Created attachment 106812 [details] Several compressed images showing the issues reported This is my first bug report ever, please tell me what I did wrong, or if I should be positing to the Fedora bugzilla. KDE Framework: 5.36.0 Kernel: 4.11.11-300.fc26.x86_64 Graphics Driver: nouveau X11 This is happening on a brand new install of Fedora 26 KDE, before and after updating from the official repository. There is some kind of issue with erasing parts of the UI where letters are not fully deleted, buttons are not fully depressed, and menus are not unhighlighted. For now I am using kwrite because the firefox text box is unusable, I can't read what I wrote for at least several seconds. Kwrite does not have the text issue but has the same menu issues. Attached is a compressed folder of several screenshots demonstrating the issue, please notify me if that is not acceptable and how I may upload several images to one bug report.
These are bugs in the video/OpenGL drivers. Please ask in a forum of your distribution how to switch to the official NVIDIA drivers. They come with their own share of issues, though.