KVM display switching issue

[Danish297]

@Edhawk @Shaneee @leesurone @All

need your help again

My current Setup is as below:
Machine A
Dual-boot system:
Hackintosh (macOS 26.6)
Ubuntu Linux

Machine B
Windows 11 Pro

Hardware
Keyboard, mouse, and monitor are connected through a TESmart KVM switch.

Scenario 1: Windows 11 Pro + Ubuntu
When Machine B (Windows 11 Pro) and Machine A (Ubuntu) are connected through the TESmart KVM, display switching works correctly in both directions. The monitor detects the signal normally after switching.

Scenario 2: Windows 11 Pro + Hackintosh(macOS 26.6)
When Machine B (Windows 11 Pro) and Machine A (Hackintosh/macOS 26.6) are connected through the same TESmart KVM, display switching fails when switching to the Hackintosh. The monitor reports "No Signal" or "Signal Lost".

Troubleshooting Performed
Added the monitor's EDID information in OpenCore using DeviceProperties.
Attached my current config.plist for review.

 

[Danish297]

Mapping USB Ports is always a bit of trial and error and it can get frustrating but asking me to do it for you remotely, without direct access to your machine, raises the level of difficulty to a point I won't commit to. I see you added SSDT-UIAC.aml to your ACPI files, you do not want that enabled for what you are trying to do.
I uploaded your EFI with that and your USBPorts.kext disabled and the XHCIPortLimit Quirk enabled. It should boot and could enable all your USB ports for a temporary solution. It's possible none of your USB Ports will work though as well so make sure you are booting from a USB drive.

The last alternative would be install Sequoia so you can use USBToolbox to map your ports. You can add an APFS volume to the same drive as Tahoe and not hurt anything and its easy to delete later if desired. It give you a better chance at getting Bluetooth working if that is even possible with your Qulacomm card.

thanx, let me try this