Solved OMG what have I done. "No signal detected!"

[stuckstuck]

I have no idea anymore.

STORY: My new PC monitor just came in as my computer is reinstalling windows.

So I disconnected my old monitor as my computer kept running the installation and I had connected up my brand new monitor.

"No signal detected!"

Okay, so my computer is currently too busy running the windows installation to be installing a new driver to make the new display work so I thought okay, I'll just reconnect my old monitor back up so I can see what I'm doing again.
Reconnected my old monitor up to get the same exact message!
And yes, I have the right cable mode selected. Still nothing. What happened? How do I fix this?

 

[ignatzatsonic]

The first thing you should do is keep your problems in a single thread. You've got at least one other thread going.

Splitting problems related to the same machine in separate threads only confuses readers. People reading one thread have no idea what is going on in the other.

Three minutes ago, I thought you had one set of problems. Now you say you are reinstalling Windows.

I can only guess that these threads are about the same PC?

 

[stuckstuck]

Apologies, the two just didn't seem to relate at all was the reason why I opened this new thread; a problem about a monitor not showing and a computer that was unable to boot from OS seemed like two different issues so I seperated them.

 

[RolandJS]

The monitor should not have to "told" which input jack is being used, correct? Wifey and I use a TV flatscreen for our desktop, and from time to time, it has to be "told" which input to pay attention to.
Concerning Windows not booting, did you already try booting the DVD [OEM or MS Windows] and engaging the Startup Repair choice?

 

[DavidE]

Are you sure the monitor is set to use the correct input that the PC is using, such as VGA, HDMI, etc. ?

Can you try a different cable and connection type such as VGA, HDMI, etc. ?

 

[RolandJS]

David, since his old monitor now generates the same error message, could something temporarily "be afoot" with the computer?

 

[stuckstuck]

Yes I've already selected the input being used ..with HDMI, display port and VGI, nothing.
I have no idea how this even became a problem, this shouldn't even be a problem, but voila ..this thread.

 

[RolandJS]

Howszitgoin' with the installation? I'm hoping that a reboot can lead to a power down and a cold start -- perhaps that will restore video to either the new monitor or the old monitor.

 

[DavidE]

Do you get any output on the screen so you can enter BIOS ?
Did you do a BIOS reset with the new motherboard ?

 

[stuckstuck]

Howszitgoin' with the installation? I'm hoping that a reboot can lead to a power down and a cold start -- perhaps that will restore video to either the new monitor or the old monitor.

I don't know, seeing as I disconnected the monitor whilst it was in the middle of installing windows.

 

[stuckstuck]

Do you get any output on the screen so you can enter BIOS ?
Did you do a BIOS reset with the new motherboard ?

No but that's my point, there is nothing on the monitor! The monitor will I guess attempt to connect?
Then it'll just notify you with a full bright blue screen telling me that there's 'No signal detected!'
It's doing it with the old monitor that I had just disconnected to be replaced with the new one, and now neither are working. -.-
The thing is the old monitor that was connected before I disconnected it was working absolutely fine!
But now upon reconnecting it hoping that I'll just sort out the new monitor when I'm IN windows it doesn't work anymore, I have no idea...

 

[DavidE]

You're probably going to have do a hard reset by powering off using the PC power button.
If the installation in progress is hosed, you'll have to start a new installation again.

You shouldn't connect/disconnect things while the PC is running except devices designed for that such as USB...

 

[RolandJS]

Normally monitors [back in the old days] can be swapped "hot," however, I have not kept up with today's technology.

 

[stuckstuck]

You're probably going to have do a hard reset by powering off using the PC power button.
If the installation in progress is hosed, you'll have to start a new installation again.

You shouldn't connect/disconnect things while the PC is running except devices designed for that such as USB...

I'll keep that in mind. I'll just re-re-install windows now.

 

[DavidE]

Normally monitors [back in the old days] can be swapped "hot," however, I have not kept up with today's technology.

Yea, i don't know, i just wouldn't do it anyway...
And would hot swap work during the Windows installation ??????
I wouldn't complicate/confuse an install with such a change ...

 

[AddRAM]

Why would you disconnect a monitor during the middle of an install.

Connect 1 monitor either to the motherboard or the video card if you have one.

If that doesn`t work, remove the video card and connect straight to the motherboard, making sure you have it set to the integrated graphics (iGPU) in the bios.

When you see the bios on the screen again, you are good to go.

Now re install windows.

 

[RolandJS]

Let me revise my earlier comment: I didn't mean to ok the hot-swap during any Windows installation.
The only safe hot-swap is simply to quick-test a monitor, a mobo, a video card - with another monitor to eliminate a cause or two.
The best way to permanently swap monitors is: after writing down present monitor specs listed in device manager, numb-down Windows to any so-so generic monitor, power off, swap monitors, power on & set device manager to the new [replacement] monitor specs. [The only reason to know the old specs is in case the old monitor is needed again temporarily.]