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bward97
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HP Pavilion Laptop PC 15-eg0000 (172Z7AV) Dual Monitor Setup

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HP Pavilion Laptop PC 15-eg0000 (172Z7AV)
Microsoft Windows 10 (64-bit)

I have connected my new laptop to two identical external monitors using a USB-C to Dual DisplayPort adapter. The monitors are detected and I can extend the display across both monitors. The laptop specifications indicate that the USB-C port supports DP 1.4.

 

The problem is that one monitor is displayed in the native resolution (2560 x 1440), but the other is not (1920 x 1080). The maximum display resolution listed in the windows display settings for the second monitor is 1920 x 1080.

 

How can I get the both monitors to display at the native resolution? I have spoken to Microsoft and Intel who both told me that this is an issue from HP's end. The 11th Gen Intel Core i5-1135G7 supports up to 4 displays according to the chip specifications.

 

If monitor A is displaying at the native resolution and monitor B is displaying at the low resolution, and I swap the DisplayPort connections, then monitor A will show at the low resolution and monitor B will show at the native resolution. If I connect monitor A or B by themselves then they will each display at native resolution. The problem only occurs when both monitors are plugged in.

 

I have also tested the adapter with a HP Z book using the thunderbolt 3 port which works perfectly fine - both monitors display at the native resolution

 

I have tried uninstalling / installing multiple drivers including:

  • Intel Iris Xe Graphics Version 27.20.100.8935
  • Intel Iris Xe Graphics Version 27.20.100.9664
  • Intel Iris Xe Graphics Version 27.20.100.9684

I don't understand why my HP Pavilion isn't allowing both monitors to display at native resolution. Any help would be appreciated.

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