Question No signal received on monitor

May 4, 2023
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Had this pc for 5 years now, switched it on the other day and it came up with no signal recieved on the monitor.

It's connected to the main monitor via a display port cable and to a graphics tablet via a HDMI cable so I plugged in and turned on the tablet and that worked fine. I leave the HDMI cable plugged in to the back of the pc but not plugged in to the tablet when it's not in use as having that connected (even when the tablet is switched off) limits my 144fps monitor to 60fps for some reason.

Tried connected the monitor via the HDMI port and it worked fine.

Replaced the display port cable with a brand new one, still no signal received.

Prior to this occuring there has been a few times where the monitor would come up with display port in the top corner as if it I had changed the input, never long enough to lose the picture though.

Would I be correct in guessing this means either the display port output on the graphics card or the display port input on the monitor has died and if so how would I check which it is?
If not then anyone got any idea what's broken?



Specs

Overclocked CPU Overclocked Intel® Core™ i7-8700K Six Core (3.7GHz @ up to 4.8GHz)

Motherboard Gigabyte Z370 AORUS Ultra Gaming: ATX, LG1151, USB 3.1, SATA 6GBs - RGB Ready

Memory (RAM) 16GB Corsair VENGEANCE DDR4 3000MHz (2 x 8GB)

Graphics Card 8GB NVIDIA GEFORCE GTX 1080 - DVI, HDMI, 3x DP - GeForce GTX VR Ready!

1st Storage Drive 3TB SATA-III 3.5" HDD, 6GB/s, 7200RPM, 64MB CACHE

1st M.2 SSD Drive 1TB SAMSUNG PM961 M.2, PCIe NVMe (up to 3000MB/R, 1700MB/W)

Power Supply CORSAIR 650W TXm SERIES™ SEMI-MODULAR 80 PLUS® GOLD, ULTRA QUIET

Processor Cooling Noctua NH-U14S Ultra Quiet Performance CPU Cooler

Thermal Paste COOLER MASTER MASTERGEL MAKER THERMAL COMPOUND

Sound Card ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)

Wireless/Wired Networking 10/100/1000 GIGABIT LAN PORT (Wi-Fi NOT INCLUDED)

USB/Thunderbolt Options MIN. 2 x USB 3.0 & 2 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS

Operating System Genuine Windows 10 Home 64 Bit - inc. Single Licence [KUK-00001]
 
Last edited:
May 4, 2023
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Yes that's correct.

Check other DP ports on GPU first (but there is possibility that all of them died). As for monitor side, you would need another monitor with DP port.
I checked the other DP output on the graphics card and it still didn't work.

I suppose this would make it more likely it's the monitor as it's unlikely both on the GPU would die at the same time right?
 

Zerk2012

Titan
Ambassador
I checked the other DP output on the graphics card and it still didn't work.

I suppose this would make it more likely it's the monitor as it's unlikely both on the GPU would die at the same time right?
Remove the video card and check the DP port with the built in graphics from the motherboard to test the monitor.

For the DP ports not working on the video card anything can happen.

Remove the HDMI cable.
 
May 8, 2023
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I resolved this issue yesterday. I even went out and bought a new card and that wasn't the issue. I hope this resolves your problem too.

I was using Nvidia's Driver installation software "GeForce Experience" to update drivers but installation was failing with no indication of failure.

How I fixed it:

1.Go to Nividia.com (https://www.nvidia.com/download/index.aspx)
2. Click "Drivers"then enter your specs and continue
3. Take note of the "Version" and keep this open
4. Open Device Manager > Display Adapters
5. Locate the GPU and Right-click > Properties

If the last 5 digits of your Driver "Version" numbers don't match Nvidia.com go back to the webpage and download them.

Once you download and run the installer

1. Open the Nvidia Driver that you downloaded and let it extract the files and folders.
2. Accept the licence agreement.
3. Select "CUSTOM".
4. Install what you want.
5. Make sure "Clean installation" is checked.

It will initially remove your old drivers then need to restart to complete removal.

**once it restarts you WILL see a black screen (no signal) if your hdmi is plugged into the GPU and not the motherboard** Just wait while your pc completes the installation for hdmi output to be restored,

Note; if you are like me and have prebuilt . . . . you do not have a motherboard video output then you will have to try and remote access your pc or buy a new motherboard with hdmi port D: