Screen Flickering on Dual Monitor Setup

I'm trying some of these solutions and one of them said something about the Win+P menu, so I tried selecting 2nd monitor only. This seems to solve the issue. I swapped back to extend and the issue has gone away. I'm still a bit concerned it will come back, as the day before I posted this question, the screen flickering went away after messing with some settings on the graphics card software (AMD Radeon Software). If the issue does come back I will try other solutions as well.

Hi Grape. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.

1. Try these fixes for screen flickering in Dual Monitor setup in Windows 11 or 10 (fixes would be the same):

https://www.windowsdigitals.com/second-monitor-...

https://community.spiceworks.com/topic/2081624-...

https://www.nvidia.com/en-us/geforce/forums/gam...

https://support.microsoft.com/en-us/windows/tro...

https://www.hp.com/us-en/shop/tech-takes/how-to...

https://www.reddit.com/r/AMDHelp/comments/ioaaf...

https://www.reddit.com/r/pcgaming/comments/6w1e...

https://www.youtube.com/watch?v=CF2pmqfHXZ8

2. The Display driver is so important here that merely updating it is sometimes not enough. So let's try everything possible to get it working correctly:

First make sure you have updated the Display driver from the PC or Display adapter maker's Support Downloads web page for your exact model number, HP Serial Number or Dell Service Tag - from the sticker on the PC.

While there check also for newer chipset, BIOS/UEFI firmware (very important), network, sound, USB3 and other drivers, comparing to the ones presently installed in Device Manager reached by right clicking the Start Menu.

Remove the old driver using DDU https://www.wagnardsoft.com/content/ddu-guide-t... if necessary installing in Safe Mode with Networking (so you have internet), or Safe Mode, accessed by one of these methods: https://winaero.com/how-to-boot-windows-11-in-s...

If this doesn't give you the latest or ideal driver for what you need, compare it to the driver offered by the Intel driver update Utility here: https://www.intel.com/content/www/us/en/support...

or the Nvidia GeForce scanner here: http://www.nvidia.com/Download/Scan.aspx?lang=e...

or the AMD autodect utility here: http://support.amd.com/us/gpudownload/windows/P...

For Display issues one fix that is working is to Roll back or Uninstall the Driver on the Display Device > Driver tab, restart PC to reinstall driver. You can also try older drivers in Device Manager > Display device > Driver tab > Update Driver > Browse > Let Me Pick.

Then you will know you've tried everything in addition to Windows Update drivers.

Adjust the screen resolution until it fits and looks best at Settings > System > Display.

Feel free to ask back any questions. If you'll report back results for each step, including in each link, it can help determine what else we need to try. I will stick with you until it is fixed.

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Be sure to try the Display driver steps to find the driver which works best to resolve the problem if it returns. Hopefully not, but one of the steps I gave above will usually fix it, so bookmark the thread in case you need to refer back to it.

Let me know if I can help further. I'll stay subscribed to this thread in case you need anything else, until the system locks it in a few months.

Also if any particular post provided the solution, please mark it as Answer or Helpful to help others who find this thread.