Question Second monitor turns off when gaming ?

[ufibu]

So I have dual monitor setup

• Monitor One
  • Connected to HDMI > HDMI
• Monitor Two
  • Connected with HDMI (Monitor) > DP (VGA)

Spoiler: My current splitter

The problem is, whenever I tried to play games, the 2nd monitor turn off (black screen), and sometimes turn it on again, or when I alt + tab, its showing again.

I tried to change the cable, but the problem still exist.

So my question is, what could be the problem? VGA, PSU or the monitor?

My Spec listed below

• PSU LUX 550W
• Radeon RX 6600
• Ryzen 5 5600X
• 32GB RAM

 

[COLGeek]

VGA refers to the old analog video connection supported by some monitors. You aren't using that in any way, correct?

If you swap the order of your displays (with the appropriate cables), does the problem "move"?

 

[ufibu]

VGA refers to the old analog video connection supported by some monitors. You aren't using that in any way, correct?

If you swap the order of your displays (with the appropriate cables), does the problem "move"?

If I swap the cable to the other monitor, yes.

For example

• Monitor Two
  • Connected to HDMI > HDMI
• Monitor One
  • Connected with HDMI (Monitor) > DP (VGA)

The problem move to Monitor One which the one that connected with splitter

 

[ufibu]

Yea I do think the main problem is the monitor, because using the splitter, but I'm not sure because some say its might be the PSU. But if this because the monitor why does it only happen when I'm running games or lets say full load

 

[COLGeek]

Is this your PSU? How old is it?

LUX 550W - AeroCool

POWER SUPPLY UNIT Featuring a stylish and elegant design, the LUX PSU delivers the perfect balance between power and luxury. This premium quality power supply efficiently powers your system while elevating the look and feel of your setup. 80Plus 230V EU Bronze Certified, the LUX delivers up to...

aerocool.io

Does either of your monitors have a native DP port? The adapter you are using could be the issue.

How hot is your GPU (video card) getting at idle and under a full load?

What resolution are you using on both displays?

Are you overclocking anything (CPU, GPU, memory)?

 

[ufibu]

Is this your PSU? How old is it?

LUX 550W - AeroCool

POWER SUPPLY UNIT Featuring a stylish and elegant design, the LUX PSU delivers the perfect balance between power and luxury. This premium quality power supply efficiently powers your system while elevating the look and feel of your setup. 80Plus 230V EU Bronze Certified, the LUX delivers up to...

aerocool.io

Does either of your monitors have a native DP port? The adapter you are using could be the issue.

How hot is your GPU (video card) getting at idle and under a full load?

What resolution are you using on both displays?

Are you overclocking anything (CPU, GPU, memory)?

Sorry for late respond, been busy with work.

Neither of my monitor have native DP Port, I also tried to buy new DP adapter, three different cables to be exact.

On normal usage (browsing with mostly 20-30 tabs) while also open youtube and vscode (i dont know if effect the GPU) but its 48C.

On full load (with funmark), its instantly turn off (black screen) on the monitor, with hot gpu 70 in the first 30 seconds.

No, I does not overclocking anything on my system.

 

[COLGeek]

If the PSU is failing under full load (a possibility), I would expect both displays to black out. Since only one, it suggests an adapter induced problem.

What resolution and frequencies are the two displays?

 

[ufibu]

If the PSU is failing under full load (a possibility), I would expect both displays to black out. Since only one, it suggests an adapter induced problem.

What resolution and frequencies are the two displays?

Both displays are 1080p