Dock not showing on external monitor

You did not understand the problem.

Here's how it has worked as far as I'm aware. If you claim you can get the Dock at the bottom of the upper display, maybe Apple will put it back in an update.

Someone claimed you have to have a gap in the seam where one is smaller than the other. If that is required, I would have never noticed.

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.

The Dock has never been able to be placed on a seam between displays.

I have no idea if moving the Dock violated this setting in the past. If you were able to put it on the seam in the middle of two displays by moving it, that was probably a bug.

Wallabebe wrote:

You could use the dock on the bottom of a screen that had a seam that didn't go across the entire monitor—for example, if the screens only half-overlap

we have lost you there, you are confused. Apple does not allow any "overlapped" displays, nor is there any "seams" between displays. Displays are positioned edge to edge either vertically or horizontally, edges always touching. There's edge of one display touching the edge of another - not overlapping, and no "seams".

We both have external monitors, and the dock is not showing on any of the external displays. Does anybody have a fix for this?

Apple will have a fix for this bug. Patience is required of all of us.

This is exactly what I'm experiencing. It did work. It now doesn't work. I'm pretty tired of the "oh, that never worked" responses. It certainly did work.

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

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.

No, I understood completely.

Placing the Dock at a seam is not possible and never has been.

From what you and others say, moving the Dock to the upper display (putting it on the seam) from the lower display did work.

That appears to no longer work.

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.

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.

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.

I'm a lot of things, but confused isn't one of them. My laptop was offset to the right of the monitor (which was above it). A mouse could pass between the two monitors only on the right of the bottom edge. On the left (which didn't line up with the laptop) you could move the mouse there and cause the dock to open.

Now, this may have been an error and not part of the design guidelines, but it certainly did work, and now it does not. I'm not new to this. I've had this setup since 2022. Like I said, I'm not confused.

No, Apple does not read these forums, which are for user discussions only. Somewhere you can find a link to report a problem to Apple. I’m sitting in the sun with an iPad on vacation and can’t really see the screen will enough to search for the link.