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]

Stare at this for 20 seconds, then look away, and back at the "grid effect" you thought you saw... still see it?

[hmscott]

Uninstall Asus Splendid software, reboot.

Use the Nvidia Control Panel and create a Custom Resolution of 1920x1080 at 100hz (or 85hz, as some have said works to get rid of the lines).

Those are the only tricks that have worked for most people. Please let us know how it worked for you. I have the Chi Mei N173HGE and removing Asus Splendid was enough to bring clarity to the LCD for me. But, I like the smoothness of the image at 100hz.

[TekNiko]

What version of Nvidia drivers do you have installed? I used to have faint vertical lines on dark shades of gray but they disappeared after updating nvidia drivers.

[Pierre990429]

Hello,

thanks for your answer.

I'm in France, so I'm at work at this time. I'll try your suggestions later.
As I said, I use the 311.83 drivers. I already got rid of Asus Splendid.
I tried the custom refresh rate of 70 Hz, but maybe it's not enough? (because you speak of 85 or 100).

Cheers,

Pierre

[rawpure]

Yes almost evertone have those lines, its a software issue because with 314 drivers the lines turn into small squares instead, bit more acceptible to look at imo 😛

Also use 67hz or more to get rid of low light refresh "waterfall" effect, its a new machine and i dont doubt some updates will solve these issues^^

[Pierre990429]

Yes, playing with the refresh rate gets rid of the eye-straining waves. (starting at ~ 70 Hz or so)
But the vertical lines patterns never disappear.
The other drivers, as you say, Rawpure, transform the pattern into "squares". Unfortunately, I found this one being worse than the lines : it looked like a "dithering effect" and was sometimes almost as if the GPU worked only in 16 bit colors (remember the 3Dfx Voodoo cards?).
That's why I have gone back to 311.83

It would be interesting to know if the 3D screen shows the same : then we would have proof that it's GPU and/or driver related.

[hmscott]

Pierre990429 wrote:
Yes, playing with the refresh rate gets rid of the eye-straining waves. (starting at ~ 70 Hz or so)
But the vertical lines patterns never disappear.
The other drivers, as you say, Rawpure, transform the pattern into "squares". Unfortunately, I found this one being worse than the lines : it looked like a "dithering effect" and was sometimes almost as if the GPU worked only in 16 bit colors (remember the 3Dfx Voodoo cards?).
That's why I have gone back to 311.83
It would be interesting to know if the 3D screen shows the same : then we would have proof that it's GPU and/or driver related.

What you describe made me realize you may only need to do LCD / Display calibration. Part of the Calibration routine is to change contrast / gamma settings that affect "seeing things" in grey areas - you adjust to remove them.

http://windows.microsoft.com/en-us/windows7/calibrate-your-display <== Instructions for Win7, but gets you there in Win8

I don't see lines/hash/cubes in grey / dark areas...except in places I assume I am supposed to see them, like in the scroll area of my Firefox theme.



There are also Nvidia settings that you can use to adjust the display: I turned of Dynamic Contrast, but it may work for you.

I have the gamma/color settings set to defaults right now, doing other things, let us know what worked for you if you choose to adjust to try to get out the lines/hash/cubes.





I also noticed that AIDA64 has an in depth Monitor Diagnostics feature, under Tools:



There is also a newer 331.40 Notebook Beta Nvidia driver set, which I have been running under heavy usage / load, without problems.
http://www.geforce.com/drivers/results/67382

If you hook up an external monitor, and do see the pattern in the external monitor, it would point to the card / driver and not the laptop LCD.

[Pierre990429]

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 🙂

[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 🙂

Ah, that helps put the G750 matte screen sensitivity into context 🙂

For me I go the opposite way, I am sensitive to small detail, but choose to balance my vision to change it's focus onto the content rather than the delivery system.

Knowing that all the matte displays, in the world, have some kind of occlusion to diffract the light, I know that some kind of veil over total clarity is going to exist, so I accept that and move focus to the content, and be happy.

Looking closely isn't needed to view the content, and it won't make me happy to "see" the occlusion, so I don't do it 🙂

It used to be tougher to get past the diffraction, like when I had to get used to the fine particle diffraction on my Sony 24" CRT Sony GDM-FW900 - I loved the fine detail in text and images, but the matte effect - fine as it was - kept me from getting up close to the screen.

So I pushed the monitor out to arms length, and at that distance the diffraction veil wasn't objectionable.

I also don't notice the matte effect on the G750 when up close using the keyboard, because I am still at arms length from the screen - I have no reason to push my face into the screen to focus on the matte surface effect.

To me the color balance on the Chi Mei display looks fine so watching Blu-ray movies works great.

Trying out the ArcSoft http://www.arcsoft.com/totalmedia-theatre/

Watched "After Earth" last night and all the out door nature shots had a natural color balance. The indoor dark shots had unbroken detail in the black and grey areas.

I hope you find a way to enjoy your G750 display 🙂