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Monitor is not receiving input from graphics card or motherboard via DP and HDMI

J

jadon

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Jan 25, 2023
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Just a disclaimer, I’m not the best with fixing computer issues or any of that, as I’ve rarely encountered issues when using my pc. However, after installing the newest (and recommended) graphic driver with NVCleanstall, my monitor (msi mag251rx) fails to recognise any input from my PC. I have tried switching from my usual Display Port connection to a HDMI and even using the motherboard HDMI and DP sockets. Nothing seems to work. Any ideas? I’m using the standard DP and HDMI cables that came with the monitor and the HDMI cable has not ever been used. The light on my gpu that I’m pretty sure indicates whether the PSU is switched on is working and the fans on the GPU are spinning. Basically if you were to ignore the monitor not receiving signal, you’d think that my computer is functional. All fans spin as normal, rgb is how it usually is, etc. I’d also like to add that when my monitor is turned on, it automatically looks for a DP signal. When it doesn’t find one, it just goes to sleep. Could this affect how it doesn’t pick up on the HDMI cable connection or would it have given a signal despite auto-scanning DP. Lastly, I had installed the latest bios update for my mobo like an hour or two before installing the new graphic driver, not sure if that’d help but may as well throw that in there.
Any help is appreciated and I do apologise for my lack of troubleshooting skills.

PC components:
GPU - Asus Dual GTX 1080 8gb
CPU - Ryzen 5600x
RAM - 1x8gb 3600 mhz cl16 trident z neo
MOBO - Aorus B550 Elite v2 rev 1
PSU - corsair rm650 gold

Forgot to mention - with the driver installation, I made it so that it’d only install the core driver, literally nothing else. With the additional tweaks section, I had the disable ads and telemetry, clean install, enable msi and remove hdcp definitely ticked. Not sure about the rest of my installation settings. Also, in case it was a bit vague in my first post, I had selected the driver that was said to be the best for my hardware, which was the newest one available (first on the choose version drop down menu). Again, any help would be greatly appreciated.
 
I don't know why you were doing a clean install of the GPU driver - while I was still using nVIDIA I just did that after changing the GPU if at all and never ran into any problems. Most sites providing such utilities recommend not using them all time for a good reason.

The idea was good but the display ports on your MB will not provide a signal as you are not using a CPU with an iGPU.

As far as I can see from the manual the MB does not come with debug LEDs which is bad for easy finding the problem and I doubt your case comes with a computer speaker either - it would present you with some beeps on startup to indicate a problem.

What you should do is plug the monitor into a different source: Some mobile phones come with usb-c plugs that support video out (check the manual of your phone and it requires a video compatible usb-c to hdmi cable) or just another PC or another graphics card.

Should you have had a short of some sort you should be able to recognize a very distinctive smell - you could also check the ports and plugs.

You could also start by clearing CMOS.
 
jadon said:
and remove hdcp definitely ticked
Click to expand...
That is likely what did it - your monitor requires HDCP but your GPU is no longer capable of putting out an HDCP-compatible signal. Unless you can disable HDCP in your monitor's OSD, your only option is to find a backup monitor that doesn't require HDCP, so you can get back into Windows and reinstall the driver with HDCP enabled.

Take this as a lesson to leave things well alone that you don't fully understand. There is a good reason why they are called Expert tweaks.
 
Assimilator said:
That is likely what did it - your monitor requires HDCP but your GPU is no longer capable of putting out an HDCP-compatible signal. Unless you can disable HDCP in your monitor's OSD, your only option is to find a backup monitor that doesn't require HDCP, so you can get back into Windows and reinstall the driver with HDCP enabled.
Click to expand...
Thanks all for the help and advice, I’ve learned a valuable lesson from this experience. I had thought that disabling hdcp would just lower latency but obviously I didn’t do enough research lol. Will try disabling hdcp from my monitor by maybe plugging it into a different pc and changing it there (since my osd isn’t really responding with my no signal pc, monitor controls just don’t do anything) and using a different monitor to reinstall the driver.

If, for whatever reason, none of this works and my pc is incapable of giving out signal to a hdcp monitor, could I just swap out my gpu? I’ve been looking at an upgrade for a while so might as well, right? This is only a last resort thing but I wouldn’t mind it as my 1070 is pretty old now.
Thanks again for the help, I do appreciate it.
 
Clear cmos
 
Update:
I’ve tried using a different pc to try disabling HDCP on my monitor to no avail (no option). I have considered trying a different monitor on my pc but to my knowledge, none of them that I have aren’t HDCP-reliant. I could possibly try use a tv? Not sure if that’ll work but worth trying. After all this, I cleared CMOS on my motherboard but that didn’t help at all. It’s a bummer but it is what it is. Seems like the only way from here is to either buy a non-HDCP monitor (not even sure where to get those or what to look for) or just swap out my gpu. Cheers for all the help and input.
 
Last edited:
jadon said:
and even using the motherboard HDMI and DP socket
Click to expand...
This should work. The "HDCP disabled" only comes into effect once Windows has started, you should see the BIOS screen on all combinations.

jadon said:
I could possibly try use a tv?
Click to expand...
Yes, a TV will work fine
 
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There is absolutely no signal at all? You can't even get into the BIOS?

I highly doubt this is an HDCP issue at all. I had HDCP issues lately myself - only difference being on AMD and not nVIDIA. In my case a driver timeout did trigger it but it did not prevent Windows form providing a picture, Windows was running fine except one thing: You are not able to watch HD video content or anything else that will require the OS to recognize you're hardware does support HDCP.

@Assimilator If the PC is not putting out a signal even right before the driver ticks in your theory is void.

@jadon Do you have an Amazon Fire TV stick? Hook it up to the monitor. It does come with HDCP and should your monitor still be ok prevent it from goint into standby, allowing you to get into the monitor's setup menu where - as ThrashZone recommended - you can reset the monitor to factory defaults should it not be possible to reset it by pressing some buttons.
 
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Hi,
Think all monitors have manual buttons on bottom of screen frame that can be used to reset them to default config.
Windows will usually install generic drivers for all monitors if needed

Have you tried bootable iso installer ?
But yes even using hdmi on another monitor will work fine as long as the tv source is pointed to the hdmi port connected to the pc.

Fast start will likely make it tough to get into bios unless you repeatedly start and stop the pc from starting.
Then you may get use F1 to go to setup/ bios and reset oc.
 
W1zzard said:
This should work. The "HDCP disabled" only comes into effect once Windows has started, you should see the BIOS screen on all combinations.


Yes, a TV will work fine
Click to expand...
Can't believe I haven't tried getting into BIOS, but I did just then and I got in. Thanks for the reminder. What do you suggest I do from here? Also, I've purchased a GPU, due to come tomorrow. As mentioned earlier, I needed an upgrade anyways so I don't mind swapping it out. Would that fix the issue or would I need to do things in between that? Thanks.

Update: I've booted windows in safe mode and am currently reinstalling the graphic driver in recommended settings. Thank you all for the help and advice. Still upgrading GPU when it comes haha
 
you need to find a way to boot into safe mode of your OS, since the PC itself boots and the hardware is fine


Otherwise create a windows USB installer on another PC and reinstall windows
 
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