How to recreate issue:- 1.Go to the power status icon on the rt hand end 2.Click it 3.Power page opens with a black flicker on the whole screen 4.now click on anywhere on the screen to go back 5.the flicker on the whole screen again occurs I have tried live usb of Ubuntu 20 earlier and have been a long time Linux mint user and have for a very short time used Deepin and i have never seen this flicker. Please find the attached video showing the flicker or black screen flicker occuring momentarily....