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When I try to start settings shows this black box on top-left corner. Also, from right button on settings on the launcher, on all windows I see it is loaded, but window does not appear.

enter image description here

graham
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John Boro
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  • I issued "ls /sys/class/drm" ... i get :

    card0 card0-HDMI-A-1 card0-VGA-1 card1-VGA-2 renderD129 version card0-DP-1 card0-LVDS-1 card1 renderD128 ttm

     – John Boro Aug 05 '21 at 12:07
  • Please add new information to your Question above, not to comments. Comments are intended to help you improve your question; to make it answerable. Comments are not intended for conversation. – user535733 Aug 05 '21 at 12:19

2 Answers2

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This is a feature which allows you to identify which monitor you are modifying the configuration for when you open Display Settings. It corresponds with the miniature monitor layout diagram shown in the Settings application in your screenshot.

galexite
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I'm sorry. I had a second workplace, where the settings window was; it was no problem at all...

John Boro
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