Issue moving windows between external displays with mouse

[pete-may]

Hi, I'm having problems dragging windows between two displays with my mouse (from mission control). When I release the window on the new display it snaps back to the original screen. I have to try this 3-4 times before it finally sticks. Any suggestions?

Info

• Running latest yabai (3.3.6)
• Running Big Sur OSX
• Operate in stack mode most of time
• Do not have the scripting additions (never needed it)

[Vermoot]

Same issue here, on Catalina, bsp mode everywhere and I do have scripting addidions installed.

[JonathanHuot]

I have the same issue. I found it less prone to errors if we wait a couple of seconds before releasing the mouse button. It seems that when we move a window without dropping it, a preview is done and it might conflict with the actual action when we release the mouse button before the preview is fully displayed.

[koekeishiya]

I don't think this is something that can be fixed; does this happen if you do not use yabai?

There are already checks in place that are supposed to make sure that we do not react to mouse-actions while mission control is active, e.g: https://github.com/koekeishiya/yabai/blob/master/src/event.c#L635

I did manage to reproduce this, however it was not easy when using a touchpad.

1. open mission-control
2. drag a window from one display to another
3. release the mouse and somehow almost instantaneously exit mission-control
4. window snaps back in rare cases. in other cases mission-control was exited but the visual transformation applied while mission-control is active did not actually revert (macOS bug).

For me the issue did no longer occur if I simply wait like half a second after releasing the mouse-button on the target display, before exiting mission-control. If this to slow for you, I would suggest just using keyboard shortcuts to move windows between displays.

[Vermoot]

I just gave it a try: This still happens to me (on Big Sur), without having to exit Mission Control quickly.

Stopped yabai, gave it a try: it no longer happens.

[koekeishiya]

Did some more digging and turns it was related to some other feature that was meant to help the mission-control integration work properly. This issue has been resolved on the-future branch.

[braham-snyder]

I think I have a similar, longstanding issue — still present on yabai-v4.0.1. One repro:

1. Open three windows on a Desktop
2. Press mission control
3. Drag two of the windows to an unselected/hidden Desktop on a different monitor
4. Press mission control again

At this point, one of the windows erroneously returns to the first Desktop.

[koekeishiya]

@braham-snyder That issue is fixed on master (at least I am unable to reproduce it using the above steps).

Hm I am able to reproduce now, but it is not consistent.

[koekeishiya]

Fixed on master.