Blur Busters Forums

Who you gonna call? The Blur Busters! For Everything Better Than 60Hz™ Skip to content

XL2720Z Serious Blurry @144hz Need Help

Adjusting BENQ Blur Reduction and DyAc (Dynamic Acceleration) including Blur Busters Strobe Utility. Supports most BenQ/Zowie Z-Series monitors (XL2411, XL2420, XL2720, XL2735, XL2540, XL2546)

XL2720Z Serious Blurry @144hz Need Help

Postby JosephJZWu » 12 Dec 2017, 19:53

Hello gentlemen, I am newbie to monitors and really need some help with my BenQ

So I bought this brand new XL2720Z last year and it has been working properly @144hz connecting via DVI DL to GTX1070. While the other day, like 6 Dec 2017, I woke up and noticed that my left hand side monitor is blurry, while the right hand side is okay.

XL2720Z @144hz https://imgur.com/a/AA2Vh
You could see that the right hand side text is clear and it become worse and worse to the left. And when I look closer, there is a white line at the bottom of the left hand side.

At first I thought it was resolution setting problems, so I tried different combinations and found that the problem does not exist @60hz, and it goes blurrier when I raise the refresh rate.
XL2720Z @60hz https://imgur.com/a/zdsF8

I Googled a lot about the problem and found that many ASUS MG278Q have the same problem, see http://www.tomshardware.com/forum/id-35 ... nitor.html

I have also ruled out the following possible reasons:

1) Graphic cards. I forwarded my screenshot @144hz and view it on my phone, no blurry is found.
2) Nvidia drivers. I used display driver uninstaller to reinstall both newest and older driver versions. Problem still exist.
3) Win10 competability. I have dual boot system, win7 also blurs.
4) Cable not suitale. I was using DVI DL bundled with my monitor for a whole year and it worked properly @144hz. Many people suggest replacing cable would solve the problem. So I went to store and bought a DP cable, tested on-site, supporting 144hz no blur. Still, problem exist when back home.
5) Reset ALL in BenQ menu does not work.
6) ClearType adjustment not work.

I have also contacted BenQ customer service hotline, seems will go RMA in the end.
Yet I still want to fix it if it is not hardware problem. So does anybody know how or anyone have the same problem? Thanks

#And my XL2720z is running on firmware V5
JosephJZWu
 
Posts: 3
Joined: 14 Dec 2017, 00:00

Re: XL2720Z Serious Blurry @144hz Need Help

Postby Chief Blur Buster » 12 Dec 2017, 19:58

This looks like an RMA --

The left half looks like an interlace artifact but the right half isn't. If it was all over the screen I'd ask you to check interlaced versus progressive. But the asymmetry tells me that this is definitely not the issue. It's evenly split down the middle (960 pixels left, 960 pixels right)

It could be a loose LVDS ribbon cable inside the monitor, but if under warranty, I would recommend following through with RMA. However if the monitor were out of warranty, that'd be what I do (much riskier, requires opening up monitor, potentially creating more damage)
Head of Blur Busters - BlurBusters.com | TestUFO.com | Follow @BlurBusters on Twitter

       To support Blur Busters:
       • Official List of Best Gaming Monitors
       • List of G-SYNC Monitors
       • List of FreeSync Monitors
       • List of Ultrawide Monitors
User avatar
Chief Blur Buster
Site Admin
 
Posts: 5078
Joined: 05 Dec 2013, 15:44

Re: XL2720Z Serious Blurry @144hz Need Help

Postby JosephJZWu » 14 Dec 2017, 00:20

Chief Blur Buster wrote:This looks like an RMA --

The left half looks like an interlace artifact but the right half isn't. If it was all over the screen I'd ask you to check interlaced versus progressive. But the asymmetry tells me that this is definitely not the issue. It's evenly split down the middle (960 pixels left, 960 pixels right)

It could be a loose LVDS ribbon cable inside the monitor, but if under warranty, I would recommend following through with RMA. However if the monitor were out of warranty, that'd be what I do (much riskier, requires opening up monitor, potentially creating more damage)


I tried to reply several times until i noticed that I am among the three users who needs to re-register hahaha

Thank you for your help, Chief. I've decided to go RMA, my monitor is still under warranty, hope the service is good in my region (hardly).

I looked closer later and found the white line on the left still exist @60hz, but much thinner so no blur caused. Loosen cable should be the reason, but still curious why higher refresh rates makes it blurrier :shock:
JosephJZWu
 
Posts: 3
Joined: 14 Dec 2017, 00:00

Re: XL2720Z Serious Blurry @144hz Need Help

Postby Chief Blur Buster » 14 Dec 2017, 12:57

JosephJZWu wrote:I tried to reply several times until i noticed that I am among the three users who needs to re-register hahaha

Thank you for your help, Chief. I've decided to go RMA, my monitor is still under warranty, hope the service is good in my region (hardly).

I looked closer later and found the white line on the left still exist @60hz, but much thinner so no blur caused. Loosen cable should be the reason, but still curious why higher refresh rates makes it blurrier :shock:

It won't be caused by a loose external cable (not DisplayPort, not HDMI, not DVI)
This is the type of artifact caused by a loose internal cable inside monitor ("LDVS ribbon cable").

Higher Hz causing left side to go blurrier is also a "loose internal LVDS ribbon cable" symptom. Sometimes displays are internal handled by multiple sections of display, which often manifests itself as vertical strips of the display. The leftmost strips appear to be malfunctioning.

But do an RMA. I do not recommend opening the monitor unless out of warranty...
Head of Blur Busters - BlurBusters.com | TestUFO.com | Follow @BlurBusters on Twitter

       To support Blur Busters:
       • Official List of Best Gaming Monitors
       • List of G-SYNC Monitors
       • List of FreeSync Monitors
       • List of Ultrawide Monitors
User avatar
Chief Blur Buster
Site Admin
 
Posts: 5078
Joined: 05 Dec 2013, 15:44

Re: XL2720Z Serious Blurry @144hz Need Help

Postby JosephJZWu » 20 Jan 2018, 04:55

Chief Blur Buster wrote:
JosephJZWu wrote:I tried to reply several times until i noticed that I am among the three users who needs to re-register hahaha

Thank you for your help, Chief. I've decided to go RMA, my monitor is still under warranty, hope the service is good in my region (hardly).

I looked closer later and found the white line on the left still exist @60hz, but much thinner so no blur caused. Loosen cable should be the reason, but still curious why higher refresh rates makes it blurrier :shock:

It won't be caused by a loose external cable (not DisplayPort, not HDMI, not DVI)
This is the type of artifact caused by a loose internal cable inside monitor ("LDVS ribbon cable").

Higher Hz causing left side to go blurrier is also a "loose internal LVDS ribbon cable" symptom. Sometimes displays are internal handled by multiple sections of display, which often manifests itself as vertical strips of the display. The leftmost strips appear to be malfunctioning.

But do an RMA. I do not recommend opening the monitor unless out of warranty...


Just an update, thanks to Chief. I went for RMA and they provided me a brand new monitor. Yeah!
JosephJZWu
 
Posts: 3
Joined: 14 Dec 2017, 00:00

Re: XL2720Z Serious Blurry @144hz Need Help

Postby Chief Blur Buster » 20 Jan 2018, 22:06

JosephJZWu wrote:Just an update, thanks to Chief. I went for RMA and they provided me a brand new monitor. Yeah!

Cool beans. Thanks for letting me know!
Head of Blur Busters - BlurBusters.com | TestUFO.com | Follow @BlurBusters on Twitter

       To support Blur Busters:
       • Official List of Best Gaming Monitors
       • List of G-SYNC Monitors
       • List of FreeSync Monitors
       • List of Ultrawide Monitors
User avatar
Chief Blur Buster
Site Admin
 
Posts: 5078
Joined: 05 Dec 2013, 15:44


Return to BENQ/Zowie Tweaking — Strobe Utility / Blur Reduction / DyAc

Who is online

Users browsing this forum: Bing [Bot] and 7 guests