Benq XL2411P cannot get 144hz

[bentearwalking]

I am using laptop with gtx 1070 that has mini displayport. (Asus Rog GL502vs) and Benq XL2411P 1080p 144hz monitor. When they are connected via mini displayport I cannot change resolution in nvidia control panel to 144hz or in windows. Each time the monitor will go black for 10 seconds then come back and the option will not have saved to 144hz it will go back to 60hz. Any ideas? Defeats the purpose of getting this monitor tbh.

 

[Kashimi]

The BenQ likely only supports the 144Hz with a full display port cable.

 

[bentearwalking]

http://www.tomshardware.com/forum/id-3243916/mini-display-port-display-port-144.html

I was reading here they are the same just different size.

 

[boju]

Yeah, size doesn't matter. What cable did you get? Displayport cables are generally reliable but there are badd eggs out there and reduced bandwidth cables.

Seeing as you see the option there for 144hz means it has detected it being capable. So it's either the cable or multi screen setting. Are you setting the monitor as the only screen before changing Hz?

 

[bentearwalking]

As I am in the Philippines, my options for cables are limited. I purchased this one here which, for all intents and purposes, seemed to be favorable. The cable did not look damaged and seemed brand new with nice packaging. With other people reviewing they were getting 144hz with the cable, I wasn't witch hunting the cable just yet - thinking it may be more software related or settings related.

https://www.lazada.com.ph/products/ugreen-15meter-mini-dp-to-dp-cable-mini-displayport-thunderbolt-to-displayport-male-to-male-audio-video-adapter-cable-15mblack-intl-i7208014-s9139941.html?spm=a2o4l.searchlist.list.3.7b795af1aruCPq&search=1

Here are the windows settings I am using: https://gyazo.com/264cbbd7c87c028477fb4e94ffb45ab0

And of course, with these settings my laptop is displaying a blank screen and my monitor is on.

For what it's worth I noticed this: https://gyazo.com/4da8fb224e18499c02b1e08bcc5df683 When I click apply the screen goes black 10 seconds. Then comes back and Apply is not greyed out meaning it never applied. The same behavior happens directly from the Nvidia settings here: https://gyazo.com/212d78a9a09966daddde517bf7abf4fa

 

[boju]

There's a timer window that shows if you can see this image to press enter to accept, this lasts for 10 or so seconds and if not applied it will revert. Obviously you don't want to do hit enter while in a blank state otherwise itll stay like that until you disconnect the displayport (hopefully).

Only other thing that comes to mind is check input signal on the monitor is set to DP in case it's not auto switching.

 

[bentearwalking]

I thought of that as well, I even tried to hit enter and nothing happened actually. The monitor is actually working now with the DP cable. It is what I am using to type this message, it is just when I try to apply the 144hz setting up from 60hz it goes black and reverts to 60. :/

 

[boju]

Try 120Hz

 

[bentearwalking]

And Displayport is selected through external monitor buttons as well

 

[boju]

Would Gsync be possibly getting in the way? The laptop has Gsync but don't think the monitor has, have you tried disabling it in Nvidia?

 

[bentearwalking]

I did disable G-sync in Nvidia control panel

 

[bentearwalking]

https://gyazo.com/2467ba353702c9fc70e4e610c0165ba7?token=2d16e8b1b48aa60df5db55a8f2fa945f

Would any of these settings matter?

 

[boju]

no those settings wouldn't cause this. The monitor should just work straight from Window's resolution and Hz.

Do you get a picture at 85Hz 100Hz?

 

[bentearwalking]

The options available to me are 24hz etc etc 60 hz then 100hz nothing in between. Any of the ones 60hz and below do work, but the 100hz + do not work. Black screen same as before.

 

[boju]

Return the cable i would suggest try next, it shouldn't be this difficult.

 

[bentearwalking]

Alright, working on that. Will update in a few days.

 

[boju]

Can you get the brand Accel?

 

[bentearwalking]

I found another local solution that can deliver in 48 hours for a fair price, so I'll take my chances with that. If it doesn't work I can order an Accell cable 2 weeks shipping for $40 US. Hoping the other solution will work. Also I found that my monitor had a Displayport cable in the box but its DP to DP and I need Mini DP to DP.

 

[bentearwalking]

Got the new cable and it works, never buy a UGREEN cable. Thanks for the help, amazing forum here.

 

[boju]

Great

Your welcome