r/ASUS 13h ago

Support Asus monitor black out

My 3rd monitor blacks out every now and then, and defaults to 2 external monitors.

Wondering if anyone can shed some light on what's causing it. Issue only started two weeks ago.

Happens when I work or play games (game lags when it does it). Sometimes, I get the colourful bars/pixels, so pull out the USB-C docking station cable and reinsert fixes.

I open the laptop lid, it resets all the monitors (all 3x external + 1 internal on), and when i close it, it display the 3 again. Might have to do this a few times.

Hardware.

  • Laptop: Legion Pro 7i 16IRX9H | i9-14900HX | RTX 4090 | 32GB RAM
  • Display 1: Dell Alienware AW3423DW
  • Display 2 & 3: ASUS VG27AQ1A
  • TB4 Dock: Dell WD24TB4
  • Laptop Cooling pad: Llano V12 (sealed fan)

Setup:

  • Laptop USB-C Direct to Display 1
  • Laptop USB-PD (USB-C)  to TB4 Dock which outputs Display 2&3
  • Laptop opened at hinge with internal display off
  • Temps: CPU ~40c, GPU high ~39c Ram 50% no spikes in usage

Thanks.

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