Public bug reported: Package: gnome-shell-ubuntu-extensions 50.26.04.7ubuntu (tiling-assistant, reports v54) Ubuntu 26.04 (resolute), GNOME Shell 50.1, Wayland Hardware: ThinkPad X390 Yoga (built-in Wacom pen + touch digitizer), external USB mouse
Problem Dragging a window (e.g. a terminal) by its title bar with the mouse makes Tiling Assistant tile/maximize it as soon as the pointer is about halfway across the screen, far from any edge, so windows are almost impossible to move. Dragging by touch works. With the extension disabled (native GNOME edge tiling) mouse drags are normal. When the pen is placed on the screen, a second, motionless pointer appears at the top of the screen (the pen's own pointer) and edge snapping with the mouse stops working entirely (no preview, no tiling at the left/right edges). Cause The packaged moveHandler.js contains the drag-sprite heuristic from upstream "Handle window drag by touch input" (_lastSprite = sprite of any stage LEAVE event) but not the follow-up fix: 0351b533a9 "moveHandler: Workaround spurious LEAVE events from tablet tools" (Closes https://github.com/ubuntu/Tiling-Assistant/issues/453) Per that commit message, tablet tools fire spurious LEAVE events right after the mouse LEAVE when a drag starts from the mouse, so getDragCoords() reads the wrong sprite. Upstream v55 (2026-09-20) contains the fix. The update currently in resolute-proposed (50.26.04.8ubuntu) does not contain it either: its vendored moveHandler.js has none of SpriteRole / _seenPointerLeave / FLAG_GRAB_NOTIFY. I matched the symptoms to the code and to upstream issue #453; I did not instrument the shell to log the coordinates. Steps to reproduce 1. Ubuntu 26.04, Wayland, a device with a Wacom/tablet digitizer, Tiling Assistant enabled. 2. Drag any window by its title bar with a mouse toward the middle of the screen. Expected: tile preview only near a screen edge. Actual: tile preview/tiling starts mid-screen. Suggested fix: cherry-pick 0351b533a9 (or update to v55) in the next SRU. Workaround: gnome-extensions disable [email protected] ** Affects: gnome-shell-ubuntu-extensions (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2167849 Title: Tiling Assistant snaps window mid-screen when dragged with mouse (missing upstream fix 0351b533a9, tablet-tool LEAVE events) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-ubuntu-extensions/+bug/2167849/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
