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Windows Taskbar jumps under DisplayFusion Taskbars

2 discussion posts
I've had this issue for quite a while already and thought it occurred at random moments, but finally figured out how I'm able to replicate it.

I have 3 monitors and use a NVidia Surround setup and use the auto-splits.
The Windows 10 taskbar is on the center monitor with the side screens each having a DisplayFusion taskbar.

The strange behaviour is triggered when the windows taskbar gets focus, e.g. when I click on an empty part of it.
As long as my mouse cursor stays on the center monitor split all is fine, however when I move the cursor to either side monitor split, within a second the Windows 10 taskbar "follows" the cursor and moves to that side monitor and will position itself behind the DisplayFusion one.
This leaves a gap at the center monitor.
The taskbar will keep following my mouse cursor until the taskbar loses it's focus to a window or the desktop itself.

Opening the start menu by pressing the Windows-key will bring the Windows taskbar to the in front of the DisplayFusion one, so I can click on it again to give it focus and move my cursor to the center screen to move it back.

It doesn't matter if the taskbar is locked or unlocked, it will move regardless.
I've tried enabling and disabling various Multi-Taskbar related settings, but the only way to stop this behaviour seems to be disabling the Multi-Monitor Taskbar functionality.

Does anyone know what's going on and how I can stop this from happening?

Although it's easily "corrected" it happens quite frequent when working in Windows that it becomes quite the nuisance.

Here's a video showing the issue:
• Attachment [protected]: [40,061 bytes]
• Attachment [protected]: Windows-Taskbar-Hidden-1.png [631,576 bytes]
• Attachment [protected]: Windows-Taskbar-Hidden-2.png [57,428 bytes]
Aug 13, 2020  • #1
Keith Lammers (BFS)'s profile on
If you open the Windows Task Manager > Details tab, are there any processes listed called "nvsmartmaxapp"?
Aug 18, 2020  • #2
2 discussion posts
If you open the Windows Task Manager > Details tab, are there any processes listed called "nvsmartmaxapp"?

You're right, nvsmartmaxapp.exe and nvsmartmaxapp64.exe were running.

As nVidia released a driver update today I installed the update while performing a clean install and didn't have the issue.

After setting up the surround configuration again these processes popped up and re-introduced the issue.
But after confirming DF's prompt to disable the nVidia processes they disappeared again and the taskbar stays in place again.

So it seems that when I did the previous driver update (about a month and a half ago) I must have ignored DF's prompt and introduced the issue myself.

So I'm happy it is "solved" for me now, but I feel pretty silly for not realizing I was the one that messed up
• Attachment [protected]: 2020-08-18 18_28_42-Task Manager.png [18,505 bytes]
Aug 18, 2020  • #3
Keith Lammers (BFS)'s profile on
No worries at all, glad I could help track it down
Aug 18, 2020  • #4
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