Windows 10: Screen flicker from wall HDMI port for projector, works fine on direct

I have Acer Nitro 5 AN515-52 laptop. It has Core i7 8th Gen 8750H Processor. 16GB RAM/1TB HDD/Windows 10/NVIDIA GeForce GTX Graphics 1050 Ti 4 GB GDDR5, Samsung SSD 970 EVO Plus NVMe M.2 250GB as the main C partition.I am running Windows 10 - 64 bit, version 1903. It is up to date, all my intel drivers and Nvidia drivers are up to date. At my workplace, if I connect my laptop to the wall mounted HDMI port for the projector, the screen continuously flickers at an interval of 2 seconds, like on for 2 seconds then off for 2 seconds. This happens if I duplicate my display. If I choose extend, the problem goes away, and also when I choose 'second screen only'. My workplace has 4 halls each with one projector mounted from the ceiling. Every hall has wall HDMI port too. This wall port is connected to a conduit inside the wall that goes all the way up to the ceiling, then comes back to the projector.

However, if I connect the HDMI cable directly to the projector, screen duplicate works fine. All types of projection modes work fine this way. I have tried this with multiple HDMI cables in all the halls, but the situation remains exactly the same. The wall HDMI port works fine for others' laptops at workplace which are quite an old model of HP with a 4th or 5th generation i3 processor without any graphic card, i.e. they use intel onboard graphics.This issue has remained since day 1 of this laptop. I have DELL 22.5 inch LED monitor at home which I often connect to my laptop. Here, all the screen duplication modes work absolutely fine, be it 'duplicate', 'extend' or 'second screen only'. I have also connected my laptop to my 32 inch LED TV via an HDMI cable. There as well, all the screen duplication modes work totally fine. What seems to be the issue? And how to solve it?

:)

 

Projector is flickering.

I have my computer hooked up to 3 projectors (not the same brand) and 1 monitor. 1 of the projectors is flickering, the other 2 (which are on the same line) are fine. They are getting their feed from the HDMI port. Any suggestions?

 

How to direct output to the HDMI (projector)

Just trying to show a movie via the HDMI port to a projector on a Dell Inspiron 5570

 

Force Display Output via HDMI Port

Windows 10 Question: The goal is to display two screens (same video screen) from the computer to two projectors for a presentation using Power Point Slides. Attaching to one projector works fine, but when I attach a HDMI splitter to hook up the second
projector, the computer no longer detects the display and will use the HDMI port as an output.



Thus, can you force a video output from the HDMI port using Windows 10.