at this time I've re-opened the Control.Centre.Displays option (top display), and altered the relative position of each other..
Please NOTICE the SHADOW/TRAILS of the movement I made of the 'green' or originally 'right' monitor which was dragged to be below the left one. Also NOTICE all trails on the lower-display are now gone; so has all FLASHING/STROBING on that display (it's now static). It's now 100% usable & readable. The trails being left on PS: I wonder if this issue is nouveau related, and NOT a Ubuntu-MATE issue; but again whilst I'm convinced I've had this issue before, I didn't find bug reports about it. From this point on the system experience was GREAT (making it both easier for me to type in the problem, but now I need to describe a condition I saw in the past - no longer occurring) ** Attachment added: "Screenshot at 2021-09-23 02-50-05.png" https://bugs.launchpad.net/ubuntu/+source/mate-control-center/+bug/1944661/+attachment/5527169/+files/Screenshot%20at%202021-09-23%2002-50-05.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1944661 Title: changing screen positions (mate-control-center.displays) caused one display to become unreadable/unusable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mate-control-center/+bug/1944661/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
