I messed up with on board graphics drivers, managed to fixed it, but still have some doubts.

[alestaxtar]

First of all, big apologyze for my english.
Motherboard: Gigabyte GA-B85M-D3V
GPU: GTX 960 Windforce

Recently I was looking on the internet for a way to change the brightness on windows 10 since it doesn't show the option to do so. I went to microsoft support web page, and it said that if the option to regulate the brightness does not show up, then I should update the drivers of my on board graphics. So I went to device manager and updated it, then I restarted the PC. At first, nothing really changed, and the option for the brightness didn't show up. I thought it was because I had the monitor connected to the GPU instead of the on board graphics. I connected the monitor to the on board graphics but still, nothing. And here began the problems. I connected the monitor to the GPU again but it displayed nothing. I restarted the PC again but I just got a message saying "No signal detected".
I had a similar issue 5 or 6 months ago, but I fixed it by just doing an update that java requested me. I don't know why, but it worked.
I managed to fix this again by just going to a restore point.
Everything is fixed now, but I'm afraid that updating the drivers could have some consequences. I don't know much about software or hardware, but I do know that drivers are very important and that I shouldn't be messing up with them.

Could someone of you guys tell me what could have been the problem and if I should be worried about the drivers update that I did?
That is what really concerns me. For some reason, updating the drivers and then using a restore point seems like a bad idea. But like I said, I don't know much about the topic so hope you guys can help me.

By the way, on the Porperties tab of the on board graphic device, says this:
"Driver service added (igfx)"
"Driver service added (cphs)"
"Driver service added (igfx CUIService2.0.0.0)"
"Device installed (igdlh64.inf)"
I don't know if this could be important or not.

 

[MarkW]

If you want to be sure they old video drivers *and* all of their pieces are gone, click on the link below, and download the Display Driver Uninstaller.

It will ask if it can go into Safe Mode to do its magic, and once there, you should select the big button at the top.

After it reboots and gets back to the desktop, reinstall the video drivers, and all should be well.

 

[Shaun o]

If you have a motherboard with an on board Intel graphics solution on it a IGPFX.

Then any Pci-e card such as the Nvidia GTX 960 graphics card you connect to the motherboard will, or should take priority over the on board graphics solution.

In some cases you have to enter the bios of the motherboard and change what graphics card is initialised first.
For a system with a Pci-e based graphics card Pci-e must be selected as the option in the bios and then the change must be saved before you exit your bios.

If the monitor is connected to the video output ports of the GTX 960 card.
The Brightness, and contrast levels, and the colour strength of each of the primary colours can be changed. Red, Green, Blue.

You can do this through the Nvidia Ge-force graphics software provided when the driver is installed on your system for the GTX 960 card.

If you left click on the small arrow next to the Internet connection monitor symbol, on windows desktop, windows bar.
a small window will open with the Nvidia controller software, left double click on the Nvidia icon in the small box.

A new app window will open, select advanced mode.
search through the menus of the app and you will see a tick box and slider bars to adjust the brightness levels, and contrast of windows desktop.