Kanasan
9 discussion posts
Hi,
I'm using a multimonitor setup (1 landscape and 1 portrait) and the taskbar from my secondary montiror (the portrait one) flashes for a second near the top of the screen on my primary if I do a specific thing. I usually have 2 apps open on my secondary monitor, the screen is essentially halved between them. When I pull the cursor over them, and the cursor changes to the 'change the size of this window arrow' that's when the taskbar flashes on the primary monitor. I recorded a video of the thing, I'll attach it here.
Any ideas what could be causing this? The flashes are quite distracting when moving the cursor between the applications.
Kanasan
9 discussion posts
Hi,
I've done the steps you requested. The timestamp of the event should be 20:39.
• Attachment [protected]: DisplayFusionDebugInfo.zip [83,099 bytes]
That's really strange, I can't say I've ever seen that before, and nothing weird is showing up in the log.
I wonder if it's a mix of Windows/.NET Framework/graphics driver causing it, can you make sure those are up to date and see if the issue persists?
Kanasan
9 discussion posts
I'm on Win11 24H2, no updates available in Windows update. For .NET, AFAIK those are also installed from Windows update.
I'm using the latest Nvidia drivers currently on an RTX 5080, the issue was also present on an RTX 3070 with older drivers and also an AMD 9070 XT with the latest AMD drivers.
If you use DisplayFusion to add a vertical split on that portrait monitor, and then align your windows within the splits, does the same thing happen?
Kanasan
9 discussion posts
I tried to adding a 50-50 split on the portrait, but the issue is still the same.
I just tried this on my main display and it happens there too. I'm attaching a video of it. It seems to me that when that "adjustment bar" appears that lets me adjust the window ratios, that's when the task bar clips over from the secondary monitor.
I'm guessing you are not able to reproduce it?
• Attachment [protected]: IMG_2910.MOV [7,992,756 bytes]
Yeah no luck reproducing it here unfortunately, do you have any other 3rd party apps that affect the taskbar?
Kanasan
9 discussion posts
I don't use anything else like that, only DF. I also quit most of the applications that were running in the background for my last test so I don't know what could cause it.
If you turn auto-hide on for that taskbar, does that change anything?
Kanasan
9 discussion posts
Yes it does. If I turn on auto-hide on the DF taskbar the flashing does not happen when the taskbar is not on screen. It seems to only occur if the taskbar is visible, I can still cause the flashing to happen if I quickly move my cursor between the taskbar (to make it visible) and the 'critical separator bar'.
Could you send me a backup of your settings? You can grab them via the DisplayFusion Settings > Options > Export Settings
Kanasan
9 discussion posts
Sure, I've attached it.
Also, I recently did a clean Win 11 install with exporting my settings and importing them after. The issue is still there. Latest Win 11 with updates installed, latest NVIDIA drivers.
• Attachment [protected]: DisplayFusion Backup (2025-06-21 @ 14-41, 11.1.1.0, BEAST, SettingsWindow).reg [225,312 bytes]
Kanasan
9 discussion posts
Here it is.
• Attachment [protected]: DisplayFusionDebugInfo.zip [142,526 bytes]
