Chosen Solution

I have my monitor for 2 years now, and it can display 1080p resolution. But after recently, multiple brownouts happened in my area in the same day. After the last brownout, the monitor only shows no signal after the bios logo. Since I can still access, and display the bios, I boot up the computer to safe mode, and it reaches to the desktop with display. But if I boot it up normally, it shows no signal after the bios logo. Since it has display on safe mode, because of its low resolution, I thought of booting it up the computer to low resolution mode, and it worked. But if I change the display to 1920x1080, the monitor will only show no signal. I borrowed my friend’s monitor, and it has no problem booting up (resolution set to 1920x1080). Currently it can only display 1024x768, higher than that, and it will show no signal. Is my graphics card the fault here? or the monitor? And if it’s the monitor, how can I fix it? Pc details: -Nvidia geforce gtx 1660 Ti -AOC 20 inch monitor (has a HDMI to VGA adapter) -amd ryzen 5 2600 processor -16gb ddr4 ram

Hi, Since you’re stating that when borrowing another monitor, it works just fine, but with your monitor it’s limited to 1024x768; It’s safe to assume your GPU (graphics card) is just fine. The monitor is at fault. Is it a high-end gaming monitor, or is it a cheaper option monitor?If it’s a high-end one, then taking it to a repair shop for further diagnosis could be an option.There’s most likely board level work that needs to be done on this one. If it’s a cheaper option (here in Norway the cheaper options are so plentiful that it’s not worth getting them repaired professionally, unless you’re doing it yourself), then the quickest and easiest solution is to replace it, and fex. use the damaged one as something to learn on. (How to open and take apart, poke around with a DMM (digital multimeter), etc.

You don’t state what brand and model the monitor is. That information is always very helpful on IFIXIT. Do you know how to use a soldering iron? Most likely a component on the power board. The brown-outs put a strain on the power circuit and can cause something to over heat. Look for burn marks or capacitor bulging at the top. You never know until you look. The repair could be very simple and cheap. Photos of the circuit boards would also help, if you get that far. Adding images to an existing question