https://www.displayfusion.com/Discussions/RSS/?TopicID=0199cbac-aa8b-779d-96b7-55b4410c51e1 DisplayFusion RSS: Monitor Profiles and Identical Displays Mon, 06 Apr 2026 03:42:29 GMT en hourly 1 https://www.displayfusion.com/Discussions/RSS/?TopicID=0199cbac-aa8b-779d-96b7-55b4410c51e1 https://www.displayfusion.com/Discussions/View/monitor-profiles-and-identical-displays/?ID=0199cbac-aa8b-779d-96b7-55b4410c51e1#3 Sat, 11 Oct 2025 17:43:19 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/monitor-profiles-and-identical-displays/?ID=0199cbac-aa8b-779d-96b7-55b4410c51e1#3 DisplayFusion Thanks for the update...

I've come to learn that this a common problem with cheap displays. I'm sure an ability by DisplayFusion to handle the situation would benefit many.

In addition to the display profiles having trouble, taskbar settings are unreliable.

I was able to work around my profile problem using a PowerShell script devloped around MultiMonitorTool API.

Thanks ]]> https://www.displayfusion.com/Discussions/View/monitor-profiles-and-identical-displays/?ID=0199cbac-aa8b-779d-96b7-55b4410c51e1#2 Fri, 10 Oct 2025 18:21:42 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/monitor-profiles-and-identical-displays/?ID=0199cbac-aa8b-779d-96b7-55b4410c51e1#2 DisplayFusion This isn't something we currently support, but we have a feature request open to detect the monitors based on the device path rather then the ID, which would probably fix this up. I've added your vote to it, we'll let you know if it's something we add in the future.

thanks! ]]> https://www.displayfusion.com/Discussions/View/monitor-profiles-and-identical-displays/?ID=0199cbac-aa8b-779d-96b7-55b4410c51e1 Fri, 10 Oct 2025 01:11:55 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/monitor-profiles-and-identical-displays/?ID=0199cbac-aa8b-779d-96b7-55b4410c51e1 DisplayFusion I have a situation where monitor profiles are not behaving as expected.

I have four displays, two over DisplayPort, two via USB-C (DP-Alt). The displays don't seem to be enumerated consistently, and thus Windows orders them differently on boot vs resume from standby etc. That is, the Identity Numbers displayed in DisplayFusion change.

To make matters worse, the two DP-Alt displays are cheap panels that report identical EDID info (serial number, etc.) I used the CRU (ToastyX, Custom Resolution Utility) to give them unique Device ID, Name, Serial Numbers. See below for how these displays are currently identified by MonitorInfoView.

DisplayFusion still does not reliably recognize these displays after resuming from standby or manually connecting/disconnecting the cables; applying a profile often causes one of the displays to be marked as disabled. See below for how DisplayFusion "sees" these displays per a profile export. I see that DisplayFusion did not recognize the modified serial number, but does see the unique custom MakeModel.

I have tried saving profiles with the "Monitor ID Detection Mode Override" both in its default (empty) state and with the value of "1".

MultiMonitorTool, with its "Use Serial Number in Load Config" setting, does correctly manage these displays.

Is there a way to have DisplayFusion support my scenario? Specifically, it seems that identifying the displays via MakeModel and SerialNumber would be ideal while ignoring device paths, etc.

Thanks

MonitorInfoView
---------------
Display A
Name : \\.\DISPLAY48
Device ID : PCI\VEN_8086&DEV_46A6&SUBSYS_89C0103C&REV_0C
Device Key : \Registry\Machine\System\CurrentControlSet\Control\Video\{E591323B-A5E7-11EF-A52A-E073E72BE9F2}\0002
Monitor ID : MONITOR\NPD0B04\{4d36e96e-e325-11ce-bfc1-08002be10318}\0035
Short Monitor ID : NPD0B04
Monitor Key : \Registry\Machine\System\CurrentControlSet\Control\Class\{4d36e96e-e325-11ce-bfc1-08002be10318}\0035
Monitor Name : N3-A
Monitor Serial Number: N3 20241104A

Display B
Name : \\.\DISPLAY49
Device ID : PCI\VEN_8086&DEV_46A6&SUBSYS_89C0103C&REV_0C
Device Key : \Registry\Machine\System\CurrentControlSet\Control\Video\{E591323B-A5E7-11EF-A52A-E073E72BE9F2}\0003
Monitor ID : MONITOR\NPD0B04\{4d36e96e-e325-11ce-bfc1-08002be10318}\0034
Short Monitor ID : NPD0B04
Monitor Key : \Registry\Machine\System\CurrentControlSet\Control\Class\{4d36e96e-e325-11ce-bfc1-08002be10318}\0034
Monitor Name : N3-B
Monitor Serial Number: N3 20241104B

"Monitor0_Json"="{\"UniqueID\":{\"DeviceId\":1,\"MakeModel\":\"DELL U2722D\",\"SerialNumber\":\"1095848012\",\"ManufactureCode\":\"DEL\",\"ManufactureProductCode\":\"16941\",\"ManufactureYear\":2021,\"ManufactureWeek\":46,\"DisplaySizeInches\":27.0,\"FallbackDevicePath\":\"\\\\\\\\?\\\\DISPLAY#DEL422D#4&20320f8f&0&UID8261#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}\"},\"MakeModel\":\"DELL U2722D\",\"DeviceIdRaw\":1,\"IsAttached\":true,\"BoundsX\":0,\"BoundsY\":0,\"BoundsWidth\":2560,\"BoundsHeight\":1440,\"RefreshRateNum\":24150000,\"RefreshRateDen\":402832,\"RefreshRateInterlaced\":false,\"Orientation\":0,\"DisplayConfigScaling\":1,\"MonitorAddSource\":2,\"DpiScalingPercent\":100,\"Splits\":[]}"
"Monitor1_Json"="{\"UniqueID\":{\"DeviceId\":2,\"MakeModel\":\"DELL U2722D\",\"SerialNumber\":\"1095782476\",\"ManufactureCode\":\"DEL\",\"ManufactureProductCode\":\"16941\",\"ManufactureYear\":2021,\"ManufactureWeek\":46,\"DisplaySizeInches\":27.0,\"FallbackDevicePath\":\"\\\\\\\\?\\\\DISPLAY#DEL422D#4&20320f8f&0&UID12613#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}\"},\"MakeModel\":\"DELL U2722D\",\"DeviceIdRaw\":2,\"IsAttached\":true,\"BoundsX\":-2560,\"BoundsY\":0,\"BoundsWidth\":2560,\"BoundsHeight\":1440,\"RefreshRateNum\":24150000,\"RefreshRateDen\":402832,\"RefreshRateInterlaced\":false,\"Orientation\":0,\"DisplayConfigScaling\":1,\"MonitorAddSource\":2,\"DpiScalingPercent\":100,\"Splits\":[]}"
"Monitor2_Json"="{\"UniqueID\":{\"DeviceId\":3,\"MakeModel\":\"N3-A\",\"SerialNumber\":\"539234564\",\"ManufactureCode\":\"NPD\",\"ManufactureProductCode\":\"2820\",\"ManufactureYear\":2024,\"ManufactureWeek\":45,\"DisplaySizeInches\":16.0,\"FallbackDevicePath\":\"\\\\\\\\?\\\\DISPLAY#NPD0B04#4&20320f8f&0&UID16965#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}\"},\"MakeModel\":\"N3-A\",\"DeviceIdRaw\":3,\"IsAttached\":true,\"BoundsX\":91,\"BoundsY\":1440,\"BoundsWidth\":1200,\"BoundsHeight\":1920,\"RefreshRateNum\":16747000,\"RefreshRateDen\":279110,\"RefreshRateInterlaced\":false,\"Orientation\":3,\"DisplayConfigScaling\":1,\"MonitorAddSource\":2,\"DpiScalingPercent\":125,\"Splits\":[]}"
"Monitor3_Json"="{\"UniqueID\":{\"DeviceId\":4,\"MakeModel\":\"N3-B\",\"SerialNumber\":\"539234564\",\"ManufactureCode\":\"NPD\",\"ManufactureProductCode\":\"2820\",\"ManufactureYear\":2024,\"ManufactureWeek\":45,\"DisplaySizeInches\":16.0,\"FallbackDevicePath\":\"\\\\\\\\?\\\\DISPLAY#NPD0B04#4&20320f8f&0&UID24646#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}\"},\"MakeModel\":\"N3-B\",\"DeviceIdRaw\":4,\"IsAttached\":true,\"BoundsX\":1291,\"BoundsY\":1440,\"BoundsWidth\":1200,\"BoundsHeight\":1920,\"RefreshRateNum\":16747000,\"RefreshRateDen\":279110,\"RefreshRateInterlaced\":false,\"Orientation\":1,\"DisplayConfigScaling\":1,\"MonitorAddSource\":2,\"DpiScalingPercent\":125,\"Splits\":[]}" ]]>