Asus VG248QE, VG278HE & HR, BenQ XL270T checkerboard-pattern in 3D-mode (no FullHD per Frame)
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Thanks for your confirmation. With my second VG248QE I had the impression that the scanline issue is slightly better, but I noticed the checkerboard issue instead for moving objects. This stuff drives me bonkers... Have you tried one of the icc profiles for this monitor floating around the web? They are supposed to improve the colors, but to me it looked like it's also making the patterns worse.
Thanks for your confirmation. With my second VG248QE I had the impression that the scanline issue is slightly better, but I noticed the checkerboard issue instead for moving objects. This stuff drives me bonkers...

Have you tried one of the icc profiles for this monitor floating around the web? They are supposed to improve the colors, but to me it looked like it's also making the patterns worse.

#91
Posted 08/07/2013 08:15 AM   
[quote="Pirateguybrush"]Here's the thing that strikes me as strange. Change your resolution to 540p, or even 720p. You immediately notice a huge step down in image quality (in 2d or 3d). Now change it back to 1080p, and look at one eye's image in a 3d game. It doesn't display nearly the same kind of drop in quality. So I don't think we're really getting an effective halving of image quality here.[/quote] Yes, I think your observation is correct. But be aware, reducing your monitor resolution to something lower than the native resolution, forces your monitor to interlace the pixels in order to fill the whole screen. This results in a more blurred and fuzzy image depending on your monitor's interlacing ability. In checkerboard the pixels are neither stretched or squeezed, it is just only every other pixel is activated. Hence I think the image quality of checkerboard-patterned 3D image is quite acceptable and cannot imho be compared to 720p or 540p. However, I strongly believe that a checkerboard-patterned 3D image does not provide 1920 * 1080 pixel. [b]@SanityIsOverrated:[/b] Thank you for the input about the C't magazine. I already thought about writing them, but then I thought 3D Gaming Monitors may not be there field of interest. Nevertheless, I will have a look at the section of customer service disasters and decide afterwards. Due to your findings, that the VG248QE is also affected by the checkerboard-pattern I am editing the title (again). Furthermore, I will update my first post and noun all monitors which are known to have a checkerboard-pattern. PS: [b]@SanityIsOverrated[/b], I am also frustrated about the vast impact of the problem.
Pirateguybrush said:Here's the thing that strikes me as strange. Change your resolution to 540p, or even 720p. You immediately notice a huge step down in image quality (in 2d or 3d). Now change it back to 1080p, and look at one eye's image in a 3d game. It doesn't display nearly the same kind of drop in quality. So I don't think we're really getting an effective halving of image quality here.

Yes, I think your observation is correct. But be aware, reducing your monitor resolution to something lower than the native resolution, forces your monitor to interlace the pixels in order to fill the whole screen. This results in a more blurred and fuzzy image depending on your monitor's interlacing ability.
In checkerboard the pixels are neither stretched or squeezed, it is just only every other pixel is activated. Hence I think the image quality of checkerboard-patterned 3D image is quite acceptable and cannot imho be compared to 720p or 540p. However, I strongly believe that a checkerboard-patterned 3D image does not provide 1920 * 1080 pixel.

@SanityIsOverrated: Thank you for the input about the C't magazine. I already thought about writing them, but then I thought 3D Gaming Monitors may not be there field of interest. Nevertheless, I will have a look at the section of customer service disasters and decide afterwards.

Due to your findings, that the VG248QE is also affected by the checkerboard-pattern I am editing the title (again). Furthermore, I will update my first post and noun all monitors which are known to have a checkerboard-pattern.

PS: @SanityIsOverrated, I am also frustrated about the vast impact of the problem.

Operating System: Windows 7 Professional 64-bit
Processor: Intel i7-4770k
Memory: 16GB with 4x4GB Corsair Vengeance
Graphics: MSI GeForce GTX 770 Twin Frozr
Mainboard: Asus Z87-Plus

#92
Posted 08/07/2013 08:32 AM   
Okay. I updated my first post and added a list of all malfunctioning monitors we identified so far. It is (unfortunately) a huge list. Please notify me, if I missed a monitor.
Okay. I updated my first post and added a list of all malfunctioning monitors we identified so far. It is (unfortunately) a huge list. Please notify me, if I missed a monitor.

Operating System: Windows 7 Professional 64-bit
Processor: Intel i7-4770k
Memory: 16GB with 4x4GB Corsair Vengeance
Graphics: MSI GeForce GTX 770 Twin Frozr
Mainboard: Asus Z87-Plus

#93
Posted 08/07/2013 08:56 AM   
@FlyingRocket you are not in a good position to determine this but do you include VG278H in that group? I was earlier hoping for some less artificial test images to compare H and HE with to determine how big the difference is between the monitors as I have clearly reproduced a checkerboard pattern on my screen. The task was resently put on hold when my motherboard fried yesterday but after some quick replacement I'm back in business.
@FlyingRocket you are not in a good position to determine this but do you include VG278H in that group? I was earlier hoping for some less artificial test images to compare H and HE with to determine how big the difference is between the monitors as I have clearly reproduced a checkerboard pattern on my screen.

The task was resently put on hold when my motherboard fried yesterday but after some quick replacement I'm back in business.

Thanks to everybody using my assembler it warms my heart.
To have a critical piece of code that everyone can enjoy!
What more can you ask for?

donations: ulfjalmbrant@hotmail.com

#94
Posted 08/07/2013 09:02 AM   
Sorry, Flugan, I missed your monitor. The VG278H of course belongs to the list. I will fix it (as soon as I can edit my first post)!
Sorry, Flugan, I missed your monitor. The VG278H of course belongs to the list. I will fix it (as soon as I can edit my first post)!

Operating System: Windows 7 Professional 64-bit
Processor: Intel i7-4770k
Memory: 16GB with 4x4GB Corsair Vengeance
Graphics: MSI GeForce GTX 770 Twin Frozr
Mainboard: Asus Z87-Plus

#95
Posted 08/07/2013 09:03 AM   
[quote="SanityIsOverrated"]Thanks for your confirmation. With my second VG248QE I had the impression that the scanline issue is slightly better, but I noticed the checkerboard issue instead for moving objects. This stuff drives me bonkers... Have you tried one of the icc profiles for this monitor floating around the web? They are supposed to improve the colors, but to me it looked like it's also making the patterns worse.[/quote] I'm using the ICC profile provided by asus. There are a couple on other websites that I didn't like as much. I also dropped my brightness in the Nvidia control panel to 25% before adjusting the settings on my montior. When I get home I'll post my exact settings. As stated, I only see the pattern in 3D mode. If I control+T for lightboost in 2D, the issue disappears even on fast moving objects.
SanityIsOverrated said:Thanks for your confirmation. With my second VG248QE I had the impression that the scanline issue is slightly better, but I noticed the checkerboard issue instead for moving objects. This stuff drives me bonkers...

Have you tried one of the icc profiles for this monitor floating around the web? They are supposed to improve the colors, but to me it looked like it's also making the patterns worse.


I'm using the ICC profile provided by asus. There are a couple on other websites that I didn't like as much. I also dropped my brightness in the Nvidia control panel to 25% before adjusting the settings on my montior. When I get home I'll post my exact settings. As stated, I only see the pattern in 3D mode. If I control+T for lightboost in 2D, the issue disappears even on fast moving objects.

Gigabyte Gaming 5 Z170X, i7-6700K @ 4.4ghz, Asus GTX 2080 ti Strix OC , 16gb DDR4 Corsair Vengence 2666, LG 60uh8500 and 49ub8500 passive 4K 3D EDID, Dell S2716DG.

#96
Posted 08/07/2013 01:39 PM   
Thought I should share the result of my VG278H during a recent test: [IMG]http://imageshack.us/a/img843/6271/6zg8.png[/IMG] [IMG]http://imageshack.us/a/img541/4630/hm2q.png[/IMG] It's not perfect but in my oppinion not really noticable in practice.
Thought I should share the result of my VG278H during a recent test:

Image
Image
It's not perfect but in my oppinion not really noticable in practice.

Thanks to everybody using my assembler it warms my heart.
To have a critical piece of code that everyone can enjoy!
What more can you ask for?

donations: ulfjalmbrant@hotmail.com

#97
Posted 08/07/2013 03:10 PM   
[quote="CeeJayII"][quote="SanityIsOverrated"]Thanks for your confirmation. With my second VG248QE I had the impression that the scanline issue is slightly better, but I noticed the checkerboard issue instead for moving objects. This stuff drives me bonkers... Have you tried one of the icc profiles for this monitor floating around the web? They are supposed to improve the colors, but to me it looked like it's also making the patterns worse.[/quote] I'm using the ICC profile provided by asus. There are a couple on other websites that I didn't like as much. I also dropped my brightness in the Nvidia control panel to 25% before adjusting the settings on my montior. When I get home I'll post my exact settings. As stated, I only see the pattern in 3D mode. If I control+T for lightboost in 2D, the issue disappears even on fast moving objects. [/quote] Indeed. I was under the impression yesterday that the ICC profile had an effect, but it was more likely due to me fiddling with all settings and imagining things. For the fact book, what I gather: Scanline pattern: - occurs stereoscopic 3D AND lightboost in 2D - for moving and still images - only part of the screen is affected - happens on the ASUS VG248QE - some people have it, some not Checkerboard pattern or pixel inversion pattern: - occurs for stereoscopic 3D only - moving objects - on every part of the screen - happens on every monitor mentioned in the thread title - it's there, face it. This probably means they are not directly related, other than poor quality control and the manufacturers throwing panels with teething problems at the public. Sorry if this has been diverting you. I've written a mail to ASUS regarding the scanline pattern. Let's see what they say.
CeeJayII said:
SanityIsOverrated said:Thanks for your confirmation. With my second VG248QE I had the impression that the scanline issue is slightly better, but I noticed the checkerboard issue instead for moving objects. This stuff drives me bonkers...

Have you tried one of the icc profiles for this monitor floating around the web? They are supposed to improve the colors, but to me it looked like it's also making the patterns worse.


I'm using the ICC profile provided by asus. There are a couple on other websites that I didn't like as much. I also dropped my brightness in the Nvidia control panel to 25% before adjusting the settings on my montior. When I get home I'll post my exact settings. As stated, I only see the pattern in 3D mode. If I control+T for lightboost in 2D, the issue disappears even on fast moving objects.


Indeed. I was under the impression yesterday that the ICC profile had an effect, but it was more likely due to me fiddling with all settings and imagining things.

For the fact book, what I gather:
Scanline pattern:
- occurs stereoscopic 3D AND lightboost in 2D
- for moving and still images
- only part of the screen is affected
- happens on the ASUS VG248QE
- some people have it, some not

Checkerboard pattern or pixel inversion pattern:
- occurs for stereoscopic 3D only
- moving objects
- on every part of the screen
- happens on every monitor mentioned in the thread title
- it's there, face it.

This probably means they are not directly related, other than poor quality control and the manufacturers throwing panels with teething problems at the public. Sorry if this has been diverting you.

I've written a mail to ASUS regarding the scanline pattern. Let's see what they say.

#98
Posted 08/07/2013 06:51 PM   
quincunx, jittered, viewport, render target, sub-sampling, super sampling = Dynamic Resolution Rendering = Checkerboard effect??????? I'm reading this article half asleep thinking is this what's happening? Anyways, it's a good read if nothing elsde. I'll have to revisit it tomorrow after some sleep tonight. http://software.intel.com/en-us/articles/dynamic-resolution-rendering-article/
quincunx, jittered, viewport, render target, sub-sampling, super sampling = Dynamic Resolution Rendering = Checkerboard effect???????

I'm reading this article half asleep thinking is this what's happening?

Anyways, it's a good read if nothing elsde. I'll have to revisit it tomorrow after some sleep tonight.


http://software.intel.com/en-us/articles/dynamic-resolution-rendering-article/

#99
Posted 08/11/2013 01:40 AM   
After being shown the door at Asus support after month of discussion claiming either the effect coulsd not be reproduced or if so there would be nothing wrong I can onlay strongly recommend everybody to step on Asus' (BenQ or who evers) support toes hard. Mail them and forward them to this and every thread the same time. They play hide and seek and will continue to push the old crap if the word does not spread and they don't not acknowledge the community is well aware. This effect is distracting, annoying, and unnecessary as I know from my Samsung S27A750D (so D-Man it's not engine or driver related bot the monitor itself) It's a crying shame that the superior (is it still? Well, at least the most popular) 3D technology for gaming is flawed by subpar monitors...
After being shown the door at Asus support after month of discussion claiming either the effect coulsd not be reproduced or if so there would be nothing wrong I can onlay strongly recommend everybody to step on Asus' (BenQ or who evers) support toes hard. Mail them and forward them to this and every thread the same time.

They play hide and seek and will continue to push the old crap if the word does not spread and they don't not acknowledge the community is well aware.

This effect is distracting, annoying, and unnecessary as I know from my Samsung S27A750D (so D-Man it's not engine or driver related bot the monitor itself)

It's a crying shame that the superior (is it still? Well, at least the most popular) 3D technology for gaming is flawed by subpar monitors...

Posted 08/12/2013 11:56 AM   
So what 120hz 3D vision compatible monitors don't have this effect? Is the Samsung work around difficult? Is the effect really unnoticeable on the VG278H? I'm giving up on ever resolving the problem on my VG248QE, I'm ready to sell it and get a monitor that works correctly.
So what 120hz 3D vision compatible monitors don't have this effect? Is the Samsung work around difficult? Is the effect really unnoticeable on the VG278H? I'm giving up on ever resolving the problem on my VG248QE, I'm ready to sell it and get a monitor that works correctly.

Gigabyte Gaming 5 Z170X, i7-6700K @ 4.4ghz, Asus GTX 2080 ti Strix OC , 16gb DDR4 Corsair Vengence 2666, LG 60uh8500 and 49ub8500 passive 4K 3D EDID, Dell S2716DG.

Posted 08/14/2013 01:38 AM   
I can see it on my VG278H, but I have to really look for it. But it's definitely there, and if it's a problem for you on a 24 inch screen, I'd imagine it could be even more noticeable on a larger screen at the same resolution.
I can see it on my VG278H, but I have to really look for it. But it's definitely there, and if it's a problem for you on a 24 inch screen, I'd imagine it could be even more noticeable on a larger screen at the same resolution.

Posted 08/14/2013 01:48 AM   
Just something to note, I think this is needed for the polarization of the glasses to work. Sometimes when alt-tabbing the screen bugs out and doesn't get rid of the screen door effect, and one of the lenses blacks out. I noticed that the mouse is the only thing on the screen that isn't covered by this 'mesh', and guess what, if you tip the glasses sideways (messing up the polarization) everything on screen but the mouse goes completely black. Also, you are still getting full 1080p. Get up close and keep an eye on individual lines of pixels, flipping 3D on and off shows its still the full resolution. I think you'd notice anyway if it wasn't.
Just something to note, I think this is needed for the polarization of the glasses to work. Sometimes when alt-tabbing the screen bugs out and doesn't get rid of the screen door effect, and one of the lenses blacks out. I noticed that the mouse is the only thing on the screen that isn't covered by this 'mesh', and guess what, if you tip the glasses sideways (messing up the polarization) everything on screen but the mouse goes completely black.

Also, you are still getting full 1080p. Get up close and keep an eye on individual lines of pixels, flipping 3D on and off shows its still the full resolution. I think you'd notice anyway if it wasn't.

Posted 08/14/2013 02:37 AM   
That's an interesting theory, but if that's the case why are there some (seemingly random) areas of the screen that don't get this effect?
That's an interesting theory, but if that's the case why are there some (seemingly random) areas of the screen that don't get this effect?

Posted 08/14/2013 04:19 AM   
I'm not sure, it's everywhere on mine.
I'm not sure, it's everywhere on mine.

Posted 08/14/2013 06:16 AM   
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