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Every time I plug the monitor in to a Dell Precision 7730 and set it to "extend to right" it works normally. But after a while, it goes dark, and to make it reappear I have to change the display settings (like changing the mode to "mirror displays", for example) and go back to how I was using it before.

It is really annoying, since sometimes it lasts less than a minute.

It is not a problem of the monitor: I tried other monitors and had the same problem. Moreover, this same monitor used to work with another laptop with Xubuntu, so it must be something about the computer.

Does anyone know what might be the problem?

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