To further diagnose a possible hibernation issue with your desktop, I recommend following the steps in this document on Troubleshooting sleep and hibernate issues (Windows 7). I also recommend following the steps below to reset your system's power management settings:
Step 1. Click the Start button
Step 2. In the search box, type "Command Prompt"
Step 3. Right-click Command Prompt
Step 4. Click Run as administrator
Step 5. At the command prompt, type powercfg /restoredefaultschemes and press Enter
reference: http://superuser.com/questions/669571/windows-8-1-64-bit-power-schemes-gone
Please re-post with the results of your troubleshooting, and I look forward to your reply!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

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Hi:
Thanks for your nterest in the problem. Yes, I have tried pressing both the power button and the spacebar to bring the monitor out of sleep mode. Neither works. The power button is non responsive at this point. Shutting off the monitor and restarting does nothing as well. The only way to get the monitor out of sleep is to disconnect all power and cold start the entire system. However when the monitror goes back into sleep mode the system freezes up again.

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I have an HP w2072a Monitor and a Pavillion p7-1436s computer. I run Windows 8. Since downloading an update yesterday, I cannot get my monitor to work. I have unplugged it, plugged it in, tried another monitor, tried another cable, turned the computer off and on several times, played with the sleep button, tried all the buttons on the monitor--nothing works. If I hit the "On" button, the light turns to blue briefly, I get the screen showing "No signal" then "Monitor Going to Sleep" comes up and the light turns amber---over and over again. Could this be related to the update I received? I think the update said it was setting a restore point, but with no monitor, I am stuck!

Hi dianthus,
Sorry to hear about the issue after doing the update. Do you recall what the update was for? I have included a document regarding your issue.
Computer Starts but Monitor Remains Blank Windows 8:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03518095&tmp_task=solveCategory&cc=us&dlc=en&la...
Give those step a try and let me know how it goes.
Thank you,
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP

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Hello DeniWilco,
Since you can isolate when the issue happened the first thing to consider is doing a system restore to a time before the issue happened.
Can you reproduce this same issue while in safe mode?
If I have helped you in any way click the Kudos button to say Thanks.
The community works together, click Accept as Solution on the post that solves your issue for other members of the community to benefit from the solution.
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Hi,
I've got a 2011, 21.5" iMac. I've had a few screen problems with it, and it's had two replacements now.
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Try an SMC reset. Follow the method for "a battery you should not remove yourself."
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Ron,
The user library folder (~/Library/) is hidden by default in Lion. I assume Apple doesn't want people mucking around with the sensitive files in there. So this is normal behavior.
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Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
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Release all the keys and the power button at the same time.
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Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
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Be sure your Mac is shut down.
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Thanks!

I wouldn't be surprised if this were the case - it does get hot. However, this happens even when I first open it after having it in sleep mode for an entire night... Do you know how to run the diag tool with OS X 10.7?

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HP p6040d monitor going to sleep when starting

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