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Getting an error that seemed to have come out of no where. Error: Failed to call SetDisplayConfig. [HR: 31]

7 discussion posts
As far as I am aware there has not been any updates. Earlier today I had no issues, but this evening after turning on my computer I cannot switch to any of my saved my monitor configuration profiles.

I am getting the following error.

An error has occurred while applying your new Monitor configuration.
Please check your settings and try again.
Error: Failed to call SetDisplayConfig. [HR: 31]
Feb 27, 2021 (modified Feb 27, 2021)  • #1
7 discussion posts
I discovered the cause and was able to fix it.
Having checked the log I noticed the following error.


I had a light bulb moment. I installed a new cable the day this issue started

My GPU has 4 display ports. I installed the new cable into a different port not thinking much of it or that it would affect Display Fusion.

Apparently it does. Because the moment I switched my display port configeration to what I had initially appears to have resolved the issue.

This fix may not work for everyone who gets the error, but worth a shot.
Feb 27, 2021 (modified Feb 27, 2021)  • #2
Owen Muhlethaler (BFS)'s profile on
Hi Matt,

Glad to hear you got it working, and thanks for posting your solution!
Mar 2, 2021  • #3
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