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PG27AQN black screen when using more than 100hz

asforce
Level 7

I just bought a PG27AQN, but I can't get it to work with more than 100Hz. Whenever I set the refresh rate higher than 100Hz, the screen remains black until I switch back to either 100Hz or 60Hz. I've tried using both the DisplayPort cables (the one that came with the monitor and another from my current monitor) and an HDMI cable, but I encounter the same issue. Is the monitor defective, or is there some configuration setting that I'm missing?

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1 REPLY 1

bass_junkie_xl
Level 11

have the same monitor with default dp cable  no issius with 2 more monitor on same  4090 .  try the diffrent slots on the video card  dp 1 dp 2 dp 3  clean instal  nvidia drivers safe mode 

this  monitor  on my 3080 rtx rig + 2 more 27 inch  165 hz monitor works completly fine  360 hz mode ulmb 2 on 2d rig as well

Rig # 1 - 14900Ks SP-118 | 87 MC @ 6.0 GHZ | 5.2 R | 4.7 E | DDR5 48GB @ 8,600 c36 | Strix RTX 4090 | PG27AQN 1440P 27" 360 Hz G-Sync ULMB 2

Rig # 2 - 14900K-SP-120 | 89 MC @ 5.9 GHZ | 5.2 R | 4.7 E | DDR4 32GB @ 4,300 c15 | Strix RTX 3080 | Aoc 1080P 25" 240 Hz G-Sync