Reinstalled Windows 10 on my PC. Now my monitor doesn't get input from  

Hello everyone,

So, long story short, I recent brought myself a new PC. Since my brother didn't have his own PC, I wanted to give it to him.

While reinstalling windows 10, to give him a fresh experience, I noticed after a while that my monitor didn't receive input. After two hours or so, I decided to restart my PC since I couldn't see what went on. Also after the restart it didn't work.

I tried using a different HDMI, but I don't have a VGI monitor here, which is the other output on my GPU.

I think it doesn't recognize my GPU anymore after the re installation, but I don't have any other outputs other than my GPU.

I hope someone recognizes this problem, and is able to help out here!

Much love and thanks in advance

If you have an adaptor use that to connect the GPU to your monitor or go and buy one if you don't have. Connect the adaptor to the monitor cable and then connect the adaptor to the GPU port. Your monitor should be back up right away.

The adaptors are pretty cheap, where i live they are like 3-4 euro just be sure to know the port of the GPU and the monitor cable type so you know what type of adaptor to buy.

Maybe your GPU has VGA because monitors are also VGA, that's not to say ALL monitors are VGA but i don't know of any VGI monitors.

My GTX 950 has DVI and my monitor an old 10 year LG LCD which has VGA. I had to buy an adaptor because i didn't know the GPU had DVI. Just goes to show you always need to be well informed before buying something.

Hi Mikey,

What kind of adaptor are you talking about? Are you talking about a VGI-HDMI switch or something?
My HDMI cable worked earlier today, until I reinstalled w10, which broke the HDMI connection from my GPU to my monitor.

Eriknut said:

Hi Mikey,

What kind of adaptor are you talking about? Are you talking about a VGI-HDMI switch or something?
My HDMI cable worked earlier today, until I reinstalled w10, which broke the HDMI connection from my GPU to my monitor.

Eriknut are both your GPU and monitor using HDMI ? I mean your GPU has HDMI port and your monitor's cable is HDMI ?

For me, my GPU has DVI port and my monitor's cable is VGA. So i had to buy an DVI - VGA adaptor in order to connect them and for the monitor work because they had different size. The adaptor is just an intermediate port that connects your GPU to your monitor if both GPU and monitor have different ports and can't connect normally to each other.

Eriknut it sounds like the possibility of a driver being needed??
I had a similar mess and a completely buggy unstable Win10 in a constant boot, short period of operation usually less than 5 minutes and bang! a blue screen of death crash before I could attempt to install a new proper driver! A continuos buggy boot, crash, screen of death, and reboot.
Get the exact model of your GPU or if you have onboard VGA get these drivers and totally extract to a USB and reinstall 10 but at the beginning select the option of adding drivers first so they can be installed during installation.
Another mess I had was on a Gigabyte AM3 board I have with onboard VGA and also a PCIe slot.
All drivers were available BUT the drivers for the onboard VGA were not! I had to go into BIOS and disable the onboard because Win10 kept trying to install incorrect drivers for that chipset and the result was an unstable operating system. My UEFI or BIOS (I forget what it has) gave me 3 options and they are allow both to function, PCIe only or AGP only with auto detect so I selected disable onboard and enable PCIe and only PCIe GPU instead.
It is now running stable and fine and is being used as a media streamer for my TV

Hi Hennmann,

Thank you for the reaction. Unfortunately I don't see how it is possible to install the corresponding drivers without a screen. I can't use VGA, since my monitor doesn't support it. I guess I can try it somewhere else. I can't literally get to the BIOS, since I can't see the windows boot or do whatever...

Can you see the startup screen? That should appear even if the Windows installation is corrupt.

You could double check it by disconnecting the boot drive. With that absent, if you get no display, it's not a Windows problem.

how come nobody suggested safe mode yet :)

It depends regarding safe mode. As bobkn mentioned if it doesn't reach the bootable device or if you can't even enter BIOS/UEFI then it's not an OS problem.

- - - Updated - - -

And after re reading the original first post I have had problems similar such as a Biostar Motherboard given to me that was condemned by somebody a so called expert who said it was shot. No video as well with a GPU stuck in the PCIe slot. For starters I have received a few boards that were dead not displaying a thing and not even giving a BIOS post. Just removing the CPU and reinstalling it did the trick during the steps of remove/disconnect everything and install basic ram and try again and the CPU is the last resort. Okay the Biostar attempts to start including accessing the hard drive etc. but no video. In my stash I have a turn of the century PCI video card for occasions like these and I plugged it in a PCI slot and connected a VGA monitor and doing this we now have video! As it turned out PCIe was disabled in BIOS because of dual PCIe slots and also in BIOS is the option of disabling them and enabling PCI video. This was what it defaulted to when the battery was removed.
Days like this prove anything is possible and is why I'm in no hurry to condem hardware until the pulse remains flatlined on the hospital bed. This is also why I have some of this prehistoric hardware for the last resorts including a PCI Ethernet card in case specific drivers have to be hunted for for onboard Ethernet.