https://www.displayfusion.com/Discussions/RSS/?TopicID=88d74caf-e37e-4509-aabf-90e939a23092 DisplayFusion RSS: Win10 specific attempts to apply mirroring 3 displays causes DF to stop responding Wed, 15 Apr 2026 22:46:10 GMT en hourly 1 https://www.displayfusion.com/Discussions/RSS/?TopicID=88d74caf-e37e-4509-aabf-90e939a23092 https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#10 Tue, 06 Sep 2022 17:02:49 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#10 DisplayFusion DisplayFusion grabs the monitor ID's from the Windows API, so they should be the same. The beta adjusts the way the monitor ID's are saved with the profiles. ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#9 Fri, 02 Sep 2022 17:27:23 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#9 DisplayFusion DisplayFusion sees my display IDs the same as Windows does. How would it be different with the beta? I'm trying to decide if it will be worth it to grab the beta. ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#8 Fri, 02 Sep 2022 15:19:42 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#8 DisplayFusion Yep you can just run the installer overtop of your current install. You could also open the DisplayFusion Settings > Options > enable "Check for new beta versions", and then click "Check for updates now".

Thanks! ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#7 Thu, 01 Sep 2022 22:23:35 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#7 DisplayFusion I'm wondering if the log was lost, when DF crashed. I can try again, if you want. Might even be easier, if you tell me where the logs are physically stored (so I can grab them before they're overwritten on app restart). This is the Steam version. The errors you saw were possibly because of the funky display configuration it left behind on failure.

In answer to your question, Yes. Here's how they are configured...

4K Theater Display (always set as primary, usually at 1080p@60Htz, and always identifies as 2)
1080p PC monitor (Usually set as extended to the left, rarely mirrors with 2, always at native resolution, and always identifies as 1)
1080p HDTV (Handicapped display, always mirrors either 1, or 2, and always identifies as 3)

I'll give the beta a try, and see if it changes anything. Anything special I have to do to update to it, or just run the installer? ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#6 Thu, 01 Sep 2022 15:37:28 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#6 DisplayFusion Thanks for sending that over, it looks like the log only goes back to 5:43:40, but it just contains some general monitor config errors.

Our latest beta has some updated changes to the way DisplayFusion handles the monitor ID's, so it might be worth testing out. I'll attach the link here: https://www.displayfusion.com/Download/Beta/.

Also, was the primary monitor the same monitor when you tried to load each profile?

Thanks! ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#5 Wed, 31 Aug 2022 21:50:35 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#5 DisplayFusion 5:41p (almost 5:42) - load from single 1080p@60Htz display to full 3 display mirror was a complete success (Profile loaded called "Full Mirror" 3x1080p@60Hz)
5:42p - Load from "Streaming" (one primary, and another extended, both at 1080p@60Htz) to full 3 display mirror was a total fail, instead applying some weird display setting not included in my display configurations. (Primary upscaled 1080p to 4k, but otherwise didn't change the profile)
Requested logs are attached. With there being a success from single display mode, I'm thinking there might be a solution. (That's something the Windows Settings app doesn't do)

Edit: All times are Eastern US ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#4 Wed, 31 Aug 2022 14:57:42 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#4 DisplayFusion Ah thanks for clarifying. DisplayFusion uses the Windows API to set the monitor configuration, so if it doesn't work there it won't work in DisplayFusion either.

I don't think there's much we can do here, but a log definitely wouldn't hurt.

Thanks! ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#3 Tue, 30 Aug 2022 16:19:51 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#3 DisplayFusion Thanks. I made a mistake in what I told you. I can apply the settings from nvidia control panel, but not from the Windows settings app.

Does this mean that I have to use the nvidia control panel, if I want to mirror all 3 displays? If you still want the logs, after learning this, I'll be glad to provide them. ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#2 Mon, 29 Aug 2022 17:32:10 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092#2 DisplayFusion Usually this happens if your system is not able to clone those monitors through the Windows API. That's strange it works through the Windows Display Settings.

Could you send me over a debug log? Here are the steps:

• On the DisplayFusion Settings > Troubleshooting tab, change the Logging drop-down to "L1: Log Minimal" and click Apply
• Reproduce the issue and note the time so we'll know where to check in the log file
• Click the "Export Info to File" button on the Settings > Troubleshooting tab
• Reply with the file attached
• Disable debug logging after sending the log

Thanks! ]]> https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092 Sun, 28 Aug 2022 03:57:06 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/win10-specific-attempts-to-apply-mirroring-3-displays-causes-df-to-stop-responding/?ID=88d74caf-e37e-4509-aabf-90e939a23092 DisplayFusion DF installed via Steam
Nvidia 2080 SUPER
1080p Smart TV
1080p Dell monitor
4k smart TV.

Attempting to apply a 3-way mirror of 1080p@60, when there are 2 already in this configuration, and the 3rd is just extended in 1080p@60 causes DF to completely stop responding. My only option is to end it from task manager and restart it.

The only way to apply is from Windows settings, or the nvidia control panel.
Need more info? Just let me know. ]]>