DisplayFusion RSS: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/RSS/?TopicID=b33dbd52-a576-4852-8da1-534b519df063 DisplayFusion RSS: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally Thu, 09 Apr 2026 11:11:02 GMT en hourly 1 https://www.displayfusion.com/Discussions/RSS/?TopicID=b33dbd52-a576-4852-8da1-534b519df063 RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#22 Thu, 01 Dec 2022 19:23:49 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#22 DisplayFusion Hello,

We've made some changes to our monitor configuration code that should fix this up in our latest beta, as described here: https://www.displayfusion.com/Discussions/View/monitor-configuration-backend-completely-revamped-in-displayfusion-100-beta-18/?ID=b17dacd1-0611-48c1-a29c-3a3e5046812a

Please let me know if you run into any issues after updating.

Thanks! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#21 Fri, 12 Feb 2021 18:56:44 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#21 DisplayFusion Copy, thanks. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#20 Fri, 12 Feb 2021 18:33:12 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#20 DisplayFusion Hi Tim,

Interesting, I've bumped this up for us to look into for v10. We'll take a look at the changes we made between v9.7.0 and v9.7.1 and see if we can find the root cause.

For now you can stay on 9.7.0 if it's working good for you.

Thanks! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#19 Tue, 09 Feb 2021 12:52:31 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#19 DisplayFusion It certainly looks like downgrading has solved the issue. Thank you. I guess I'll stick on that version until you tell me it's safe to upgrade? ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#18 Thu, 14 Jan 2021 15:41:14 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#18 DisplayFusion Hi Tim,

Not a problem. These error 31 issues are tough to pin down, as they are just a general hardware error, and don't really tell us anything about the issue itself.

I'm going to attach a link at the bottom of this thread for you to roll back to 9.7.0. Can you let me know if the issue persists?

Thanks!

https://www.binaryfortress.com/Data/Download/?OldVersion=1&DownloadID=34204533-0a63-442a-84af-63025d8cabdd ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#17 Tue, 12 Jan 2021 19:44:27 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#17 DisplayFusion Not sure what version I was running back in November, sorry to say. I have it set to look for updates automatically so it should have been whatever was current. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#16 Tue, 12 Jan 2021 16:40:54 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#16 DisplayFusion Hi Tim,

Interesting, thanks for sending that over. Was the issue originally happening with 9.7.0?

Thanks! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#15 Mon, 11 Jan 2021 20:32:11 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#15 DisplayFusion Hi there, same issue, sorry to report. Log file is attached, happened at approximately 3:20pm ET. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#14 Fri, 08 Jan 2021 18:37:23 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#14 DisplayFusion Hi Tim,

Can you try deleting and recreating your monitor profiles and see if the issue persists?

Thanks! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#13 Fri, 08 Jan 2021 17:53:36 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#13 DisplayFusion Yes, happened just yesterday. Was working fine for a number of weeks before, though. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#12 Fri, 08 Jan 2021 17:33:00 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#12 DisplayFusion Hi Tim,

Has it only started happening since updating to 9.7.1?

Thanks! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#11 Thu, 07 Jan 2021 23:55:28 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#11 DisplayFusion Any updates on this, perchance? Hadn't seen this in a little while but just this week it started happening again. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#10 Wed, 18 Nov 2020 16:43:25 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#10 DisplayFusion Thank you! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#9 Wed, 18 Nov 2020 16:35:42 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#9 DisplayFusion Hi Tim,

Thanks for sending those over, we're going to look into this further. I've noted down your contact information, and we'll be in touch either to collect more information, or to let you know when we have a fix.

Thanks! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#8 Wed, 18 Nov 2020 00:54:19 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#8 DisplayFusion Here you go. This happened around 7:45pm ET. I have four monitors and two configurations. One config disables the right three and enables the left one. The second configuration reverses that. This only ever happens when moving to the second configuration, and maybe 50% of the time. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#7 Tue, 17 Nov 2020 17:07:44 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#7 DisplayFusion Hi Tim,

If you could send over a copy of your system information, that would be great. The steps to enable logging can be found below:

  • 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

Also, if you happen to notice a trend of when this is happening, that would be great as well.

Thanks! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#6 Fri, 13 Nov 2020 20:46:17 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#6 DisplayFusion Circling back. I got the same error using the Beta 6 version. I attempted to open the log to see the details, but got this error:

The Debug Log file could not be found.
Make sure you have enabled Debug Logging first.


I don't see a place in the Troubleshooting window to enable logging, though. Where is that option? All the references I found in the forum indicated it should be on that section of the preferences but I don't see it.

I do have a copy of the full System Information if that's helpful. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#5 Wed, 11 Nov 2020 16:33:01 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#5 DisplayFusion Hello,

Interesting observation, thanks for the feedback! ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#4 Tue, 10 Nov 2020 22:31:13 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#4 DisplayFusion Been getting this a lot lately on 9.7.0. I just installed 9.7.1 beta 6 and it still failed with the same error when attempting to set profiles. Even a reboot wouldn't get it to work, always getting the [HR: 31] error.

I could manually change things like monitor enablement though, so I deleted and re-created both my 2 profiles. They worked reliably.

Then it occurred to me that both my profiles include a Dell monitor connected via USB-C. My laptop has two USB-C ports and I'm not rigorous about always plugging the cable into the same one, so I did an experiment and shifted the monitor back and forth between the USB-C ports.

If I connect the monitor to the same USB-C port as when I saved a given profile, the profile always works. If I connect the monitor to the other USB-C port then the Load Profile fails reliably, though it is of course the same physical monitor.

For now, it's easy for me to just pick a USB-C port and stick with it, but thought you should know. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#3 Tue, 10 Nov 2020 18:10:00 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#3 DisplayFusion Thanks, just installed. Will keep an eye on it. ]]> RE: Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#2 Tue, 10 Nov 2020 16:33:12 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063#2 DisplayFusion Hi Tim,

Can you try updating to our latest beta and see if the issue persists? Here's the link: https://www.displayfusion.com/Download/Beta/

Let me know how that goes! ]]> Failed to call SetDisplayConfig. [HR: 31] -- but only occasionally https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063 Fri, 06 Nov 2020 20:09:25 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/failed-to-call-setdisplayconfig-hr-31-but-only-occasionally/?ID=b33dbd52-a576-4852-8da1-534b519df063 DisplayFusion Hey there, have been getting this error intermittently when toggling displays:

An error has occurred while applying your new Monitor configuration.
Please check your settings and try again.
Error: Failed to call SetDisplayConfig. [HR: 31]
[System.Exception]

Weirdly, it only happens sometime, and I haven't been able to identify when. I read through a bunch of other people having this issue and none of them seemed the same, as this is only intermittent. I have four monitors, two profiles, one that disables 3 of them. The second profile re-enables those three and disables the first. It's always that profile that fails probably 30 percent of the time. But, once it fails I have to reboot the PC to get it to work.

I verified that all monitors are recognized by windows, tried turning them off and on again, all that works is a reboot.

Settings attached. Thanks for any guidance! ]]>