Intel(R) UHD Graphics prevents external monitors from working

[piotr-warsaw]

Hey,

I bought a set of two external monitors Kwumsy P2S for Windows and they don't work on my computer (no signal) unless I disable the Intel(R) UHD Graphics Display Adapter. After the disabling everything works correctly.
I went into the logs and I see a number of errors around oem46.inf, display.inf having a problem with starting:

Device PCI\VEN_8086&DEV_9BC4&SUBSYS_14321025&REV_05\3&11583659&0&10 had a problem starting.

Driver Name: oem46.inf
Class Guid: {4d36e968-e325-11ce-bfc1-08002be10318}
Service: igfx
Lower Filters:
Upper Filters:
Problem: 0x0
Problem Status: 0xC00000E5

I tried to reinstall the latest version of the Intel Graphics driver: 31.0.101.2115 (the version for 6th-10th generation and the version for 7th-10th generation) as well as I tried with the version 26.20.100.7985 recommended on the Acer Product Support page (unfortunately it doesn't seem like they tested the drivers with Windows 11): https://www.acer.com/us-en/support/product-support/PT515-52/NH.Q6YEP.009/downloads

Information about my system:

OS Name Microsoft Windows 11 Home
Version 10.0.22631 Build 22631
OS Manufacturer Microsoft Corporation
System Manufacturer Acer
System Model Predator PT515-52
System Type x64-based PC
System SKU 0000000000000000
Processor Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz, 2592 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date Insyde Corp. V1.10, 28/12/2020
SMBIOS Version 3.2
Embedded Controller Version 1.05
BIOS Mode UEFI
BaseBoard Manufacturer CML
BaseBoard Product Spyder_CMS
BaseBoard Version V1.10

I also have an additional GPU:
NVIDIA GeForce RTX 2070 with Max-Q design: version 546.33

[ACarmona_Intel]

Hello Piotr-warsaw,

Thank you for posting in our Intel communities.

We understand that you are experiencing issues with your two external monitors, and they don't work on your system unless you disable the Intel (R) UHD Graphics Display Adapter.

Based on our research, the issue that we have happens when a computer can't support the display in terms of colour depth, pixel count, or interface options. The monitor's cable is damaged or malfunctioning. The computer's display drivers aren't handling the secondary display properly.

For the troubleshooting steps, please follow the troubleshooting steps outlined on this page:

Troubleshooting Issues with Multiple Displays

https://www.intel.com/content/www/us/en/support/articles/000025090/processors.html

Please let us know the result of the troubleshooting steps that you will be performing so we can decide what we can do next.

Thank you, and have a great day!

Best regards,

Carmona A.

Intel Customer Support Technician

[ACarmona_Intel]

Hello Piotr-warsaw,

We are checking in with you on external monitor issue that we have, as we have not heard any response from you.

Thank you, and have a great day!

Best regards,

Carmona A.

Intel Customer Support Technician

[ACarmona_Intel]

Hello Piotr-warsaw,

We are checking in with you on the external monitor issue we are having in case you have any additional queries or require further explanation. Please know that we would be happy to assist you if you have any.

Thank you, and have a great day!

Best regards,

Carmona A.

Intel Customer Support Technician

[ACarmona_Intel]

Hello Piotr-warsaw,

We have not heard back from you, so we will close this enquiry now. If you need further assistance, please submit a new question, as this thread will no longer be monitored.

Thank you, and have a great day ahead.

Best regards,

Carmona A.

Intel Customer Support Technician