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Monitor shuting off for no reason (that I know)

aki12

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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!
 
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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

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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!
 
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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

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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.
 
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Not sure what to tell you. If me, I would try a different graphics card - but then I have a few laying around.
 

aki12

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As I said in the beginning the pc is from work. And I'm the only one with a GPU! It would be very difficult to persuade my boss to buy another card.
Non the less thank you very much for your time!
But if you like you can send me one if you have any card siting around!!! Hahaha!
 

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Gpu and monitor dont like eachother
 

aki12

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I have 2 monitors of the same exact brand and model. Only the one is shutting down... My thoughts would be that both of them would have problem with the graphics.
 
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Gpu and monitor dont like eachother
The odd part is, he has swapped identical monitors and the problems moved to the second monitor. So I suspect the graphics solution.
 

aki12

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If it's the graphics card I'm ....!!! There is no way my boss will spend the money for a new one. I will try to borrow one from one of my friends just to be sure its not the screen.
 

aki12

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I made an experiment today that I did not tried so far. I've swapped the screens on the stand. Just the screens, no cables no power supply nothing else, just the screens. Before, only the right monitor turned off, now only the left. So it's the same screen.
I don't know...I don't know whats going on!
 
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I've swapped the screens on the stand.
Umm, swapping monitors is what I suggested you do in my first post and you replied that you tried that many times. You even said in your first post you tried a different power supply.

I don't know whats going on!
You just determined what's going on. That screen/display is faulty. It is either loosing sync with the card and thus signal, or for some reason thinks it is getting a sleep command from the card.
 

aki12

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I swapped the cables the first time. It's like swapping the screens I suppose. Another time I swapped the screens with the power suppliers but never only the screens. I don't know how I forgot to do that.
You say its the screen, but when I use the screen in an other pc, by it self, does not turn off. I'm very confused!
 
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Back in my radio maintenance days, we used to call such confusing events, "FM". That was not for a type of radio band for listening to music in our cars but rather for a certain type of magic! ;)

"In theory" everything should be working just fine. But "theory" and the "real-world" don't always gibe - and we see that a lot in electronics.

The fact the one monitor works fine with your card in either port "suggests" the card is fine. And the fact the working monitor and the failing monitor are the same model number "suggests" the monitor design is fine. But the fact the one monitor fails "suggests" this failing monitor does not quite adhere to proper specs as accurately as the first monitor. Perhaps it is slightly out of specs to the high side and the graphics card is slightly out to the low side and the total gap is too high to stay locked in sync. And perhaps the good monitor is a little closer to specs. And perhaps the second computer is too.

Who knows? I sure don't. All I can say is everything is pointing to the second monitor as the problem.

Can you swap this failing monitor with the second (working) PC permanently?
 
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An idea to potentially solve this is to connect the “faulty” monitor to iGPU instead of the 3050. It’s a 13600 and, since you haven’t specified it being an F model, it does have an iGPU and the motherboard SHOULD have an HDMI port most likely.
 

aki12

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I was just writing a response to you Onasi, that I tried to connect to the iGPU and stuff, just to realize that I have the 13400F CPU. So no luck there!
 
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Good idea. You might have to go into the BIOS Setup Menu and enable the integrated graphics as some will automatically disable when a card is installed. I note according to the Intel Arc for the i5-13600, it supports "eDP 1.4b, DP 1.4a, HDMI 2.1". So you should have some nice options to try - depending on your motherboard.

Worth a try, IMO.

Edit - oops! You answered while I was taking too long to type. I too was going by your opening post where you said 13600. Oh well.
 
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@aki12
Then, well, no real ways around it (if you want to keep both these exact monitors) that won’t involve a bit of spending. Either a GPU or a CPU with iGPU. Cheaper, but more questionable, is getting a second HDMI cable and seeing how the GPU likes it when BOTH screens are connected via HDMI. Might want to start with that.
 
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The problem is, this is a work computer and work monitors and the boss does not seem willing to spend money when ultimately, the monitor still works.
 

aki12

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That's the problem, the GPU has only one HDMI!
No worries Bill_Bright!
Thanks again guys for your time! It seems that I will have to live with the screen turning off every now and then! (some times every 2 minutes!)
And here we go! at the moment I'm writing this message the screen shut down 2 times!! In a row!!!
Lets hope one day (sooooon) that it takes his last breath so my boss will have no other excuse to buy me new one!
 
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What about permanently swapping a monitor with that second PC?
 

aki12

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What about permanently swapping a monitor with that second PC?
Sorry I didn't understand what you mean.
The other pc I tried if you mean that was an old i3 i believe 4th gen, or somthing like that. The only good pc at the office is mine. Everyone else has much worse pc than mine. So...
 
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You said you tried this faulty screen on another PC. Doesn't that other PC have a monitor? Can't you use that monitor on your computer?
 

aki12

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My monitor is 1440p the other is a curved samsung 1080p (and very old). It's very strange using two different screen resolutions. I know I'm picky but I work with photoshop and illustrator a lot and its very difficult to work like that.
 
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