2nd monitor not detected

  amd, monitor, windows

Since last night my second screen no longer displays. I have tried updating my rx580 graphics card, uninstalling the update, and reinstalling an old version but nothing seems to work. When I uninstall my Graphics Card, I have the same screen which duplicates but cannot extend the screens! And when I install the software from AMD, my second screen no longer appears. In any case, I cannot extend the screens. I tried to reset Windows but I have still the same problem.

I also tried in Ubuntu, still the same problem.

Do you have a solution?
tnx.

Thank you in advance!

Source: Windows Questions

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