Question Laptop external monitor keeps turning black.

Oct 16, 2020
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Hello,

When I connect my AOC Q24P2Q monitor (1440p 75hz) to my ASUS TUF FX505DU via a 2.0 HDMI cable, It keeps exhibiting artefacts like random horizontal lines and then turning black and on again. This happens when the resolution is turned up to 1440p and refresh rate to 75hz. When I set it up in 60hz the problem no longer persists. So far I've tried:

  • Using the hdmi cable included with the monitor --> makes it even worse;
  • Connect the monitor using the same 2.0 hdmi cable to my desktop pc --> it works as it should on 1440p 75hz;
  • Reinstall graphics driver using DDU;
  • Disable cpu virtualization in BIOS;
None of these have worked... Can somebody please help??
 

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