Yesterday dnfdragora upgraded several items. I saw the list showing a lot of things concerning Cinnamon.
Before shutting down the computer I let dnfdragora update all of those, then I went to bed.
This morning, turning on is ok:
But after entering password:
Clicking mouse on the monitor, the desktop flickers:
I unplugged the external monitor, the notebook monitor is ok:
I plugged external monitor again, it’s ok.
I tried shutting down and turning on for many times.
I had to unplug and plug in every time.
Help me please