Changing Active Signal Resolution on a 2nd display - 1st display works, 2nd display does not

Question

Have 2 displays connected to my ASUS motherboard running Windows 10. Both displays (HP & AUO flat panel) originally had the Active Signal Resolution set to 1920x1080 and the Desktop Resolution set to 1024x768.

I tried changing the Active Signal Resolution in Windows 10, but could never get it changed so I downloaded the Intel Graphics Command Center program. My board has Intel HD Graphics 500 driver from 2/3/22.

Using the Intel Graphics Command Center, I was able to change the HP display to "Maintain Display Scaling" which did change the Active Signal Resolution from 1920x1080 to 1024x768.

When I use the Intel Graphics Command Center and try to change AUO flat panel display to "Maintain Display Scaling" it never changes the Active Signal Resolution to the 1024x768 which I need. It always stays at 1920x1080. I know this AUO flat panel can display 1024x768 because it works in Windows 7 & Windows CE !

So, how do I change the Active Signal Resolution to 1024x768 for this AUO display in Windows 10? Is there a registry mod I can make?

Answer 1

Hello Joe Graf,

Good to see you in Microsoft Community.

There are several ways to set monitor resolution:

This is usually set here:

Settings - System - Display - Click on Display 1 or 2 - Change resolution below

If it cannot be changed, used this method:

Settings - System - Display - Advanced Display Settings - Select Display - Display Adapter Properties for Display - List All Modes - Select 1024x768 and Apply

This fixes the display's resolution at 1024x768.

Please feel free to let me know how it goes.

Kirk | Microsoft Community Support Specialist

Answer 2

Kirk,

I was just able to try. Was on vacation for a week.

The Active Signal Resolution never changes to 1024x768 going through the "LIST ALL MODES" procedure. For my display 1 which is a AUO flat panel G150XG01 V3 (1024x768).

How do I change the ACTIVE SIGNAL RESOLUTION to 1024x768 for this display (AUO flat panel) ?

Answer 3

Dear Joe Graf,

I'm sorry for not replying to you in time.

Please click Display adapter properties for Display 1 in the screenshot,then click the List All Modes. If your display device supports this resolution,you should be able to see the corresponding options.

Have you not found the corresponding resolution option in this list? Could you give me a screenshot to confirm the options in the List All Modes？

We look forward to your response.

Best regards

Mitchell - | Microsoft community support expert from MSFT

Answer 4

All modes show up, the flat panel from AUO never changes the ACTIVE SIGNAL RESOLUTION.

Answer 5

Dear Joe Graf,

Thanks for your reply in this community.

First of all, thank you very much for your screenshot. We tried to restore your problem on the test device, and found that when the refresh rate was manually set to a specific resolution such as 60 Hz, the active signal resolution could be set to 1024X768，but when it was set to 75 Hz,it didn't work.

Therefore, I suggest you could try to manually adjust the refresh rate at present, not only 60 Hz, but also 59 Hz、75 Hz and so on.

If it still doesn't work, we suggest you visit HP's official drive website, try to download and install the display driver, then confirm that whether it could be adjusted or not.

Let us know if it works.

Best regards

Mitchell - | Microsoft community support expert from MSFT