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Multiple overlapping fancy zones when 'Show zones on all monitors while dragging a window' enabled

See original GitHub issue

Environment

Using two monitors, one widescreen monitor and one vertically oriented monitor. The widescreen monitor is using a custom fancy zone layout while the vertical monitor is using the “Rows” layout (see all monitor screenshot below).

Windows build number: Microsoft Windows [Version 10.0.18362.778]
PowerToys version: v0.16.1
PowerToy module for which you are reporting the bug (if applicable): Fancy Zones

Steps to reproduce

Enable ‘Show zones on all monitors while dragging a window’ option
Drag window with secondary mouse button or shift key pressed and ~3 overlapping fancy zones appear on primary monitor, causing a few second delay before any zones become droppable
Disable ‘Show zones on all monitors while dragging a window’ option
Only one zone appears per fancy zone (expected behavior)

Expected behavior

Fancy zone droppable areas will only appear once per zone

Actual behavior

Multiple overlapping fancy zones appear on screen and none are selectable for several seconds

Screenshots

Mulitple overlapping fanzy zones

FancyZonesBugAllScreen

Issue Analytics

State:
Created 3 years ago
Reactions:1
Comments:9 (2 by maintainers)

Top GitHub Comments

1reaction

benjymouscommented, Jul 14, 2020

I’ve found it’s also fixed by just toggling FancyZones off and on again.

I’m guessing the simplest fix would be to detect that the desktop/screen layout has changed, and just reset the module

1reaction

benjymouscommented, Jul 10, 2020

I had this happen again today - the fancy zones were under the start menu. Restarting PowerToys fixed it again.

It’s possibly related to the screen geometry changing when docking/undocking from external monitor - my Laptop always seems to get into a bit of a confused state each morning waking from hibernation, and bounces windows between montitors as it tries to decide which one is primary.

Edit:

Ok, now I have repro steps (for my machine, anyway)

Laptop with external monitor connected via USB-C dock.
External monitor is set to primary.
125% zoom on laptop, 100% zoom on monitor.
Fancy zones configured on laptop screen.
Task bar on left of screen on both displays
Unplug USB dock cable. Wait for everything to settle down
Plug dock back in again. Wait again.
Fancy zones on laptop screen are now duplicated, and in positions offset as if the taskbar was not on the left