Overclock.net › Forums › Components › Monitors and Displays › ACER Predator X34 Owners Club
New Posts  All Forums:Forum Nav:

ACER Predator X34 Owners Club - Page 45

post #441 of 3075
Okay, thanks, Alaindor.

When I get home from work (yup, I'm 'working' right now - LOL!) I'll take some photos of my own, and try to show my scanlines.

Thanks!

EDIT:

I actually have a crappy display here at work, and just now took a photo to see if the anomalies would show up. They didn't.

If you take a photo of your entire monitor, then you're way too far out to see anything. You have to go right in. And honestly, even then it's not working.

Oh well. Thanks anyhow, guys.

EDIT: In order to take a picture of an anomaly on your screen with your phone, then you must place the phone right up against the monitor, so that it's literally one inch away.
Edited by Mikey- - 11/17/15 at 2:51pm
post #442 of 3075
Quote:
Originally Posted by Smokey the Bear View Post

The lines (artifacts) in your pics are definitely the pixels themselves. Rather, its in between them and this stands out in photographs. That becomes pretty obvious when you zoom right in on the picture.

Anyways just a quick response to the idea of interference - I'm currently running two water cooled 980 ti's and have the issue. One possible source of interference for me is my surge protector, so I'm very curious to see mountainlifters results with a new adapter, though I don't expect any miracles.

Honesty, the fact that those with the lines see them more prominently on the same side of the screen than another and in my case not at all on the right side, leads me to believe it is an assembly problem. After all, if this was the result of an aggressive OC, wouldn't it effect the entire panel, and not just one side?


Yeah, I suppose if the lines are one one side of the screen and not the other, I guess you're right...

It seems as though I'm using the exact same model of power brick as Mountainlifter, so unless the adapter units themselves are very different from one another, that doesn't work out either.
post #443 of 3075
Quote:
Originally Posted by Alaindor View Post

Warning: Spoiler! (Click to show)
Unless I'm mistaken... could it be a problem with the photograph itself... your scanlines are even worse than mine. Up in the left hand corner of the monitor. Those horizontal lines. Even I don't have it that bad.

Smokey, these photos are far from perfect. You can clearly see the horizontal lines????? They're up there in the sky. They even run straight into the pillar.

Alaindor, if you could focus in closer on the left side of your monitor, that would be beneficial. It's important to note that your camera needs to be level with the monitor's height and angle.

Angled photos, either horizontally or vertically, will artificially decrease the lines.

Thanks, Aliandor. Rep to you for doing that.

EDIT: Sorry, but there must be a problem with Alaindor's camera shots... not the monitor itself. His monitor can't possibly be that bad. It's got to be the camera shots.

Because look at this one with Vsync off.



I mean, what the hell is that in the upper left part of the monitor? Look just below the Gsync. In between the two pillars. At the sky. That's showing up in all the photographs?


I guess I have some problems to take a good shot, playing with the light... I have a ceiling light in my room which is reflecting on the screen, not as bad as the flash... I can ensure you my human eye sees no interference nor scan lines. How can I take a good picture of a curved screen trying to avoid any artefacts created by the lights? If you have a good way, I'm ready to post new shots (but tomorrow, now I have to go to bed!)

Don't worry about that man, the pictures are fine. You can't hide the space in between pixels, especially in a close up shot.
Quote:
Originally Posted by Alaindor View Post

Yeah, I suppose if the lines are one one side of the screen and not the other, I guess you're right...

It seems as though I'm using the exact same model of power brick as Mountainlifter, so unless the adapter units themselves are very different from one another, that doesn't work out either.

Right, that's a good point... New adapter does seem moot. I assume JC, ford, and Beth all have the same unit as well.
Edited by Smokey the Bear - 11/17/15 at 2:40pm
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7-4790k ASUS Maximus Formula VII EVGA 980 ti SLI G.skill Ripjaws X 2133Mhz CAS 9 
Hard DriveCoolingCoolingCooling
Samsung 850 EK Supremacy EVO + Nemesis 280  EK FC-Titan X + RX360 D5 Vario + Bitspower Multi-Z 200 V2 
OSMonitorKeyboardPower
Windows 8.1 64bit Predator x34 Ducky Shine 3 TKL MX Brown w/ Red LED EVGA 1000 P2 
CaseMouseMouse PadAudio
Corsair 760T Mionix Naos 7000 Corsair MM200 Soundblaster ZXR 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7-4790k ASUS Maximus Formula VII EVGA 980 ti SLI G.skill Ripjaws X 2133Mhz CAS 9 
Hard DriveCoolingCoolingCooling
Samsung 850 EK Supremacy EVO + Nemesis 280  EK FC-Titan X + RX360 D5 Vario + Bitspower Multi-Z 200 V2 
OSMonitorKeyboardPower
Windows 8.1 64bit Predator x34 Ducky Shine 3 TKL MX Brown w/ Red LED EVGA 1000 P2 
CaseMouseMouse PadAudio
Corsair 760T Mionix Naos 7000 Corsair MM200 Soundblaster ZXR 
  hide details  
Reply
post #444 of 3075
It's time that Acer acknowledged this issue with some kind of statement.

We, the early adopters, are the ones who paid top dollar for this monitor, and we're the ones who are helping to iron out all the issues. Acer needs to treat us like gold. No hardware - especially if it's cutting edge - releases without issue. You NEED early adopters. And yes you need to LISTEN to them.

And then you get special people like Mountainlifter who will go beyond the call of duty to try and solve the problem themselves. I mean, just release a statement acknowledging that your monitors have a scanline issue.

At this point, the silence IS starting to worry me, especially since I have to return this monitor (if I'm going to) really by Friday.
Edited by Mikey- - 11/17/15 at 3:17pm
post #445 of 3075
Quote:
Originally Posted by Mikey- View Post

I'm on the run here (already late for work), so I can't post my part number... but I'll try to do so later.

Here's the thing. NCIX has a return policy of 30 days. After that, I have to deal with Acer. But Acer isn't even acknowledging this issue. I only have 5 days left to return this monitor - my window is closing fast and I'm getting a little nervous here.

As I've written in my posts above, I can eliminate scan lines in every game I own by adjusting the X34's overclock, essentially matching the refresh rate with the average frame rate of whatever game I'm playing. I love this monitor to death. That said, if these scanlines are not the result of an aggressive overclock, but of faulty design or production, then obviously I would be better off returning the monitor regardless of how much I like it. I'm also wondering if maybe the scanlines will become more prominent? Some people are saying they can't get rid of their lines, and that's worrisome. If this issue develops for me, and Acer continues to remain silent, then I'm going to be very angry and very disappointed.

I'm really unhappy right now with Acer's decision to keep quiet about this issue. It seems that this is how companies are proceeding these days. The big software developers do the same thing. They release games that don't work, and then just sit back silently as 'the community' attempts to solve the problem on their own using limited tools.

That guy from Acer... Cory... I'm sorry, but he's useless. He needs to address this issue, and instead he's just keeping quiet. Clearly he's read about the issue, but he's just ignoring it. I'm very frustrated with him.

Mountainlifter, I'd like to hear your thoughts about returning the monitor. I believe that you and I have exactly the same issue, and you clearly have a better understanding of this than I do. Your excellent chart is in harmony with what I'm seeing on my own monitor, so your counsel would be very valuable to me.

Will you be returning your X34?

Here in Singapore, there is no such thing as returning a product within 30 days if you are unsatisfied with it. Only if it is very obviously broken out of the box can we return it to retailers and that too within a couple of days at most. So, here, if you buy a monitor or anything for that matter and you are unhappy with it for some reason the only recourse is to sell it as used on forums that are dedicated for that purpose. You'll see people selling stuff for 90% of the cost price on forums in Sg.

So, why did I buy this monitor? Well, I live about 20 minutes from the Acer repair center and they will come to my residence to pick up the monitor in case of an RMA. So, that combined with 3 years warranty made me go ahead despite knowing full well about scanlines and other issues.

SO, I think you guys in the west are quite privileged consumers, with the ability to return a product even if you just don't like the look of it. If I had that ability, I would just return it towards the end of the return period despite liking this monitor a lot. I would try the asus coming later and return that too if it had problems. I'd just keep doing this till I got one I liked. Hahaha. Seems like the obvious thing to do from where I'm sitting.

Switching the OSD OC setting on a per game basis is a great workaround. But for me it is a hassle since this hour I might be playing a single player game and the next hour I'll be in battlefield 4 which I play a lot. Even just in BF4, different maps behave differently in terms of Fps fluctuations.

My monitor mfg date is OCT and I haven't seen the wake from sleep as of now. No other problems whatsoever except scanlines. And even there the only concern is that the issue might degrade. Either that or I become an expert at seeing the lines and imagine the issue is becoming worse. I hope acer doesn't go silent on this issue. If they do, then I hope the issue degrades to the point where the service center people can see it prominently and they are forced to replace the monitor.
Quote:
Originally Posted by Alaindor View Post

No scanlines. This is my adapter, plugged in behind a sine wave form UPS, mains is 230 V 50 Hz.
Warning: Spoiler! (Click to show)

Thanks for this picture. The adapter manufacturer is the same as mine. Delta electronics advertises and sells adapters with ripple as high as 380mVpp. How this is acceptable in 2015 is beyond me. But it does mean that all adapters with their sticker on them all consistently have the high ripple as advertised.

Anyways, Alaindor's picture confirms that all our adapters are the same and hence cannot be the cause of the scanlines. I was going to buy a 50$ adapter today and test it out but I don't see the point after seeing this sticker. I was hoping to see a different manufacturer on Alaindor's adapter. Probably, the monitor electronics have good voltage regulators on the pcb to regulate the voltage to well below the ripple drop.

Anyways, it was a fun exercise following this possibility to the end. I got to learn and brush up on a lot of my undergraduate electronics.

Now, it must mean the scanlines are an internal signalling issue which only acer can detect and fix now (Got to resist opening up the thing). I think we've given them ample description of symptoms. My best guess now is the TCON board not being tuned properly.

EDIT: Alaindor, here is the best picture I have of my scanlines http://i.imgur.com/QudiCtm.jpg I see nothing like this on the pics you posted. Your monitor is clean.
Edited by Mountainlifter - 11/17/15 at 8:23pm
post #446 of 3075
Here's why your camera can easily lie.

These are screenshots of my monitor overclocked at 100Hz with Gsync enabled and my frame limiter set to 31. Do you see scanlines? My monitor appears the same as Alaindor's, which was described above as being perfect.





But if you know EXACTLY what to look for then you CAN show the scanlines... but it's not easy to do. Your camera has to be positioned perfectly, and you have to know what the scan lines actually look like.



Just look at the black area. The horizontal lines are pretty hideous. That said, I would never actually run a game like this. I'm going out of my way to produce those lines.
Edited by Mikey- - 11/17/15 at 8:18pm
post #447 of 3075
Great point Mikey-.

If Alaindor can help us with a close up shot like yours (w scanlines) then I'll run out to get a new adapter biggrin.gif

EDIT:
The pics posted by user fragmachine are quite good at showing the scanlines
http://community.acer.com/t5/Predator-Discussions/MULTIPLE-Problems-with-New-X34/m-p/393568/highlight/true#M1483

The two imgur images on the first post here also do a great job of photographing the problem
http://community.acer.com/t5/Predator-Discussions/Predator-X34-OC-amp-GSYNC-Scanline-problem/m-p/393009#U393009

Select the links with the mouse and hit 'go to'. The links don't seem to work otherwise.
Edited by Mountainlifter - 11/17/15 at 8:34pm
post #448 of 3075
Quote:
Originally Posted by Mountainlifter View Post

Great point Mikey-.

If Alaindor can help us with a close up shot like yours (w scanlines) then there I'll run out to get a new adapter biggrin.gif

Even putting the camera right up to the monitor wasn't good enough - I had to tilt my phone to the perfect angle, and I only got the shot because I knew exactly what I was looking for.

All those screenshots that people took from afar - even from a foot or two away - are completely useless. Those shots simply don't show the lines.

Thanks to everyone who took the time to post screenshots. I don't like being critical of people's personal screenshots, but this issue is too serious for me to avoid being critical just to spare people's feelings. Again, thanks to everyone for contributing.
post #449 of 3075
P1120189.JPG


My best guess on the scan line issue is how the G-Sync module is packaged on this PCB chassis.

In the above photo, you have the LED backlight power leads (two curved black wires reaching bottom corners), the left white ribbon cable is the OSD control board, the tan ribbon cable running those silly lip LED's, red/black wires running the crappy speaker (black box at bottom), the DC voltage input from power supply in the center just below the three input capacitors. Under that speaker will be the panel LVDS/LCD flex screen ribbon cables.

Since the scan lines decrease as the G-Sync operating frequency increases, at lower frequencies there is some interference between components talking to one another or within close proximity to one another. I am almost positive it will require a hardware fix, whether it's as simple as putting a choke on there or a ferrite core, new filter inductor, isolation boundary wasn't designed right or something similar. Nothing firmware could fix.
Zybane
(20 items)
 
  
CPUMotherboardGraphicsRAM
8700K @ 5.2 GHz ASUS ROG Strix Z370-I Titan V @ 1942 MHz G.Skill TridentZ 16GB 3500 MHz CL14 1T 
Hard DriveOSMonitorKeyboard
Samsung 960 Pro - 1TB Windows 10 Pro Acer XR382CQK 38" - 3840x1600 - 76 Hz Wooting One 
PowerMouseAudioAudio
Corsair AX1500i 1500W Titanium Logitech G403 Denon AVR-X7200WA Elac BS 312 Speakers 
AudioAudioAudioOther
MrSpeakers ÆON Headphones Velodyne MiniVee Subwoofer Buttkicker LFE Razer Orbweaver Stealth Chroma 
  hide details  
Reply
Zybane
(20 items)
 
  
CPUMotherboardGraphicsRAM
8700K @ 5.2 GHz ASUS ROG Strix Z370-I Titan V @ 1942 MHz G.Skill TridentZ 16GB 3500 MHz CL14 1T 
Hard DriveOSMonitorKeyboard
Samsung 960 Pro - 1TB Windows 10 Pro Acer XR382CQK 38" - 3840x1600 - 76 Hz Wooting One 
PowerMouseAudioAudio
Corsair AX1500i 1500W Titanium Logitech G403 Denon AVR-X7200WA Elac BS 312 Speakers 
AudioAudioAudioOther
MrSpeakers ÆON Headphones Velodyne MiniVee Subwoofer Buttkicker LFE Razer Orbweaver Stealth Chroma 
  hide details  
Reply
post #450 of 3075
Quote:
Originally Posted by CallsignVega View Post

P1120189.JPG


My best guess on the scan line issue is how the G-Sync module is packaged on this PCB chassis.

In the above photo, you have the LED backlight power leads (two curved black wires reaching bottom corners), the left white ribbon cable is the OSD control board, the tan ribbon cable running those silly lip LED's, red/black wires running the crappy speaker (black box at bottom), the DC voltage input from power supply in the center just below the three input capacitors. Under that speaker will be the panel LVDS/LCD flex screen ribbon cables.

Since the scan lines decrease as the G-Sync operating frequency increases, at lower frequencies there is some interference between components talking to one another or within close proximity to one another. I am almost positive it will require a hardware fix, whether it's as simple as putting a choke on there or a ferrite core, new filter inductor, isolation boundary wasn't designed right or something similar. Nothing firmware could fix.

You're another guy I trust here.

So do you have this panel? (Sorry, but I've lost track of who owns what, and who has which problems). Will you be taking your monitor back?

I don't know what to do. I've really only got until Thursday night to decide. The thing is, there's not one game that I can't eliminate the scanlines on by re-clocking the monitor. Not one. And for me this is purely a gaming monitor.

Apart from this one issue, the monitor is perfect. In-game, I don't even think about the scanline issue. I'm pretty much blown away by the monitor. It just feels bad knowing this issue exits. Maybe I'm just being an idiot.

(It's seriously great having you guys here. I just wish that Acer was as good as you guys are.)
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › ACER Predator X34 Owners Club