Faint vertical lines in some grey shades : do you see it too ?

[Pierre990429]

Hello all,
I know there have already been topics concerning the G750's screen. I'd just want to know if others are also seeing a pattern of dark vertical lines in some shades of grey or sometimes other dark colors.
It's only visible when you look close to the screen. I have a G750JH (so a 780M) and I am using the stock 311.83 drivers (which are working well otherwise and have never crashed).
I got an AUO matte screen (non-3D).

I tried the 326.80 and 327.23 drivers : with these, the effect seemed different : not really vertical lines, but more a "grid" effect. So I reverted.
Again, it's only visible on some specific colors/shades.
It has, I think, nothing to do with the "other" line problem (horizontal "waves") where people just created a custom refresh rate for the monitor. (for example, I'm at 70 Hz)

Yeah, I have sensitive eyes.

So, is it the screen, the GPU, or the drivers ?

It's a pity I like the screen of my 2005 Dell XPS M170 much more...

Waiting for your feedback.

[hmscott]

Pierre990429 wrote:
Hey, thank for your efforts.
Well, I've hooked an old CRT screen to the 750JH with the VGA connector : as expected, the line patterns don't appear there. So it's obviously the screen (knew it). Things like this are more noticeable on matte screens, I think, because of the AG coating.

Some people are more sensitive to this than others. I even got rid of an Eizo Foris (I know it's a shame) because I couldn't stand the "crystal effect" of the coating. Now I've a Samsung S23A700D (120 Hz) for my actual desktop computer, and it's just perfect. Only bought it because it's GLOSSY. I don't use 3D and I don't use refresh rates over 60 Hz on this monitor.
Luckily, 3D screens are still glossy, because the antiglare coating "steals" a lot of light and good brightness is needed for 3D. They can put characteristics like 100000:1 contrast ratio (ridiculous) or 500-1000 candela/m² or so, but when you SEE the screens, you notice the difference.

To watch DVDs, I still use a CRT monitor (Mitsubishi Diamond Pro 740SB, from 2001 - my old 67 TXV died years ago) with an old desktop computer (PentiumIII-1000, Win98SE, MSI GeforceFX 5900XT AGP, SoundBlaster Live 5.1) and WinDVD4 platinum : old but good 🙂

Pierre990429, too bad the screen isn't working out for you. The laptop is otherwise awesome. Different screen manufacturers are being used for the G750 and some respond better to adjustment.

You say AUO, but what is the full part name for your screen?

Mine is a Chi Mei N173HGE CMO1720 HC9GK_173HGE



Do you have the Windows Desktop Magnification set to the default 125% ? I prefer the non-magnified view and always change the Desktop Magnification to 100% as one of the first things I do when configuring Windows.

[hmscott]

Pierre990429 wrote:
Hey, thank for your efforts.
Well, I've hooked an old CRT screen to the 750JH with the VGA connector : as expected, the line patterns don't appear there. So it's obviously the screen (knew it). Things like this are more noticeable on matte screens, I think, because of the AG coating.

Some people are more sensitive to this than others. I even got rid of an Eizo Foris (I know it's a shame) because I couldn't stand the "crystal effect" of the coating. Now I've a Samsung S23A700D (120 Hz) for my actual desktop computer, and it's just perfect. Only bought it because it's GLOSSY. I don't use 3D and I don't use refresh rates over 60 Hz on this monitor.
Luckily, 3D screens are still glossy, because the antiglare coating "steals" a lot of light and good brightness is needed for 3D. They can put characteristics like 100000:1 contrast ratio (ridiculous) or 500-1000 candela/m² or so, but when you SEE the screens, you notice the difference.

To watch DVDs, I still use a CRT monitor (Mitsubishi Diamond Pro 740SB, from 2001 - my old 67 TXV died years ago) with an old desktop computer (PentiumIII-1000, Win98SE, MSI GeforceFX 5900XT AGP, SoundBlaster Live 5.1) and WinDVD4 platinum : old but good 🙂

Pierre990429, too bad the display isn't working out for you, the laptop is otherwise awesome. Asus is sourcing different manufacturers for the screen, and some are responding better to adjustment than others.

You said it was an AUD screen, what is the full part name/number info?

Mine is a Chi Mei N173HGE CMO1720



Another thing I forgot to mention is that I change the WIndows default desktop magnification from 125% default to 100%, I prefer the non-magnified view. Have you changed the desktop magnification to 100%?

[Pierre990429]

I have an AUO 219D, reference B173HW02 V1.

You're right, for me, it's the only flaw. A screen's "quality" is something very subjective.
Funny, I've seen forums where people complain about the AUO and the Chi-Mei but say that the AUO is the "least bad" of both.
I guess that once you've been "spoiled" by a good glossy screen (sharpness, vibrant colors), you can't go back.

If only I knew how to disassemble the bezel without destroying something by accident... 😞

I really wonder why you can't (it's almost impossible, except in some rare countries, at very specific resellers) find the G750JH with 3D-screen ? does ASUS have problems ?

[Huwbutts]

G750JH, just bought. Faint lines are there; well, actually, they're pretty darn visible, between pixels. Anyone who doesn't see them needs to get their eyes tested, or already has - in which case, they should not be going round saying "derp, looks fine to me".

It's disgusting that ASUS slap such a sub-par screen on such an expensive machine, that is trumped in quality by pretty much any lappy under $1000. I'm going to contact them to ask if they can replace it for me, because from where I'm standing, this is a fault.

Anyone happen to know where I can get a good replacement (preferably glossy) screen?

Also, the fact that the SSD cannot be changed out, mouse buttons have WAY too much travel, clacky keys, terrible speakers, I'm getting some awful buyer's remorse going on over here.

ASUS: Y U NO MAKE LAPTOPS LIEK USED TOO?!

[hmscott]

Huwbutts wrote:
G750JH, just bought. Faint lines are there; well, actually, they're pretty darn visible, between pixels. Anyone who doesn't see them needs to get their eyes tested, or already has - in which case, they should not be going round saying "derp, looks fine to me".

Huwbutts, we are not saying "derp, looks fine to me", we are saying we don't see the lines in our screen images. We have looked.

Noone has posted an image where they see the lines so we can compare.

I have seen screen anomalies before, and I know that just because I see them it doesn't mean someone else is going to see them. I have tried showing people screen issues before, pointing right at the screen, and they don't see them. It can be frustrating.

I have looked closely at the screen, at a lot of images that should show problems, but I don't see any. It could be my screen doesn't show these lines, but yours does.

Please give us a couple of URL's/images and indicate a location on the page to look at where you see the "faint lines between pixels" so we can check on our screens. Please use the Windows Snipping tool / Paint to indicate the area of "lines between pixels"

How close do you need to put your eyes to the screen to see the lines? How far away are your eyes from the screen when the lines stop being visible...?

Here are some screen tests, if you see the lines anywhere, please point out where so we can look on our screens.

This URL is the middle of the test, on a likely test page that will show the problem, if you don't see it there check the other pages in the test, or find a test online that shows the problem so we can check on our screens:

http://www.lagom.nl/lcd-test/gradient.php

This test will show flickering at 60hz, create a custom resolution setting in the Nvidia Control panel and increase refresh to 85-100 hz (highest stable for your LCD) to get rid of flickering. 100hz is stable for my Chi Mei screen.

http://www.lagom.nl/lcd-test/inversion.php

Have you tried any of the fixes that others have found useful? I have summarized a few below, but look around in the forums for solutions that others have found useful.

If you haven't Uninstalled Asus Splendid, uninstall as it has caused screen issues for some.

Change Windows desktop size to 100% from Windows 8 default of 125%, magnification can put color anomalies into color regions. Windows Control Panel ==> Display

Update Nvidia driver to latest 331.40 Beta - some say older versions have lines in color regions, updating changed distortion to something more/less pleasing.

Adjust color balance either by hand, or get/make an ICC profile tuned for your screen, if you have a Chi Mei or Samsung, the 6500k/7500k profiles here work great.
http://rog.asus.com/forum/showthread.php?36153-Personal-Color-Profile-for-the-Chi-Mei-173HGE&p=29809...

There are screen replacement articles sprinkled throughout ROG. For some the screens aren't the best, and so they replace them - you need to remove 17 screws from the G750 laptop, pop the screen off the laptop, and then pry it open - needless to say it is probably best to find a service that will do the screen replacement for you.

What do you mean by the SSD cannot be changed out? What is stopping you?

You can remove the HD or replace the mSata SSD's. HD"s are glitchy, slow, and generate heat/noise, I removed mine.

You can replace the msata drives with larger/faster mSata drives, like I did on another laptop. You will need to image the original SSD config and restore it to the new pairing of mSata drives.

[Darnassus]

I tried 90hz on screen in NVidia.. it didn't work.

Tried 100hz, didn't work..

Tried 120hz, pushed too far, as the screen went rainbow at the bottom.

Chi Mei.

If you have the feint lines during blacks, you CAN ignore it... infact, you can NOT see it, by having your eyes further than 2 feet from the screen. The lines then just.. meld into the picture.

[Pierre990429]

Yeah, I don't understand it either. The lines are SO obvious.

I already bought a LG glossy screen (LP173WF1 TL C1) , just want to know how to open the bezel without destroying it : I removed the 4 screws at the corners, but then what ?

Yesterday I managed to restore my Dell M1710 by changing the (fried) graphics card : I found a Dell refurbished Geforce Go 7900 GTX, and it works. Wonderful.
(I found a great video : "How to Replace the GPU in a Dell XPS M1710" , it helped a lot)
The M1710 glossy screen is a LG-Philips LP171WU1 one, it's really GREAT, (and no need to do a "trick refresh rate" over 60 Hz) that's why I bought a LG screen for the G750. I just want to install it....................

[hmscott]

Pierre990429 wrote:
Yeah, I don't understand it either. The lines are SO obvious.
I already bought a LG glossy screen (LP173WF1 TL C1) , just want to know how to open the bezel without destroying it : I removed the 4 screws at the corners, but then what ?
Yesterday I managed to restore my Dell M1710 by changing the (fried) graphics card : I found a Dell refurbished Geforce Go 7900 GTX, and it works. Wonderful.
(I found a great video : "How to Replace the GPU in a Dell XPS M1710" , it helped a lot)
The M1710 glossy screen is a LG-Philips LP171WU1 one, it's really GREAT, (and no need to do a "trick refresh rate" over 60 Hz) that's why I bought a LG screen for the G750. I just want to install it....................

Pierre990429, we never thought to exchange images/url's to compare on our screens what you are seeing with what we are seeing. Please post some URL's / screens / images with annotation so we can compare on our screens.

Someone on ROG must have used a screen replacement service that they can recommend. I have used laptop repair places locally to replace damaged screens, and it isn't such a big step to ask them to swap a good screen with a better screen - they may even credit you the value of the old screen.

Googling around I found these places, but I haven't personally used them - there are likely others in your locale:

http://www.screentekinc.com/Asus-laptops-lcd-screens.shtml

http://www.tdcomponents.com/shop/tdc_search_display.php

[Frido]

Someone asked earlier. I own a G750JX with the 3D screen, I did notice "lines" in some grey gradient areas but it's hard to replicate, I can't seem to find the exact pattern. Pretty sure I saw it in youtube or something. This happened to me both at 60hz and 120hz.
I have recently updated the nVidia drivers to the latest so I'll have to see if I can find it again.
At any case, while I am annoyed by such things for me , I encounter it very rarely, so it's not a big deal. If someone faces this issue daily because it's on their program or or favourite website, I could see why this would drive them nuts.

Edit: I tried the tests above me like inversion and they are fine, for example.

[Pierre990429]

HMScott, I really appreciate how you try to help.
I may sound bitter, but as a matter of fact I'm disappointed by this surprising flaw in an otherwise perfect laptop.

Ok. I have a French Windows 8 G750JH, with Geforce 780M. Using the 311.83 stock drivers. I have an AUO screen (60 Hz, matte, non-3D).

Take this link : http://forums.bethsoft.com/forum/180-pc/

Here is a detail of a screenshot :



On the Asus G750, I can see the lines. On the Dell M1710, it's ok.

Now, here are photographies of my screen, at different distances :











This precise page is a very good example. I assume you can see the vertical lines in the last images.
If you look closely, you can already spot them in the second image. It's rather hard to photography (and the light wasn't optimal), but it's really obvious when you are sitting in front of the screen.
I am typing this with my Dell M1710 (LG truelife WUXGA 1920*1200, 60 Hz, glossy) , and I only see black and different shades of grey (in the Bethsoft link, of course. The screen photographies show the flaw) . No lines. No pattern whatsoever.

I tried to "upgrade" the driver (326.80), but the pattern was only "modified" : not sure the lines were really gone, but instead, there were little "spots" in grey areas.


HuwButts, please tell us which screen you got and which drivers you are using (I assume the 311.83 ones).

I think Asus shipped Chi Mei in the USA and mostly AUO in Europe, but I could be wrong.

Frido, this happens with 3D screens too ??? (and Geforce 770M) Could you check, please ?

Remember : this page is a good example : http://forums.bethsoft.com/forum/180-pc/