Monitor No Input Signal Going To Sleep
Stephanie Dejoode
So just today, I have this problem where my monitors does not display anything after start up. I would turn on the CPU and everything runs fine (fans, power supply, etc) but my monitors stay undetected as if my computer was never turned on.
So far nothing has worked and I'm completely stumped. Everything was working fine until my computer randomly crashed darker today and then froze in start up to now not displaying anything. Any help would be highly appreciated and thanks beforehand.
All i've done is switched on gaming boost and A-XMP in my bios settings and got a blank screen showing no signal. I've tried everything mentioned in that question but haven't succeeded. Help me please.
It could be your PSU. My monitor would intermittently should the desktop but thengo black with the words "NO SIGNAL" and the monitor followed by going to sleep. Sometimes rebooting cleared it up but when my furnace went dead a few days ago the house temperature dropped from 70 to 37 degrees. At that temp the monitor never came on. I switched out the monitor with another and had the same results. Thinking the temperature was a factor I ran a hair dryer on high for a minute and suddenly the picture on the monitor came on. The picture stayed on for about 5-10 minutes then went black as the power supply cooled. I warmed it again and the picture resumed. At that point I felt very confident it was the PSU so I ordered and installed a new one and the monitor and computer are both working like new.
Are you getting post beeps on startup ? If not you may be dealing with a power issue . Just because your fans are running and your motherboard light comes on doesn't mean you have enough power in the power supply to run the machine .Power supplies can die slowly and still appear ok .If you have access to another power supply try changing it out . You may also want to try a different monitor or test your old monitor on another computer. depending on your motherboard you could try resetting the mem button common on Asus boards. Also you mentioned you've disconnected the power and that you've held down the power button for extended periods . Did you do this together? if not try unplugging from power and holding the power button down for roughly 60sec then plugging in and rebooting. Finally as dumb as this is going to sound but it happens to the best of us... is your monitor turned on and plugged in? Just sayin Hope something here helps and good luck
It could be your PSU. My monitor would intermittently show the desktop but then go black with the words "NO SIGNAL" and a few seconds later the monitor followed by going to sleep/powered down. Sometimes rebooting cleared it up but when my furnace went dead a few days ago the house temperature dropped from 70 to 37 degrees. At that temp the monitor never came on. I switched out the monitor with another and had the same results. Thinking that temperature was a factor I ran a hair dryer on high for a minute, blasting the hot air on the PSU and suddenly the picture on the monitor came on. The picture stayed on for about 5-10 minutes then went black as the power supply cooled. I warmed it again and the picture resumed. At that point I felt very confident it was the PSU so I installed a new one and the monitor and computer are both working like brand new.
Pc show display after removing battery or change cmos setting but when i shutdown and start again then again no signal error everytime when i remove battery or change cmos pc show display but only for one time
This is the first time I've ever decided to post a piece of advice to any website/message board because I think it would really help a lot of people. I had the exactly same problem after installing a new motherboard. I tried everything I could think of and all the tips I found online; to list just a few: updating my BIOS, reinstalling Windows 10, changing from DP cable to HDMI, reinstalling all my drivers, reinstalling just graphics drivers, plugging and unplugging my Nvidia graphics card several times, cleaning/vacuuming every single component (my comp is as clean as a whistle - looks brand new, trying all kinds of combinations in BIOS settings, etc - nothing worked.
And here is how I SOLVED IT! After reading some unrelated advice about the "turn on fast start-up" function in Windows 10 and reading about how it can cause certain booting problems, I thought I might as well give it a try, nothing left to lose. So, I went to Control Panel/Power Options and under "change setting that are currently unavailable" turned off the fast start-up. Voila, problem solved! I'm guessing there is was kind of incompatibility between my motherboard (Intel Desktop Board DQ77MK) and this particular Windows setting. After spending a week dealing with this issue and going out of my ever-loving mind, you can imagine my relief. I'll make sure to post this advice on as many message boards I can to help other miserable souls like myself.
@jayeff there are 2 different issues here, but the symptoms are the same. One is purely a hardware issue(RAM, PSU cables and other) the ohter one is a software issue. Iv'e eaten my nails over this. I swapped everything, mobo, psu, monitor, gpu, cpu bios update etc.. all of it and was still experiencing this when the system needed to auto reboot, for an update for example. NOTHING WORKED. The only thing that remained unchanged was Win10. This change in power options has worked for me. Finally..
If your motherboard has an onboard graphics card you might want to try unplugging your PCI-E graphics card and plugging a monitor into the onboard graphics card. This will verify whether or not it is your PCI-E graphics card that is faulty or not.
I had the exactly same problem after installing a new motherboard. I tried everything I could think of and all the tips I found online; to list just a few: updating my BIOS, reinstalling Windows 10, changing from DP cable to HDMI, reinstalling all my drivers, reinstalling just graphics drivers, plugging and unplugging my Nvidia graphics card several times, cleaning/vacuuming every single component (my comp is as clean as a whistle - looks brand new, trying all kinds of combinations in BIOS settings, etc - nothing worked.
And here is how I SOLVED IT! So, I went to Control Panel/Power Options and under "change setting that are currently unavailable" turned off the fast start-up. Voila, problem solved! I'm guessing there is was kind of incompatibility between my motherboard and this particular Windows setting. After spending a week dealing with this issue and going out of my ever-loving mind, you can imagine my relief.
Lowering refresh rate of monitor worked fine for me. I had similar problems with Samsung odyssey g7 on 240 Hz refresh rate. Monitor couldnt keep up with booting i guess so i missed boot screen and couldnt enter the bios. I don't think its power issue since i have 1000 W brand new psu of Platinium quality.
I have had similar problems - main monitors not lighting up - BUT this morning after reseating graphics card etc - still nothing - I then turned the monitor - which was ON, turned it OFF, and after a couple of tries it DID show the screen and allowed me to log -i n
Did you completely reset your hdd or did you just unplug it, I tried the comment where you go to control panel and search the power option and turned off fast boot up. This fixed my problem but I feel like my pc is slower and I just built it. It has,
I solved this issue by swapping my PSU with a new one. The Mobo was indeed receiving power and everything was turned on including my ARGB fans and AIO cooler. I did everything from reseating the RAMs and unplugging all the cables. So I thought that it was a CPU issue and the first thing I check was if it receives power from the CPU power cable. Turned out, the 8 pin cable was broken.
I have been trying to fix this for a while now, and I have replaced my power supply, and my motherboard allready but that doesn't
seem to have worked. After watching more videos on it I found someone that said "If your mouse doesnt turn on or light up than
it might be a ram issue" but I tried a different pair of ram and that didnt work either. I have basically done everything. This problem occurs before I even get the option to go into the BIOS I need help.
If mouse lights up then that means mobo is getting power from psu even without powering on but keyboard lights indicates that pc is running and the processor and rams are ok and right now im having these screen issue and tried everything swapped all parts except mobo and processor and from some yt videos i suspect its a short on the northbridge chipset of mobo and maybe going to repair shop will be best just hate those people just charges way too much
Open your PC case and locate your video card. Remove the card and then replace it firmly in its slot or, if possible, insert the video card into another slot on your motherboard. A video card that is not making a firm connection will not display images to the monitor. Close your PC case and test the monitor again.
Hi BarbEl,
I'm sorry to hear that the CD installation did not resolve the issue. I would like to assist you with this, and come to a resolution. I would just need to know the full model number of your computer. I have included the 'Guide to finding your product number'.
Thank you.
My problem is rather silly - my monitor is brand new, has been working well for the past 2 days and I went to switch it to HDMI. Instead of HDMI, I accidentally switched it to VGA. I don't have a VGA cable so it is stuck at "No signal" then shuts itself off into power saving mode before I can even access the monitor menu again. I am going to attempt a 15 second hard reset on my tower. Hopefully it works.
I understand you accidentally indicated you wanted to use VGA instead of HDMI. The best thing to do if you cannot fix it on the Monitor menu. Use f11 on start-up and do a system restore. It should be Ok to restore it back to when it was working correctly.
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