monitor is blinking and screen goes black

I got a weird issue with my monitor a few days ago. I turned on my computer, and my monitor wouldnt show anything. If i take out the graphics card out and insert it again, the monitor begins to blink and you can see the desktop for less than a second before it goes off again, and it just continues like that. I have tested it with various graphics cards, and the problem persist. Sometimes after rebooting my computer 7-8 times, my monitor will start working again. I have tried plugging in both a dvi-d and a hdmi cable, but the problem is the same.

Solved, it was the power adapter for my montior causing problems. ✔

Hi Cerawy.

Have you check Windows Update history. You are looking for what got install two days ago when problem started. If you can readily identify then you could back it out.

Some MB don't like having hardware swapped without resetting BIOS. If you do this, reset your BIOS, know your settings so you can restore.

Next track, does your machine display the same behaviour in Safe Mode. (Minimal apps, basic graphics driver.) The way I would start the process off of entering Safe Mode, hold shift key down, click restart. Two failed attempts to boot will also summons the advance startup options.

Boot to Advanced Startup Options in Windows 10

If screen is fine, although poor resolution, then I believe you have confirmed hardware okay. The next question, is it the graphics driver or an application. Since it does it with Graphics card and onboard graphics I leaning towards app issue if the screen is okay in safe mode.

If display flickers in Safe Mode I might be inclined to remove CMOS battery, disconnect and reconnect all connections, especially power cables at both ends if it is one of those "use what you need" models. Any chance you have spare power supply if only to test as you need to isolate cause.

You could uninstall the graphics driver and software and then re-install a known working version.

On reboot if screen continues to flash, with older working driver, you may have an application issue. In that case you could try a clean boot to see if that resolves issue. If screen does not flicker on clean boot then you got an app / program issue. The tutorial walks you through the identification process.

Perform a Clean Boot in Windows 10 to Troubleshoot Software Conflicts

One other idea, use system restore to go back in time to a working version.

As with all problem diagnostics, Windows can be cranky. One member last week did a clean boot and wound up restoring his entire system from an Image. Should not have happen however it did.

Have your data backed up, boot media available and it is always sound practice to have an Image created with a tool like Macrium Reflect.

Backup and Restore with Macrium Reflect


Ken

Okay, good to know. Please disable hibernation which in turn will kill Windows Fast Startup. This is for a test.

To Command Prompt (Admin) or Power Shell (Admin) enter the following.

powercfg -h off

to reverse change the word off to on in the command.

Power down your device. Power on, it should be fine. You can do the longer test, the two day version, and see if issue remains solved.

Ken

Possible radio / electrical interference.

Can you locate the wireless card further away from video? Also watch wiring / antennas both internally and externally.


Ken