DisplayFusion RSS: DisplayFusion not working https://www.displayfusion.com/Discussions/RSS/?TopicID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d DisplayFusion RSS: DisplayFusion not working Wed, 23 Sep 2026 20:20:50 GMT en hourly 1 https://www.displayfusion.com/Discussions/RSS/?TopicID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#13 Thu, 03 Sep 2026 00:25:18 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#13 DisplayFusion Great!

Thanks for the update.
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I'm sorry for the delay, things are quite busy during the summer but we still have this on the list for testing next week. Thanks!
]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#12 Wed, 02 Sep 2026 19:28:45 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#12 DisplayFusion I'm sorry for the delay, things are quite busy during the summer but we still have this on the list for testing next week. Thanks! ]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#11 Tue, 18 Aug 2026 20:43:19 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#11 DisplayFusion Thanks for testing that and sending over the debug log. I'll pass it back over to our developers to review. ]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#10 Tue, 18 Aug 2026 18:00:15 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#10 DisplayFusion No change in behavior as the monitors will all go back into a straight line. The debug file is attached and should be small as it was a fresh install to try this. The time I tried to apply the new monitor layout was about 12:55. Also worth noting there is considerable lag when trying to drag the monitors into the new arrangement.

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Apologies, the follow-up got lost for this one. There's a new advanced setting in DisplayFusion called "Disable Old Monitor API Fallbacks." Could you do the following?

  • On the DisplayFusion Settings > Troubleshooting tab, change the Logging drop-down to "L1: Log Minimal" and then click "Clear Log"
  • Enable the "Disable Old Monitor API Fallbacks" advanced setting
  • Try to reproduce the failure to apply the monitor settings 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

Even if it succeeds with that setting enabled, if you could send us the debug log, that would be great.

Thanks!
]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#9 Mon, 17 Aug 2026 20:03:27 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#9 DisplayFusion Apologies, the follow-up got lost for this one. There's a new advanced setting in DisplayFusion called "Disable Old Monitor API Fallbacks." Could you do the following?

  • On the DisplayFusion Settings > Troubleshooting tab, change the Logging drop-down to "L1: Log Minimal" and then click "Clear Log"
  • Enable the "Disable Old Monitor API Fallbacks" advanced setting
  • Try to reproduce the failure to apply the monitor settings 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

Even if it succeeds with that setting enabled, if you could send us the debug log, that would be great.

Thanks! ]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#8 Fri, 14 Aug 2026 18:56:42 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#8 DisplayFusion Any updates on this? ]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#7 Mon, 06 Jul 2026 13:56:33 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#7 DisplayFusion We have a suspicion on what the issue may be. We're adding a new advanced setting for the next beta that we will get you to try and we'll let you know as soon as it's available.

Thanks! ]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#6 Sat, 04 Jul 2026 18:59:13 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#6 DisplayFusion I had some time to mess around with this more and the interesting thing is that I can't get the older versions to work either now. When I first purchased it, I didn't have any issues when first setting it up. Has the developer had time to look into this?
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Thanks for the extra info on that! I will pass this and the log over to our developers to take a look. Meantime, if you want to try rolling back to a previous version of DisplayFusion, the last bunch of versions are available here: https://www.displayfusion.com/OldVersion/
]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#5 Mon, 15 Jun 2026 20:10:10 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#5 DisplayFusion Thanks for the extra info on that! I will pass this and the log over to our developers to take a look. Meantime, if you want to try rolling back to a previous version of DisplayFusion, the last bunch of versions are available here: https://www.displayfusion.com/OldVersion/ ]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#4 Fri, 12 Jun 2026 19:42:32 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#4 DisplayFusion I did a displayID dump in command prompt and I attached it here. I see what you mean by duplicate hardware ids. For some reason Windows doesn't have that same detection issue. Hopefully this is beneficial to you.
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Hi Keith, I can't pinpoint it to a specific update as updates had been applied without using DisplayFusion for a few months.
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From the log, it looks like a few of the monitors have duplicate hardware IDs, so DisplayFusion is having trouble differentiating them when applying the settings. Did this start with a specific DisplayFusion update? If so, do you recall which version?
]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#3 Fri, 12 Jun 2026 14:43:02 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#3 DisplayFusion Hi Keith, I can't pinpoint it to a specific update as updates had been applied without using DisplayFusion for a few months.
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From the log, it looks like a few of the monitors have duplicate hardware IDs, so DisplayFusion is having trouble differentiating them when applying the settings. Did this start with a specific DisplayFusion update? If so, do you recall which version?
]]> RE: DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#2 Fri, 12 Jun 2026 14:35:57 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d#2 DisplayFusion From the log, it looks like a few of the monitors have duplicate hardware IDs, so DisplayFusion is having trouble differentiating them when applying the settings. Did this start with a specific DisplayFusion update? If so, do you recall which version? ]]> DisplayFusion not working https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d Wed, 03 Jun 2026 13:47:34 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/displayfusion-not-working/?ID=019e8dbd-4b65-7382-93c9-50d7c2b13f2d DisplayFusion I've recently developed an issue with DisplayFusion where it will not apply the profile. I have reinstalled DisplayFusion and currently have the most recent beta.

I can arrange the monitors in Windows display settings as well as in DisplayFusion. When I try and hit apply the white circle will spin for about a minute and then take the arranged monitors and put them all back in a straight row. During this process the monitor configuration window title bar will turn white and say not responding. This was logged at 8:42am

If I try and load a profile it acts like it wants to load but the monitors will stay in a straigh line instead of a 3x3 grid with the primary monitor below the 3x3 grid. During this process the monitor configuration window title bar will turn white and say not responding. This was logged at 8:36am. I have previously tried to delete the profile and create a new one but that didn't resolve the issue.

Windows display settings appears to work normally as I can arrange the monitors and the mouse will travel across all of the screens after hitting apply. At this point it doesn't appear to be a hardware issue.

I have attached the log files. ]]>