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Resolution & fps wrong and cannot select correct option

DerkDirkDerkinson
By DerkDirkDerkinson
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Hi all, I'm at my wits end trying to figure this out. Hoping someone here could help!

 

I have two monitors, one 1440p (DisplayPort - BenQ EX3203R) and the other 1080p (HDMI - BenQ XL2720Z).

 

I've always had an issue setting my XL monitor to 144hz using a DP so just gave up on that one and use a HDMI for a stable connection.

 

But my main monitor, the EX, this morning now has the wrong resolution and a max of 60hz selectable and I don't know why.

 

All drivers up to date.

 

In Nvidia Control Panel, the recommended is "4k x 2k, 3840 x 2160 (recommended)" at 60Hz, when before today it was the normal 2560 x 1440 at 144Hz.

 

Now I don't even have the option to select 1440p @ 144 in Nivida Control Panel. I can choose 1440 in the Windows 11 settings (which also says my recommended is 3840 x 2160) but cannot set 144Hz and after setting to this, if I check NCP, it says it's still set to the 4k x 2k resolution.

 

In my montior OSD, it says:

DP

3840 x 2160 @ 60

2560 x 1440 @ 144

image.png.ee76e489f2c601a6b6bc3cda77b95522.png

 

image.png.7ec1aa5f7a4c21e3cd33b69607e2a9d1.png

 

In Windows Display Settings it says:

Active Signal Mode: 3840 x 2160, 60Hz

image.png.1492c0d1144d9dcc8c031f44acb68396.png

 

Operating System: Win10 64bit

Specs: Intel i7 10700K / 32GB DC RAM @ 3200 / RTX 3080 (Palit Microsystems) / MB MPG Z490 Gaming Carbon WIFI

Bios was recently updated to latest version

 

Any ideas? Thank you for reading.

 

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2 minutes ago, DerkDirkDerkinson said:

Hi all, I'm at my wits end trying to figure this out. Hoping someone here could help!

 

I have two monitors, one 1440p (DisplayPort - BenQ EX3203R) and the other 1080p (HDMI - BenQ XL2720Z).

 

I've always had an issue setting my XL monitor to 144hz using a DP so just gave up on that one and use a HDMI for a stable connection.

 

But my main monitor, the EX, this morning now has the wrong resolution and a max of 60hz selectable and I don't know why.

 

All drivers up to date.

 

In Nvidia Control Panel, the recommended is "4k x 2k, 3840 x 2160 (recommended)" at 60Hz, when before today it was the normal 2560 x 1440 at 144Hz.

 

Now I don't even have the option to select 1440p @ 144 in Nivida Control Panel. I can choose 1440 in the Windows 11 settings (which also says my recommended is 3840 x 2160) but cannot set 144Hz and after setting to this, if I check NCP, it says it's still set to the 4k x 2k resolution.

 

In my montior OSD, it says:

DP

3840 x 2160 @ 60

2560 x 1440 @ 144

image.png.ee76e489f2c601a6b6bc3cda77b95522.png

 

image.png.7ec1aa5f7a4c21e3cd33b69607e2a9d1.png

 

In Windows Display Settings it says:

Active Signal Mode: 3840 x 2160, 60Hz

image.png.1492c0d1144d9dcc8c031f44acb68396.png

Any ideas? Thank you for reading.

 

You could create a custom resolution in nvidia control panel. Scroll to the bottom of the list and click more and the screen pops up click the resolutions doesng supported by the moniter and create a custom resoluton with whatever you want 

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On your BenQ XL2720Z, it can only do 144Hz using the DVI-D port or DisplayPort...HOWEVER...

Apparently, you need to update the monitor's firmware to version 004 or 005 for DisplayPort to output 144Hz... from an old LLT post about the XL2720Z.

This is because of some kind of "link bug" that BenQ eventually fixed later on.

 

https://forums.blurbusters.com/viewtopic.php?f=2&t=2467

 

 

For your BenQ EX323R 144Hz can ONLY be enabled by:

  • Using the DisplayPort connection (HDMI is limited to 120Hz)
  • Set OSD Freesync mode to "NORMAL"

image.png.e292b98549ff26c91e024a7673b97ed6.png

 

https://www.pcmag.com/reviews/benq-ex3203r

Quote

Also, it supports refresh rates of up to 144Hz. (To access the 144Hz setting, you must use a DisplayPort connection—over HDMI, the panel maxes out at 120Hz—and enable FreeSync 2 at the "normal" setting from the OSD.)

 

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Hi -racal-,

 

I'll look into that thank you. My biggest issue though is that it has been running fine for years at the right resolution and Hz. Only this morning has it gone funny.

 

Something else I have noticed now is when turning on the monitor, both my monitors flash on and off repeatedly for a few seconds too. It's never done that before either.

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Interestingly, if I set my monitor to Freesync Premium and unplug my second mointor, it now shows correct resolution and allows me to go to 120Hz. However plugging back in the second monitor puts it back to the wrong resolution and max of 60Hz...?

 

Edit: Nevermind, seemed that was a one off...

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Update: Buying a new DisplayPort 1.4 cable to check if thats the problem. Will post back when I've tested it later today.

 

If anyone else has any suggestions in the meantime, i'd be very greatful 🙂 Thank you -Rascal- and Gokul_P for your input so far!

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Hi CompMakesMeCry, Freesync is off and there are no overclocking options that I know of. Haven't messed with anything on the monitor for it to suddenly stop accepting 144Hz. The monitor is advertised as 1440p 144Hz, so would assume I wouldn't need to overclock anything anyway?

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8 hours ago, CompMakesMeCry said:

keep freesync of on your monitor it limits the hz to 60 and it might also be overclock setting in your monitor to set to higher refresh rates.

 

 

Some BenQ monitors, it seems(?) like this BenQ EX3203R included, needs to have Freesync enabled to run at advertised 120Hz / 144Hz refresh rate.

Even then, if you use Freesync 'Premium' it is use 10-bit color, I guess it is too much bandwidth, it is limited to 120 Hz.

Freesync ' Normal' uses 8-bit color, and then it can run at 144 Hz.

 

The BenQ monitor manual only mentions 144Hz when Freesync is available...I don't know.

Unless there is a more recent firmware update that unties that.

 

Older BenQ monitors requiring the use of the DV-D port for 144Hz is also a known thing.

I had a 27" 1080p 144Hz G-Sync BenQ monitor, that also needed the DVI-D port for 144 Hz.

When I upgraded my GTX 1070 to a RTX 3060Ti, the DVI-D port was dropped in favor of HDMI / DP...so no 144 Hz...

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Okay I think I have found the problem. It's the fact the drivers are only made up to Windows 10, and i'm running Windows 11.

 

Just tested the monitor on a Windows 10 PC and it worked perfectly.

 

Emailing BenQ now to see if they are planning on updating their driver.

 

As far as I know, this monitor is only around 4 years old. Is that really enough time for them to leave it in the dust...?

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