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Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 05:59
by _zebracrossing666
RealNC wrote:
21 Feb 2025, 05:50
_zebracrossing666 wrote:
21 Feb 2025, 04:44
How does it prevent VRR from working if it's removing screen tearing from Cyberpunk? There was noticeable tearing on neon lights when moving the camera, but now it is smooth. So it's not subjective. Unless that's due to me also enabling Vsync in Nvidia app along with Gsync, but the latency was good and my fps around 80-90, far below 240hz(if the method is having zero effect, and I thought Vsync only prevented tearing at fps above max refresh rate?)
It prevents VRR because there's judder when FPS does not match Hz. Also, it has duplicate frames. See first post in this thread about the borked 180Hz mode. If you apply the VT/pixel clock tweak to any other mode so that VRR flicker "goes away," you end up with the same problem the 180Hz mode has.
Okay, well if there is indeed judder, for me it's certainly smoother than playing with VRR off and no sync at all. The screen tearing on Cyberpunk made moving the camera around feel terrible, as it was small screen tears but very noticeable when moving the camera slowly and around objects with a lot of light. Vsync by itself adds a ton of latency and judder and should be noticeable, which according to you should be the only sync in play here, yet latency feels the exact same, and on top of that screen tearing is gone.

So idk which sync is improving all this, I'm so confused as I was playing RDR2 a week ago with just Vsync and no VRR and it felt like crap. Juddery like hell when moving the camera. But I played it yesterday with apparently just Vsync????(with the non-working VRR enabled) and it felt smooth af.

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 06:27
by RealNC
_zebracrossing666 wrote:
21 Feb 2025, 05:59
Okay, well if there is indeed judder, for me it's certainly smoother than playing with VRR off and no sync at all. The screen tearing on Cyberpunk made moving the camera around feel terrible, as it was small screen tears but very noticeable when moving the camera slowly and around objects with a lot of light. Vsync by itself adds a ton of latency and judder and should be noticeable, which according to you should be the only sync in play here, yet latency feels the exact same, and on top of that screen tearing is gone.

So idk which sync is improving all this, I'm so confused as I was playing RDR2 a week ago with just Vsync and no VRR and it felt like crap. Juddery like hell when moving the camera. But I played it yesterday with apparently just Vsync????(with the non-working VRR enabled) and it felt smooth af.
I don't know what exactly you're seeing, but here I can tell there is a difference in motion with working VRR vs broken VRR. Especially visible when there's side scrolling, where the difference becomes quite big. The broken VRR modes are jittery.

Jittery motion is also easier to see when something bright and sharp is moving in front of a dark background. And the faster the motion, the more apparent the jitter becomes.

Another thing to keep in mind is that when there's no VRR flicker, that just means there's no VRR. Gamma response differs between different refresh rates. This is the source of VRR flicker. When the gamma response doesn't change, that means the refresh rate doesn't change. A dynamically changing refresh rate is what VRR is supposed to be doing.

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 06:33
by Shifroval
_zebracrossing666 wrote:
21 Feb 2025, 05:50
And about the EDID primaries, there is almost no black crush for me on Lagom's black level test. I can see square 3 clearly and square 2 if I concentrate on the overall picture. This is with 100 brightness though, which I think it should be to make it fair. Like obv there will be more black crush if you have it at 50 brightness or something. Yes, I can see even square 1 very clearly with the ICC profile, but to me the black levels look raised as square 1 should be barely distinguishable. I'm not an expert either tho, just square 1 blends in more with the black background with EDID.

It's weird your black crush is so much more apparent, maybe this is panel dependent stuff and is slightly better or worse on each monitor?
That's odd. I tried with brightness 100 and uniform brightness off/on and primaries, the most I can see is the second lowest row, square 10. How does this method work for everyone, but not for me? Rtings profile works better if I have higher brightness, but I don't want that.
Maybe you use another profile for the monitor, like racing mode? I use user mode and brightness 25, because my eyes will melt with higher values if I spend half of the day using the monitor. Contrast is 80.
Something is amiss here. Ideally all units should be more or less the same and definitely not exibit such different behavior when using the same settings.

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 07:22
by _zebracrossing666
RealNC wrote:
21 Feb 2025, 06:27
_zebracrossing666 wrote:
21 Feb 2025, 05:59
Okay, well if there is indeed judder, for me it's certainly smoother than playing with VRR off and no sync at all. The screen tearing on Cyberpunk made moving the camera around feel terrible, as it was small screen tears but very noticeable when moving the camera slowly and around objects with a lot of light. Vsync by itself adds a ton of latency and judder and should be noticeable, which according to you should be the only sync in play here, yet latency feels the exact same, and on top of that screen tearing is gone.

So idk which sync is improving all this, I'm so confused as I was playing RDR2 a week ago with just Vsync and no VRR and it felt like crap. Juddery like hell when moving the camera. But I played it yesterday with apparently just Vsync????(with the non-working VRR enabled) and it felt smooth af.
I don't know what exactly you're seeing, but here I can tell there is a difference in motion with working VRR vs broken VRR. Especially visible when there's side scrolling, where the difference becomes quite big. The broken VRR modes are jittery.

Jittery motion is also easier to see when something bright and sharp is moving in front of a dark background. And the faster the motion, the more apparent the jitter becomes.

Another thing to keep in mind is that when there's no VRR flicker, that just means there's no VRR. Gamma response differs between different refresh rates. This is the source of VRR flicker. When the gamma response doesn't change, that means the refresh rate doesn't change. A dynamically changing refresh rate is what VRR is supposed to be doing.
I made a video showing the screen tearing with no VRR no sync at all on Cyberpunk, apologies for the quality, I'm using a low-end phone from 2019. However the screen tearing is visible on the bottom half of the vertical bar of light in the video, at least I can see it, it's like small parts of the light bar are being sliced. Not the usual screen tearing where a giant horizontal line is visible across the screen. After 0:13 is a different video showing the light-bar with broken VRR + Vsync + Low latency mode. Again, probably can't see well, but there is no screen tearing at all with this. I guess it COULD just be Vsync + Low latency mode doing stuff, but I read online that Vsync by itself adds noticeable latency, I presume even with Low latency mode. Yet it actually feels smoother for me

https://www.youtube.com/shorts/INsxIrkRaes

What settings do you use if you still use this monitor btw? I mean strictly in terms of using VRR or not, or any sync.

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 07:33
by _zebracrossing666
Shifroval wrote:
21 Feb 2025, 06:33
_zebracrossing666 wrote:
21 Feb 2025, 05:50
And about the EDID primaries, there is almost no black crush for me on Lagom's black level test. I can see square 3 clearly and square 2 if I concentrate on the overall picture. This is with 100 brightness though, which I think it should be to make it fair. Like obv there will be more black crush if you have it at 50 brightness or something. Yes, I can see even square 1 very clearly with the ICC profile, but to me the black levels look raised as square 1 should be barely distinguishable. I'm not an expert either tho, just square 1 blends in more with the black background with EDID.

It's weird your black crush is so much more apparent, maybe this is panel dependent stuff and is slightly better or worse on each monitor?
That's odd. I tried with brightness 100 and uniform brightness off/on and primaries, the most I can see is the second lowest row, square 10. How does this method work for everyone, but not for me? Rtings profile works better if I have higher brightness, but I don't want that.
Maybe you use another profile for the monitor, like racing mode? I use user mode and brightness 25, because my eyes will melt with higher values if I spend half of the day using the monitor. Contrast is 80.
Something is amiss here. Ideally all units should be more or less the same and definitely not exibit such different behavior when using the same settings.
Here is a photo of my Lagom black level test, I know the camera won't pick it up exactly like eyes see it, but it's roughly the same and square 2 is noticeably visible but also not raised compared to the background. This is on User mode + 100 brightness, even as low as 60 brightness is good enough to see it though.

https://imgur.com/a/VLSg9p1

edit: This is it with ICC profile https://imgur.com/a/Z2jkQn5 square 1 looks like it's raised too much, I'm not 100% sure but I think square 1 should be BARELY noticeable and almost fully blend in with the black background

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 08:08
by Shifroval
_zebracrossing666 wrote:
21 Feb 2025, 07:33
Shifroval wrote:
21 Feb 2025, 06:33
_zebracrossing666 wrote:
21 Feb 2025, 05:50
And about the EDID primaries, there is almost no black crush for me on Lagom's black level test. I can see square 3 clearly and square 2 if I concentrate on the overall picture. This is with 100 brightness though, which I think it should be to make it fair. Like obv there will be more black crush if you have it at 50 brightness or something. Yes, I can see even square 1 very clearly with the ICC profile, but to me the black levels look raised as square 1 should be barely distinguishable. I'm not an expert either tho, just square 1 blends in more with the black background with EDID.

It's weird your black crush is so much more apparent, maybe this is panel dependent stuff and is slightly better or worse on each monitor?
That's odd. I tried with brightness 100 and uniform brightness off/on and primaries, the most I can see is the second lowest row, square 10. How does this method work for everyone, but not for me? Rtings profile works better if I have higher brightness, but I don't want that.
Maybe you use another profile for the monitor, like racing mode? I use user mode and brightness 25, because my eyes will melt with higher values if I spend half of the day using the monitor. Contrast is 80.
Something is amiss here. Ideally all units should be more or less the same and definitely not exibit such different behavior when using the same settings.
Here is a photo of my Lagom black level test, I know the camera won't pick it up exactly like eyes see it, but it's roughly the same and square 2 is noticeably visible but also not raised compared to the background. This is on User mode + 100 brightness, even as low as 60 brightness is good enough to see it though.

https://imgur.com/a/VLSg9p1

edit: This is it with ICC profile https://imgur.com/a/Z2jkQn5 square 1 looks like it's raised too much, I'm not 100% sure but I think square 1 should be BARELY noticeable and almost fully blend in with the black background
Ok, that's even more strange. I can't reproduce the same thing no matter what I do or did in the past. What's left is compare everything I know that can alter the end result.

1. You use display port connection?
2. Do you have a loaded icc profile that shows in windows color management? If you installed a driver from asus, you probably have one. Open it with colorcpl command (win + r then paste the command).
3. Any custom nvidia control panel options? Especially that color reference options, or whatever they're called.
4. 8 bit or 10 bit? I use 12 bit tweak, but I doubt it changes anything.
5. Uh, you have Win 11, right?
6. Have you ran windows hdr calibration app?
7. Do you have dldsr/dsr modes enabled?
8. I also used cru to rise vrr floor value to 70, but that shouldn't affect colors in any way.
9. Just to rule out this as well, hwinfo reports that my unit was manufactured on week 25, year 2024. What does it show for you?
10. You have vrr enabed? In nvidia panel and monitor settings? I assume it based on your discussuon with RealNC, but still better to know for sure.
11. And the question that deserves an award for stupidity, you use sdr mode in windows, right?

Please tell me all your monitor settings, just in case. Like from every tab, if you have something enabled or changed.

For me all that changed when I enable edid primaries are some colors, not the depth of the blacks. I was genuenely surprised when I first tried it to fix black crush like it was suggested in the first post, because it changed almost nothing and I thought I was doing something wrong.

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 08:24
by _zebracrossing666
Shifroval wrote:
21 Feb 2025, 08:08
_zebracrossing666 wrote:
21 Feb 2025, 07:33
Shifroval wrote:
21 Feb 2025, 06:33
_zebracrossing666 wrote:
21 Feb 2025, 05:50
And about the EDID primaries, there is almost no black crush for me on Lagom's black level test. I can see square 3 clearly and square 2 if I concentrate on the overall picture. This is with 100 brightness though, which I think it should be to make it fair. Like obv there will be more black crush if you have it at 50 brightness or something. Yes, I can see even square 1 very clearly with the ICC profile, but to me the black levels look raised as square 1 should be barely distinguishable. I'm not an expert either tho, just square 1 blends in more with the black background with EDID.

It's weird your black crush is so much more apparent, maybe this is panel dependent stuff and is slightly better or worse on each monitor?
That's odd. I tried with brightness 100 and uniform brightness off/on and primaries, the most I can see is the second lowest row, square 10. How does this method work for everyone, but not for me? Rtings profile works better if I have higher brightness, but I don't want that.
Maybe you use another profile for the monitor, like racing mode? I use user mode and brightness 25, because my eyes will melt with higher values if I spend half of the day using the monitor. Contrast is 80.
Something is amiss here. Ideally all units should be more or less the same and definitely not exibit such different behavior when using the same settings.
Here is a photo of my Lagom black level test, I know the camera won't pick it up exactly like eyes see it, but it's roughly the same and square 2 is noticeably visible but also not raised compared to the background. This is on User mode + 100 brightness, even as low as 60 brightness is good enough to see it though.

https://imgur.com/a/VLSg9p1

edit: This is it with ICC profile https://imgur.com/a/Z2jkQn5 square 1 looks like it's raised too much, I'm not 100% sure but I think square 1 should be BARELY noticeable and almost fully blend in with the black background
Ok, that's even more strange. I can't reproduce the same thing no matter what I do or did in the past. What's left is compare everything I know that can alter the end result.

1. You use display port connection?
2. Do you have a loaded icc profile that shows in windows color management? If you installed a driver from asus, you probably have one. Open it with colorcpl command (win + r then paste the command).
3. Any custom nvidia control panel options? Especially that color reference options, or whatever they're called.
4. 8 bit or 10 bit? I use 12 bit tweak, but I doubt it changes anything.
5. Uh, you have Win 11, right?
6. Have you ran windows hdr calibration app?
7. Do you have dldsr/dsr modes enabled?
8. I also used cru to rise vrr floor value to 70, but that shouldn't affect colors in any way.
9. Just to rule out this as well, hwinfo reports that my unit was manufactured on week 25, year 2024. What does it show for you?
10. You have vrr enabed? In nvidia panel and monitor settings? I assume it based on your discussuon with RealNC, but still better to know for sure.
11. And the question that deserves an award for stupidity, you use sdr mode in windows, right?

Please tell me all your monitor settings, just in case. Like from every tab, if you have something enabled or changed.

For me all that changed when I enable edid primaries are some colors, not the depth of the blacks. I was genuenely surprised when I first tried it to fix black crush like it was suggested in the first post, because it changed almost nothing and I thought I was doing something wrong.
1. Yea
2. Just the HDR profile, I did have the Asus profile when I installed the driver but deleted it to avoid double clamp
3. Everything on default in NVCP, I found that messing with Contrast and stuff there caused the HDR calibration app to clip at a lower amount of nits, so instead of 800 it would disappear at like 600
4. 8 bit on SDR so I can use the clamp and 10 bit on HDR
5. Win 11 ye
6. Ye, I use console HDR and it disappeared around 800-850 for me
7. DLDSR enabled at 90% on the smoothness with x1.78 and x2.25
8. I used CRU but just to change the vertical total so VRR stopped flickering, but apparently I have just disabled VRR instead
9. week 35, year 2024 for me
10. Yes, VRR on OSD enabled, Gsync enabled on NVCP and app, along with Vsync + Low latency mode
11. Yes, both photos on IMG site are in SDR, just EDID primaries vs ICC profile


My SDR settings:

VRR - On
Game Plus - Nothing enabled
GameVisual - User mode
Shadow Boost - OFF

Brightness - 40, but 60-100 when I tested Lagom
Uniform Brightness - ON, but I can still see the squares with it on or off
Contrast - 80
Clear Pixel - Off
Vivid Pixel - 60

Display Colour - Wide Gamut
Color Temp - 75-70-77, so yours xD
Saturation - 50
Six axis - DEFAULT
Gamma - 2.0, apparently that is actually 2.15 at 240hz and 2.2 gamma is too high according to RealNC

Screen Saver - Screen Dimming Control ON, Outer Off
Screen Move - Strong
Auto logo - ON

My NVCP settings: https://imgur.com/a/nctcAr0

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 08:25
by WDeranged
RealNC wrote:
21 Feb 2025, 05:50
It prevents VRR because there's judder when FPS does not match Hz. Also, it has duplicate frames. See "Update 2" in the first post of this thread about the borked 180Hz mode. If you apply the VT/pixel clock tweak to any other mode so that VRR flicker "goes away," you end up with the same problem the 180Hz mode has.
This is the conclusion I came to. I also tried creating custom refresh rates. Any deviation from the monitor's default refresh rate results in imperfect frametimes when using gsync.

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 08:56
by Shifroval
_zebracrossing666 wrote:
21 Feb 2025, 08:24
1. Yea
2. Just the HDR profile, I did have the Asus profile when I installed the driver but deleted it to avoid double clamp
3. Everything on default in NVCP, I found that messing with Contrast and stuff there caused the HDR calibration app to clip at a lower amount of nits, so instead of 800 it would disappear at like 600
4. 8 bit on SDR so I can use the clamp and 10 bit on HDR
5. Win 11 ye
6. Ye, I use console HDR and it disappeared around 800-850 for me
7. DLDSR enabled at 90% on the smoothness with x1.78 and x2.25
8. I used CRU but just to change the vertical total so VRR stopped flickering, but apparently I have just disabled VRR instead
9. week 35, year 2024 for me
10. Yes, VRR on OSD enabled, Gsync enabled on NVCP and app, along with Vsync + Low latency mode
11. Yes, both photos on IMG site are in SDR, just EDID primaries vs ICC profile


My SDR settings:

VRR - On
Game Plus - Nothing enabled
GameVisual - User mode
Shadow Boost - OFF

Brightness - 40, but 60-100 when I tested Lagom
Uniform Brightness - ON, but I can still see the squares with it on or off
Contrast - 80
Clear Pixel - Off
Vivid Pixel - 60

Display Colour - Wide Gamut
Color Temp - 75-70-77, so yours xD
Saturation - 50
Six axis - DEFAULT
Gamma - 2.0, apparently that is actually 2.15 at 240hz and 2.2 gamma is too high according to RealNC

Screen Saver - Screen Dimming Control ON, Outer Off
Screen Move - Strong
Auto logo - ON

My NVCP settings: https://imgur.com/a/nctcAr0
Looks good, I have more or less the same settings, the only thing that can really change colors are icc profiles, but you said you have nothing listed there, so...
Set things to the same values as yours and no luck, the highest I can see is square 7 with 100 brightness and gamma 2.0, but that looks horrible and unusable.
Gamma setting is crucial in this, it immediately alleviated the crush by a small margin, but that's hardly a secret. Still 2.0 looks more gray and less vivid with my settings.
I guess my system is cursed, like always. Would be curious to know what's different between our systems or displays, that I can't produce the same result as you. Good thing I use sdr only on the desktop (movies included, unless they're hdr), most of the time I game in hdr, either native or retrofitted with special k to d3d11/12 or dxvk+special k in case of old d3d9 games. In cases where it's not possible (very old ddraw or just finicky games), sdr mode looked ok for the most part.

P.s Huh stumbled upon dldsr bug again. Nvcpl is stuck with my dldsr mode, I can't remove or change it. It's somehow connected to what I did in cru, novideo and dldsr itself. Still it should not affect colors and can be drivers bug/limitation, as I changed cru stuff, nvcpl may not know how to react to that. I mentioned it in this thread last year actually.

Re: Asus XG27AQDMG Discussion

Posted: 21 Feb 2025, 09:22
by _zebracrossing666
Shifroval wrote:
21 Feb 2025, 08:56
_zebracrossing666 wrote:
21 Feb 2025, 08:24
1. Yea


My NVCP settings: https://imgur.com/a/nctcAr0
Looks good, I have more or less the same settings, the only thing that can really change colors are icc profiles, but you said you have nothing listed there, so...
Set things to the same values as yours and no luck, the highest I can see is square 7 with 100 brightness and gamma 2.0, but that looks horrible and unusable.
Gamma setting is crucial in this, it immediately alleviated the crush by a small margin, but that's hardly a secret. Still 2.0 looks more gray and less vivid with my settings.
I guess my system is cursed, like always. Would be curious to know what's different between our systems or displays, that I can't produce the same result as you. Good thing I use sdr only on the desktop (movies included, unless they're hdr), most of the time I game in hdr, either native or retrofitted with special k to d3d11/12 or dxvk+special k in case of old d3d9 games. In cases where it's not possible (very old ddraw or just finicky games), sdr mode looked ok for the most part.

P.s Huh stumbled upon dldsr bug again. Nvcpl is stuck with my dldsr mode, I can't remove or change it. It's somehow connected to what I did in cru, novideo and dldsr itself. Still it should not affect colors and can be drivers bug/limitation, as I changed cru stuff, nvcpl may not know how to react to that. I mentioned it in this thread last year actually.
I am also using MCM104 firmware and Firefox, but it's the same result in Chrome

Yes, I only use SDR if I'm browsing the internet and HDR on all games like you. Did you have the same black crush when you first used the monitor with novideo? Like without editing CRU or NVCP or anything

The only difference seems to be you changed more things in CRU, but if it wasn't colour related idk. Anyway, I don't think your monitor is cursed lol. I bet if you formatted Windows and started completely new, reset all your monitor settings then it would probably be fine. Only seeing square 7 or 10 first seems like it's too much of a difference in just how the panels are built and I guess is more likely to be a settings issue. But I just got this monitor a month ago so I'm clueless about this stuff