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lukie85
Adept I

not able change my 2nd monitor resolution RX 6600 XT

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Hi, 

After I change the graphic card, I can't change my 2nd screen resolution, and the resolution is much smaller than it should be.

I tried to uninstall and reinstall the driver, but the issue still exists.

1st monitor: 34" DP connection (3440*1440)

2nd monitor: 24" HDMI connection (1920*1080)

Graphics card: RX 6600 XT

 

 

lukie85_0-1629285807951.png

 

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lukie85
Adept I

Re: not able change my 2nd monitor resolution RX 6600 XT

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I just managed to fix this issue.

1) create a custom resolution for the 2nd monitor. 

lukie85_0-1635551314423.png

2) After that, there the option of the resolution appears in the display setting 

lukie85_1-1635551340651.png

 

Now finally I can use my 2nd monitor.

 

 

View solution in original post

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16 Replies
hitbm47
Miniboss

Re: not able change my 2nd monitor resolution RX 6600 XT

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Hi @lukie85 

Do you have it set to "Duplicate Displays" or 'Extend these displays"? Furthermore, maybe you can try to enabled Virtual Super Resolution, and then you might be able to select "Extend these displays" and therefore have both screens running at the resolution of the first monitor.

Kind regards

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lukie85
Adept I

Re: not able change my 2nd monitor resolution RX 6600 XT

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Hi @hitbm47 , 

 

Thanks for the reply.

I have been using "extend these displays" with my old graphic card (Nvidia 750ti), it was fine before I changed to current graphics card.

I tried what you said, but still not working.

lukie85_0-1629289220822.png

display 2 don't have the option

lukie85_2-1629289316990.png

 

hitbm47
Miniboss

Re: not able change my 2nd monitor resolution RX 6600 XT

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Hi @lukie85 

I see your display settings are set to Portrait, I am uncertain if that can cause an issue, but even though you said you did an uninstall, I would recommend the following steps:

  • Download DDU (Display Driver Uninstaller)
  • Restart computer in safe mode
  • Open DDU, then select the GPU option and then Nvidia option (even if you have already uninstalled Nvidia, this will make sure all the registries are removed). Uninstall Nvidia with DDU without restarting or exiting DDU.
  • Then Uninstall AMD driver in DDU with the restart option.
  • When Windows reboots have the Radeon driver ready for install.

If it persists it is possibly a bug with Radeon software, so I would report the issue through the bug-report tool and hope they fix it, and for the meantime possibly use an older driver that works.

Kind regards

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lukie85
Adept I

Re: not able change my 2nd monitor resolution RX 6600 XT

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Hi @hitbm47 

I followed the steps you mentioned, I still having the issue.

I ordered an HDMI to DP adapter, it's on the way, see if it helps.

hitbm47
Miniboss

Re: not able change my 2nd monitor resolution RX 6600 XT

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Hi @lukie85 

Sorry I could not help, have you tried testing it only on the problematic screen with the primary cable you are using for your 4K screen?

It may be a driver issue, since your graphics card is very new.

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lukie85
Adept I

Re: not able change my 2nd monitor resolution RX 6600 XT

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Hi @hitbm47 

I tried with my problem screen alone, it stays in low resolution. 

Thanks for your help, hope the new driver version can solve this issue.

 

hitbm47
Miniboss

Re: not able change my 2nd monitor resolution RX 6600 XT

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Maybe a driver needs to be installed for this monitor, or maybe as you say it is some HDMI compatibility problem

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lukie85
Adept I

Re: not able change my 2nd monitor resolution RX 6600 XT

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This is an old monitor, don't need driver. I also checked the website, doesn't have the driver for this model.

My adapter is on the way, will update here the outcome once I tried it.

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lukie85
Adept I

Re: not able change my 2nd monitor resolution RX 6600 XT

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Just got my adapter, same issue...

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