** Description changed:

+ [ Impact ]
+ 
  Ubuntu 26.04.1, GNOME Shell 50.1, Wayland, Wacom Intuos Pro M
  (056a:0357).
  
-   - Dragging files with the pen fails in all apps and between monitors. Mouse 
works.
-   - Same pen and machine in an Xfce X11 session: dragging works.
-   - Native Wayland Electron apps (e.g. Electron 41): the pen's side button 
acts as middle-click (pastes) even with button-action='right' and
-   secondary-button-action='right'. Running the app under XWayland 
(--ozone-platform=x11) makes it behave correctly.
+ Drag-and-drop with the pen only works within the same window.
+ Drag-and-drop across different windows with the pen fails.
+ 
+ [ Test Plan ]
+ 
+ 1. Log-in to Ubuntu Desktop
+ 2. Open the Files and Terminal apps
+ 3. Drag-and-drop a file into the terminal
+ 4. Verify that the drag-and-drop worked, writing the file path into the 
terminal input line
+ 
+ [ Where problems could occur ]
+ 
+ The patches affect the cursor focus tracking for stylus devices.
+ Where applicable, the new focus logic copies the same logic already 
implemented for the mouse pointer, which gives a certain degree of confidence.
+ Bug would manifest with stylus input not working correctly.
+ In the worst case, the desktop may crash and forcefully log-out the user.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: gnome-shell 50.1-0ubuntu1.3
  ProcVersionSignature: Ubuntu 7.0.0-38.38-generic 7.0.14
  Uname: Linux 7.0.0-38-generic x86_64
  ApportVersion: 2.34.1-0ubuntu0.1
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Oct  5 00:26:27 2026
  DisplayManager: gdm3
  InstallationDate: Installed on 2026-02-28 (218 days ago)
  InstallationMedia: Ubuntu 24.04.4 LTS "Noble Numbat" - Release amd64 
(20260210)
  RelatedPackageVersions: mutter-common 50.1-0ubuntu2.4
  SourcePackage: gnome-shell
  UpgradeStatus: Upgraded to resolute on 2026-10-02 (3 days ago)

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https://bugs.launchpad.net/bugs/2169504

Title:
  Wacom pen can't drag-and-drop in GNOME 50 Wayland; works in Xfce (X11)

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