** Changed in: gnome-shell (Ubuntu)
       Status: Incomplete => New

** Tags added: focus picking

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https://bugs.launchpad.net/bugs/2026194

Title:
  When clicking on some maximized or tiled windows, focus on roughly the
  lower quarter falls to the window behind

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  Initially I thought this was an issue with IntelliJ and filed a bug there:
  
https://youtrack.jetbrains.com/issue/IDEA-323780/Maximizing-the-the-window-sometimes-causes-clicks-on-a-lower-fraction-to-pass-through-to-the-window-behind

  But when I had the same issue with GIMP, I realized it's an Ubuntu or
  GNOME issue instead. I am assuming this is a gnome-shell problem.

  
  Every once in a while, when I maximize or tile (Win+Right) the IntelliJ 
window, a bottom fraction of the window (somewhere around a quarter) becomes 
impossible to interact with, with the mouse. Clicking in that lower area will 
give focus to the thing behind IntelliJ, and if it's a window, raise it to the 
foreground. if I restore the window so that it is not maximized, the entire 
window is interactive with the mouse once again.

  This also happened with GIMP.

  
  The attached "Screencast" is a recording. I had to crop it to hide personal 
information. The attached screenshot shows the state of my screen so you have 
context, with a bright green color used to replace personal information.

  For the first 10s of the recording, I simply moused over to show how
  the cursor changes around a quarter from the bottom of the screen.

  For the next 10s, I left click, then move, then left click, then move,
  until focus changes to Sublime, the window behind IntelliJ.

  For the remainder of the video I show that right-clicking and mousing
  over works fine on the top three quarters, until I reach the bottom
  again, and then the right click is sent to Sublime.

  
  Ubuntu 23.04
  gnome-shell version 44.2-0ubuntu1

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: gnome-shell 44.2-0ubuntu1
  ProcVersionSignature: Ubuntu 6.2.0-24.24-generic 6.2.12
  Uname: Linux 6.2.0-24-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.26.1-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Jul  5 12:05:46 2023
  DisplayManager: gdm3
  InstallationDate: Installed on 2022-09-19 (289 days ago)
  InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 
(20220809.1)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/usr/bin/zsh
   TERM=screen-256color
   XDG_RUNTIME_DIR=<set>
  RelatedPackageVersions: mutter-common 44.2-0ubuntu1
  SourcePackage: gnome-shell
  UpgradeStatus: No upgrade log present (probably fresh install)

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