Clocked up a determined display in Linux mint 18.3 how to fix it?

to a desktop computer with Linux mint 18.3 is connected two monitors, it worked fine. but today after turning on one of the monitors, which was the primary no longer determined by the system. the resolution was decreased to minimum and use is not particularly comfortable. What could be the reasons for this behavior and whether it is possible to fix it?
June 10th 19 at 15:35
2 answers
June 10th 19 at 15:37
Don't know if it helps...Also upgraded recently to 18.3 and faced with a similar
The thing drained HiDPI and Cinnamon 3.6. LM now has the ability to automatically scale the size of the Windows\fonts\icons under the resolution of the monitor. To solve adjust the resolution of each monitor by hand. If you do not help, here is a review article, then naguglit about tuning the X server.
June 10th 19 at 15:39
view in the direction of xrandr I've solved a lot of problems (another quick)
so if there mint something is broke until you fix it -- Pospolitaya it.

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