To me, this looks like faulty hardware - e.g. a bad HDMI/Displayport cable/connector. Try a different cable or connection on the PC and display including switching between HDMI and Displayport, if you can. I've also seen weird stuff like this with an insufficient or failing PSU.
If the hardware stuff doesn't fix it for you, attach a DXDIAG report, so we can get a better sense of what we're dealing with.
Hi, it's not a hardware problem, I tested it. But here is the dxdiag report.
@ApolloMyArcher wrote:
Hi, it's not a hardware problem, I tested it. But here is the dxdiag report.
You have two monitors connected, so you're saying you've tried different cables and connections on both monitors and your RTX 3060? You might consider sticking with one monitor while you are troubleshooting.
If you look at the Diagnostics section of the report, you will see that multiple programs are having issues. Some of the issues suggest you have a memory issue, so make sure your memory is not faulty and that you have the speed in BIOS set to a speed your CPU supports (up to 4800 MT/s for DDR5 or up to 3200 MT/s for DDR4).
Obviously, make sure your BIOS is up to date.
Work thru the issues for each of the items mentioned in the Diagnostics section.
