When I bought my computer a year ago, I somehow managed to change some setting(s) to allow me to use both graphics cards at the same time. Recently the dedicated one flamed out, so I took both my computer and the graphics card to a repair shop to have the dedicated card fixed. When I got it back, that setting had somehow been reset -- I don't know what he did, but whatever setting I enabled a year ago is now disabled and I've spent hours to no avail trying to figure out how to re-enable it. Currently I'm only able to get signals from the ports on the dedicated card -- nothing hooked up to the onboard card is getting a signal anymore.
I have read a large number of similar questions, and they mention to find display settings in the BIOS. I'm using Asus's UEFI BIOS, so the layout, sorting, etc varies drastically. I haven't been able to find any sort of video settings in Advanced Mode at all.
On the OS's side, it looks like everything is fine. I used a screenshotting program and slid the canvas onto the second monitor (hooked up to onboard), and it captured part of its desktop (even though the monitor is black with no signal - orange power button). In this same screenshot, I also included the Device Manager and Screen Resolution:
Here's a screenshot of DxDiag for both of the displays:
It's also worth noting that the (VGA) second monitor wasn't showing up in Screen Resolution at first. I clicked Detect, Windows told me it found a VGA but there was a problem with it or something, and I forced it to connect anyway. I haven't been able to remove the monitor from Screen Resolution to repeat that to find the exact message I got though.
What can I enable in the UEFI BIOS or on my Windows 7 (64-bit) OS to restore functionality to the onboard card? Please let me know if you need any information that I may have left out -- I'll reply back with it as soon as possible.
Edit: On second thought, the OS might not be detecting the VGA monitor as well as I thought it was. The second screen in the screenshot is way smaller than what it was when I had it connected previously, and the resolution options in Screen Resolution for the VGA monitor are unconstrained:
Pause/Break
key on your keyboard when your computer boots to the BIOS screen to pause it from loading all the way so you can get that info if it flashes too quick ..