Dock not showing on external monitor

This is also happening to me.

Macbook Air M3

macOS Sequoia 15.0

When I hover to the bottom of my monitor, the dock will not appear on the desktop of my external monitor.

But I notice that will happen only when the monitor is arranged above my MacBook on the Displays > Arrange menu.

When it is arranged beside (either to the left side or right side) of my MacBook, then the dock will appear as usual.

If the monitors were placed so (for example) they had a partial seam you could bring up the dock by mousing-over the section without the seam. This is a change of behaviour in Sequoia which means that if any part of a seam is on that edge, the dock will not appear.

I updated my Sonoma to the latest version just a few days ago, and it was still working perfectly there.

So this is a new regression introduced with Sequoia 15.0.

The problem lies in the arrangement of the displays.

If the displays are arranged horzontally, side by side, both internal and external displays will show a Dock at the bottom of the screen. But if the displays are arranged vertically, on top of each other, then the upper display will no longer show a Dock.

I have no idea why Apple would intetionally introduce such a productivity killer, so I can only assume it's a regression they plan on fixing. If they don't fix it, I'll wipe my machine and downgrade to Sonoma again. This is not fit for productive work.

Fixed with update on macOS 15.1!!! Now it works like before! Very happy ;-)

did you tried to go down where the dock is shown with mouse???

If not try, i was having thi issues on MacOS soonoma too and when i did this it showed

there is no "seam" between two displays. Please use proper wording while describing the issue, you've confused a lot of folks with your "dock positioned in the seam" =)

The situation is that before Sequoia it was possible to have dock show on either display by hovering mouse over the bottom edge (if dock is configured to be at the bottom, and also worked even with dock auto-hide option enabled). Since Sequoia you cannot see the dock on secondary display no matter what you do.

Pre-Sequoia I could activate the dock in my external monitors as shown. Post sequoia, I cannot. I need to have the monitors arranged with one directly to the left and one directly to the right for the docks to be activated. Any arrangement above the built in display removes that functionality apparently. I can get by but it is a pain.

hashtagrob wrote:

(in response to Barney-15E)

This is a straight up lie.

You can search the archives. It has always been not possible to set the Dock to a middle position.

If you have the displays set with one above the other, when you set the Dock to Bottom, it will go to the bottom-most display. If you set them left or right and set the Dock to Left or Right, the Dock will go the far left or far right of the two displays.

With displays set side-to-side, setting the Dock to Bottom will allow you to move the Dock between the displays.

I've been using Sonoma until just a few minutes ago, and I have ALWAYS had my displays arranged vertically, external display above the internal display, because that's how they are set up physically.

Until just a few minutes ago, when the Sequoia installation finished, I have ALWAYS had a Dock at the "seam" between the two screens, i.e. at the bottom of the external screen, above the internal screen.

As I stated, if you were able to Move the Dock between the displays after setting it up, it appears that is no longer possible.

I remember how it annoyed me that I always had to move the mouse to one of the corners on the external display to get the Dock, and that the Dock would often vanish again while I was hovering over it to pick an app, because my mouse moved too far down and onto the lower internal screen.

That's why it violates Apple's user design guidelines. You can overshoot your target easily. They may have removed the capability or the engineers failed to implement it on the rewrite.

Wallabebe wrote:

If the monitors were placed so (for example) they had a partial seam you could bring up the dock by mousing-over the section without the seam. This is a change of behaviour in Sequoia which means that if any part of a seam is on that edge, the dock will not appear.

I got that, as I stated earlier. I have never had two monitors with one smaller than the other, so I have never had any "partial seam." And, from what I have read, Left/Right side apparently never functioned that way which is where I keep my Dock. Why waste vertical space with something I rarely need.

Someone suggested here that there are essentially multiple teams and all of the software gets rewritten each year for the new OS. That now makes a lot of sense because things that get fixed a couple versions ago end up broken again, eventually.

Thanks, you've perfectly described the issue. Plus, i have two external monitors, one in office and another at home. Both of them fall into this issue. And even one of them are studio display, so I don't think it is a software issue among 3rd party hardwares, it is simply a Macos15 bug.....

Hope apple can resolve this asap

This is the issue.

Used to work up until (including) Sonoma.

Doesn't work anymore in Sequoia.

Regression.

Simple.

Doesn't matter to me if you believe it or not.

same problem with my M1 MacBook Pro and an external monitor.

It only works if the internal and external monitors are arranged directly in a corner, which of course makes it very difficult to move the cursor to the other screen.

What is this talk about "seams?" This isn't a shirt we're talking about. The simple fact is that prior to Sequoia, there was a dock in whichever display the cursor was in—that's two docks for persons using two displays. It wasn't straddling a "seam," but for many, was at the bottom of the active display. Now, under Sequoia, the dock that used to be on the second display is no longer there. Gone. Disappeared, Missing. This bug is as simple as that.

I can confirm this issue - dock is only showing on the main display, external not showing at all where before I could trigger it to show by going down to the edge of display with my mouse. Everyone having this issue please report to apple via feedback.