Monitor shuting off for no reason (that I know)

[aki12]

Hi everyone!
I have a problem with my setup at work. I have a dual screen setup with two AOC Q24V4EA IPS Monitor 23.8" QHD 2560x1440. The PC is an Intel 13600 16Ram and RTX3050. I have connected the first monitor with DP and the second with HDMI. (I don't have a second PD cable! Hahaha! Cheap boss, what can I do?)
The thing is that in random intervals my right screen just shuts off (about 10 to 20 times in 8 hours). I have to click the power button again to wake it. I gave the monitor to a technician for 3 days and it never shuted off to him. But the moment I connected to my setup is strarts again.
What I've done to troubleshoot till now?

1. Change cables
2. Change power supply (I had one identical from a friend)
3. Reset setting on the monitors
4. Different UPS and wall plugs
5. Clean install of Nvidia drivers
6. I dont use screen saver. Always on.

The thing is that if I swap with my old Samsung monitor (1920x1080) it works like a charm, except that on screen is in 1440p and the other in 1080p which is driving me crazy!!!!!

Here is a video that shows how is happening! I have a million of them! hahaha!
I spoke with the shop that I bought the screen but they don't accept it as a problem for the warranty.

Thanks in advance for your help!

 

[Bill_Bright]

Swap the 2 monitors around and see if the problem moves to second monitor or stays with the first. If it stays, the problem is the monitor. If it moves, the problem is the graphics solution (card).

 

[aki12]

Thank you for the replay!
I've tried it many times! And every time I have different outcomes!!Haha! But in general the second screen (that now is the 1st screen) shuts down again like always but now the other screen shuts too!
In the configuration that I have them now only one turns off.
Today I changed all the cables, I put two new Display ports and the there is no change. The second screen shuts down like crazy!

 

[Bill_Bright]

Very strange indeed.

I found one similar case and a bug in the DP protocol was blamed. The solution was to use HDMI on both monitors. That said, a different poster joined the conversation to say he is using HDMI with both monitors and has the same problem.

Are both monitors connected to the graphics card?

 

[aki12]

The thing is that the graphics card has 1 HDMI and 3 DP.
And yes. The 2 Monitors are connected to the same RTX3050.
I use this Pc to do some light video editing every now and then.