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My monitor is connected, as is my graphics card, but when I turn my computer and my monitor on, it says that there is no input signal.

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  • Dileep Menon May 11, 2010

    please post wat kind of monitor connector you have - regular 15 pin D connector or HDMI , also what kind of graphics card you have pci/ pci ex / agp or std vga ??

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Hello there:
I would start by trying a different monitor to eliminate the possibility of a faulty monitor.
if nothing happens you are going to need to investigate the video card. you can turn off the computer and open up the case and remove the power supply to the motherboard cord.
now remove the video card from the board and check to see that it isn't damaged or dirty . you can try to put it into a different slot if you are able to. now just hook up the powersupply cord back up to the motherboard and hook up the monitor to the computer and power up the computer than the monitor and see if it works if still nothing than i am sorry but you will be needing a new video card ok? i really hope that this is very helpful
best regards mike

Posted on Jul 31, 2009

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My Acer m1201 desktop computer will not come on.After turning on , then switch monitor off and on , It says ACER, then "no signal" .How can I fix it?


Acer monitors all display the ACER logo when you turn them on. There are one of three most likely issues with the system.

  1. If the monitor has multiple input jacks (VGA/DVI), check to be sure that the monitor is selecting the input that you have the computer connected to. One of the control buttons on the monitor should select input source.
  2. If #1 is not the problem, the monitor itself may be faulty. The input jack may not be working. Test the system with another monitor if possible.
  3. If another monitor doesn't work either, then you have a problem with the on-board graphics adapter for the computer. You will either need to replace the computer, or if possible, install a graphics card into the machine to take over for the failed portion of the motherboard.

Dec 08, 2015 | Acer Computers & Internet

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No input signal


You seem to be talking about the monitor? If you have just added a discrete graphics card ensure that the monitor lead is securely connected. If there is a new card ensure it is fully seated in the card slot, a firm shove may be necessary to ensure that this is the case. If there are multiple connectors try connecting to a different one.
Also, ensure the cable is securely connected to the monitor

Jun 15, 2015 | Computers & Internet

1 Answer

Atxstf


That more than likely means the video (graphics) card inside the computer is bad. The monitor seems to be ok if it is displaying No Input Signal. Isolate the problem by connecting another monitor to the computer. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it t the computer. If the Borrowed Monitor displays the No Input Signal then your video card inside the computer is bad. If the Borrowed Monitor works and displays your desktop icons, then your original monitor is bad and the video card is ok.

Jun 02, 2012 | Gateway Computers & Internet

1 Answer

No video signal


That more than likely means the video (graphics) card inside the computer is bad. The monitor seems to be ok if it is displaying No Input Signal. Isolate the problem by connecting another monitor to the computer. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it t the computer. If the Borrowed Monitor displays the No Input Signal then your video card inside the computer is bad. If the Borrowed Monitor works and displays your desktop icons, then your original monitor is bad and the video card is ok.

Jun 02, 2012 | Computers & Internet

1 Answer

No input signal


Hello there, I am the computer technician that will be assisting you today. My name is Norman-Wynne Damstra.

Welcome to Fixya!

Since you had it repaired and transported it home this fault may be due to a loose connection. Or like you say it could be a simple task of placing the graphics cable in the correct graphics output port.

Install the monitor graphics cable into a horizontal graphics output port if possible. Doing this would therefore connect to the Graphics card if one is installed.

Plugging the monitor graphics cable into the vertical graphics output port would mean that you are connecting your monitor to your computer's onboard graphics output. Which will not work if there is a graphics card installed, in which case one must use the horizonal port, found on the graphics card.

If you have checked that the monitor cable is correctly plugged in and your problem continues then one checks the following:
NB: Turn off your Computer before doing the following:
Make sure the graphics card is secure in it's slot, push down on it lightly when the PC is off.
Check that the power connector to the graphics card is inserted: if applicable.
Ensure that the power supply connectors going to the mainboard are seated.

Check the Memory modules, one may need to be seated or cleaned. Clean the gold fingered connectors with tissue paper.

You may also find it of benifit to look at on eof my published works, entitled My Computer is not turning on!!! Is it dead!!! No POST!!!

Take care!
Norman-Wynne Damstra

Feb 10, 2012 | HP Pavilion Computers & Internet

1 Answer

I have had the monitor for over a year .computer stoped working added new machine.no input signal using 5450 512 mb graphic card computer starts to boot monitor is on dispaly no input signal message or...


check the connections on the backside of ur computer.. are the connections inserted properly.. if they are still try to remove and reinsert the connections properly and tighten up the screws properly.. 2) there is a possibility that the graphic card is not seated properly.. so remove the graphic card and reinsert it once again to check that.. 3) still no go then .. remove the graphic card and try to boot computer with onboard graphics.. if the computer boots up there can be a problem with the graphic card.. check compatibility of the graphic card with ur computer.. let me know if this resolves ur issue regards, guru

May 05, 2010 | HP w1907 LCD Monitor

1 Answer

VGA connection works, DVI does not


Everything seems perfectly normal...

When you connect the computer to the monitor via an analog VGA cable, you get signal on the analog input.
When you connect them via a DVI cable, you feed the monitor's DIGITAL input, so the monitor doesn't get any signal on it's analog input, and informs you about it.
You have to select the digital input from the monitor's On Screen Menu, and then start the computer up - you should see the picture OK.
Also remember to set the display resolution on your computer to match the optimum (native) resolution of your monitor - this will give you optimum picture quality. In case of VA712B it will be 1280x1024.
Good luck and please come back with a testimonial if helped.

Jan 24, 2010 | XFX GeForce4 Mx440 (64 MB) Graphic Card

1 Answer

Switch on computer and message on monitor says no signal input. think it might be the graphics card but can't test because not compatible with old computer mother board


This is more likely to be a problem with the connection between the graphics card & the monitor. The connection might be loose at one of the ends. Another possibility is that the cable connecting the graphics card & the monitor is damaged & needs to be replaced. Also, it might be because of a damaged VGA socket. Check the VGA socket for broken or bent pins.

Oct 31, 2009 | Pine Technology XFX GEFORCE 7600 GT 256MB...

1 Answer

Entering power save


The reason why your secondary monitor is showing no input from computer is because of the display resolution of your graphics card, which is higher than what the Monitor can handle.
What you can try is, when your system is powered up, just go to your display settings, then reduce the systems display resolution to--preferably 800x600, then go to where you normally select the output, and select 'Output to external monitor"...this should send the signal input to the monitor.
I have actually dealt with a no input signal before, and this was what I did.
Hope this helps.
Goodluck!

Jul 14, 2009 | HP ATI FireGL V3350, PCI Express Graphic...

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I have a HP s3020n slimline the pc is running but not sending any signal to the monitor


Well... try un-plugging the VGA cable... ie., the monitor cable behind the tower...... if u get a message on screen saying No VGA Input... can confirm there is no issues with the monitor...

if you are using graphic card in computer unplug that and connect the VGA cable to normal display card came along with the computer and try...

or if you have another monitor... u can try connecting that to the tower which is not sending the signal to monitor and try....

even then you get the same problem... get an new graphic card... (if you dont have other monitor try with new graphic card)

Aug 24, 2008 | Computers & Internet

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