Another report of the same issue: https://askubuntu.com/questions/983629 /terminal-window-stuck-with-the-corner-of-another-window-drawn-on-it
It's interesting that you have 4 buttons instead of 3 (and it's the same at that other report). Did you somehow add a 4th button? What and how exactly? Or does it only appear in gnome-terminal? What do those buttons do if you click on them? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-terminal in Ubuntu. https://bugs.launchpad.net/bugs/1724250 Title: gnome-terminal graphic artifact Status in gnome-terminal package in Ubuntu: Confirmed Bug description: Opening gnome-terminal in Ubuntu 17.10 shows the terminal window with a graphic artifact on the right of the title bar, where the window buttons to minimize, maximize and close are. The window buttons are working so this is just a visual glitch and does not otherwise affect gnome-terminal functionalities. It does not matter whether the gnome-terminal window is maximized or not, the graphic artifact is always present and does not disappear hovering on it with the mouse. Other applications do not appear to be affected, only gnome-terminal. I'm using NVIDIA Corporation GM204M [GeForce GTX 970M] with the NVIDIA binary driver 384.90. See attached screenshot. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-terminal 3.24.2-0ubuntu4 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Oct 17 15:37:42 2017 InstallationDate: Installed on 2017-10-01 (15 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926) SourcePackage: gnome-terminal UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-terminal/+bug/1724250/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp