LG 55C6v(p) 4K OLED (2016 Series) via EDID - weird issues related to RGB Full/YCbCr420
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I just received my brand new 2016-series LG 55C6v (LG 55C6p in the US) which I got as a switch-unit for my LG 55EF950v (9500 in the US). As some of you might remember I absolutely loved the EF950v but was a little bit confused by crosstalk issues. So when my dealer offered me the unit-switch for just a little extra-charge I instantly accepted the offer. So while the 55C6v is from LG's new 2016-series and also has a CURVED display in contrast to my EF950v I had high hopes that I could use joker's praised EDID-override that I also used for my EF950v. After everything was connected properly I did the EDID override (using joker's EDID) and the display was instantly detected as "Acer LG..."-display also showing the "Optimized for Geforce 3D"-icon and indeed it seemed to work just like it should in 3D. In Nvidia Control Panel under "Change resolution" I also set the Output colour format to "RGB" and the Output dynamic range to "Full" (just as I did with the LG 55EF950v). Unfortunately when set to RGB-Full (or any other format aside from YCbCr420) I get some weird issues in 3D. It seems that one of the stereoscopic images is somehow colourless or just grey totally destroying the 3D. I remember CHTIBLUE mentioning such an issue in this thread [url]https://forums.geforce.com/default/topic/818183/3d-vision/gtx-970-4k-3d-vision-gaming-success-with-lgub850v-passive-tv-/24/[/url] (Post #346) The only option where both stereoscopic images show the same colour is Output colour format YCbCr420, which seems way more flat than RGB-Full so I would really like to avoid it. I really don't know what is causing this issue and I appreciate every help I can get on this matter. Yes I managed to do the EDID override without a problem but I really don't know what the EDID override exactly does beside the obvious. So I would like to know if this issue could have something to do with the EDID override that I used. I was of the opinion that the EDID override always is an "all or nothing"-affair so your displpay is either accepted as it should and then EVERYTHING works or it is not correctly detected and thus it shouldn't work at all. Is it possible that joker's EDID override is somehow compatible with my LG 55C6v but still not totally compatible so that this is causing the issue? I guess the fact that the LG 55C6v is a curved display doesn't play a role here, right!? I'll attach some photos I took where you can easily see the difference between RGB-Full and YCbCr420-modes. With RGB-Full you can see that the high-coloured segments are only coloured for one eye while the complementing segment for the other eye appears grey/black. Also you can see that the same segments in YCbCr420-format are coloured across both eyes. Any help is highly appreciated since the display is absolutely stunning otherwise!
I just received my brand new 2016-series LG 55C6v (LG 55C6p in the US) which I got as a switch-unit for my LG 55EF950v (9500 in the US). As some of you might remember I absolutely loved the EF950v but was a little bit confused by crosstalk issues. So when my dealer offered me the unit-switch for just a little extra-charge I instantly accepted the offer.

So while the 55C6v is from LG's new 2016-series and also has a CURVED display in contrast to my EF950v I had high hopes that I could use joker's praised EDID-override that I also used for my EF950v.

After everything was connected properly I did the EDID override (using joker's EDID) and the display was instantly detected as "Acer LG..."-display also showing the "Optimized for Geforce 3D"-icon and indeed it seemed to work just like it should in 3D.

In Nvidia Control Panel under "Change resolution" I also set the Output colour format to "RGB" and the Output dynamic range to "Full" (just as I did with the LG 55EF950v).

Unfortunately when set to RGB-Full (or any other format aside from YCbCr420) I get some weird issues in 3D. It seems that one of the stereoscopic images is somehow colourless or just grey totally destroying the 3D.

I remember CHTIBLUE mentioning such an issue in this thread

https://forums.geforce.com/default/topic/818183/3d-vision/gtx-970-4k-3d-vision-gaming-success-with-lgub850v-passive-tv-/24/

(Post #346)

The only option where both stereoscopic images show the same colour is Output colour format YCbCr420, which seems way more flat than RGB-Full so I would really like to avoid it.

I really don't know what is causing this issue and I appreciate every help I can get on this matter.

Yes I managed to do the EDID override without a problem but I really don't know what the EDID override exactly does beside the obvious. So I would like to know if this issue could have something to do with the EDID override that I used. I was of the opinion that the EDID override always is an "all or nothing"-affair so your displpay is either accepted as it should and then EVERYTHING works or it is not correctly detected and thus it shouldn't work at all.

Is it possible that joker's EDID override is somehow compatible with my LG 55C6v but still not totally compatible so that this is causing the issue? I guess the fact that the LG 55C6v is a curved display doesn't play a role here, right!?

I'll attach some photos I took where you can easily see the difference between RGB-Full and YCbCr420-modes. With RGB-Full you can see that the high-coloured segments are only coloured for one eye while the complementing segment for the other eye appears grey/black. Also you can see that the same segments in YCbCr420-format are coloured across both eyes.

Any help is highly appreciated since the display is absolutely stunning otherwise!

#1
Posted 09/22/2016 03:39 PM   
I dont have a solution but im interested in the color space differences. There shouldnt be basically any difference between YCbCr and rgb, right? Unless you are running rgb full in nv control panel and rgb limited in tv settings which could result YCbCr looking more "flat" as you put it. Do you have YCbCr 444 available to select btw? Rgb limited works ok with the edid override? If everything else fails at least you can run rgb limited and be done with it. Make sure that tv also is in rgb limited mode and you wont notice difference between full/full and limited/limited with you eyes.
I dont have a solution but im interested in the color space differences.

There shouldnt be basically any difference between YCbCr and rgb, right? Unless you are running rgb full in nv control panel and rgb limited in tv settings which could result YCbCr looking more "flat" as you put it. Do you have YCbCr 444 available to select btw? Rgb limited works ok with the edid override? If everything else fails at least you can run rgb limited and be done with it. Make sure that tv also is in rgb limited mode and you wont notice difference between full/full and limited/limited with you eyes.

#2
Posted 09/22/2016 04:20 PM   
Isn't YCbCr 4:4:4 showing up? This is the one that you should use. Don't forget you need to use your HDMI 2.0 port, Not all the ports are compatible. Also look for UHD color in your TV menu and set it to on.
Isn't YCbCr 4:4:4 showing up? This is the one that you should use.
Don't forget you need to use your HDMI 2.0 port, Not all the ports are compatible.
Also look for UHD color in your TV menu and set it to on.

Intel i7 8086K
Gigabyte GTX 1080Ti Aorus Extreme
DDR4 2x8gb 3200mhz Cl14
TV LG OLED65E6V
Windows 10 64bits

#3
Posted 09/22/2016 07:46 PM   
YCbCr4:4:4 is also selectable but as I said the results are the same as RGB Full. Even RGB Limited looks like RGB Full. YCbCr seems to be the only option where I don't notice this issue. Yes, UHD color is enabled for the TV. With UHD color disabled the TV didn't even get the PC's signal (was the same for the EF950v). I am using HDMI port 1 which is definitely a HDMI 2.0 port! Maybe I should check indeed if the TV's settings interfere with the Nvidia settings (although nothing comes to mind right now).
YCbCr4:4:4 is also selectable but as I said the results are the same as RGB Full. Even RGB Limited looks like RGB Full. YCbCr seems to be the only option where I don't notice this issue.
Yes, UHD color is enabled for the TV. With UHD color disabled the TV didn't even get the PC's signal (was the same for the EF950v).
I am using HDMI port 1 which is definitely a HDMI 2.0 port!
Maybe I should check indeed if the TV's settings interfere with the Nvidia settings (although nothing comes to mind right now).

#4
Posted 09/22/2016 09:51 PM   
On my TV HDMI 2.0 port is no 3. Check the manual again just to be sure.
On my TV HDMI 2.0 port is no 3. Check the manual again just to be sure.

Intel i7 8086K
Gigabyte GTX 1080Ti Aorus Extreme
DDR4 2x8gb 3200mhz Cl14
TV LG OLED65E6V
Windows 10 64bits

#5
Posted 09/23/2016 04:29 AM   
Every HDMI-port on the 55C6v is HDMI 2.0 compatible. I made some progress but still weird things happen: Out of desperation I just changed the TV's picture mode and suddenly the weird color-issue was gone. I tested it with several picture modes and they all didn't show the color issue I noticed in "game"-mode. So while this is definitely a progress I still have no clue what causes the issue in game-mode since I also disabled every picture enhancing options when I checked those other modes. There must be something in gaming mode that is causing the issue. Now here comes the next weird issue: when I launched the Nvidia test application I noticed that while the 3D seems to be ok overall the pink column somehow breaks the 3D so I can clearly see two pink columns as the stereoscopic images don't converge in that segment with glasses on. So I am looking at a scenery that is cleary stereoscopic but in that specific area (pink column) I can still see both individual pink columns. This can be overcome by cranking up the convergence (with glasses off) to the point where both pink colums align. With both pink columns aligned in the test application the corridor looks perfect 3D-wise but now the convergence is cranked up in a way that the flying eye is definitely too much (especially when it is going to the foreground). It is getting even more weird: I took two 3D screenshots so you can better understand what I am saying here (one with normal convergence where you can still identify both pink column-images while everything else seems to be stereoscopic and one screenshot with cranked up convergence so the pink columns align (with glasses off) so the corridor looks perfectly stereoscopic with the overall convergence way too high. But when I had a quick look at those screenshots on my Acer 3D Vision 2 monitor both screenshots looked absolutely flawless. On my 3D Vision 2 monitor you can't identify those 2 pink columns when looking at it. The screenshot is absolutely flawless on my Acer monitor. Could it be the EDID override has something to do with it?
Every HDMI-port on the 55C6v is HDMI 2.0 compatible.

I made some progress but still weird things happen:

Out of desperation I just changed the TV's picture mode and suddenly the weird color-issue was gone. I tested it with several picture modes and they all didn't show the color issue I noticed in "game"-mode.
So while this is definitely a progress I still have no clue what causes the issue in game-mode since I also disabled every picture enhancing options when I checked those other modes. There must be something in gaming mode that is causing the issue.

Now here comes the next weird issue: when I launched the Nvidia test application I noticed that while the 3D seems to be ok overall the pink column somehow breaks the 3D so I can clearly see two pink columns as the stereoscopic images don't converge in that segment with glasses on. So I am looking at a scenery that is cleary stereoscopic but in that specific area (pink column) I can still see both individual pink columns. This can be overcome by cranking up the convergence (with glasses off) to the point where both pink colums align. With both pink columns aligned in the test application the corridor looks perfect 3D-wise but now the convergence is cranked up in a way that the flying eye is definitely too much (especially when it is going to the foreground).

It is getting even more weird: I took two 3D screenshots so you can better understand what I am saying here (one with normal convergence where you can still identify both pink column-images while everything else seems to be stereoscopic and one screenshot with cranked up convergence so the pink columns align (with glasses off) so the corridor looks perfectly stereoscopic with the overall convergence way too high. But when I had a quick look at those screenshots on my Acer 3D Vision 2 monitor both screenshots looked absolutely flawless. On my 3D Vision 2 monitor you can't identify those 2 pink columns when looking at it. The screenshot is absolutely flawless on my Acer monitor.

Could it be the EDID override has something to do with it?

#6
Posted 09/23/2016 08:14 PM   
It seems that you are describing Colorbug. I only had this problem when not using HDMI 2.0 and HDMI color. For some reason HDMI color is not activated in your case. Also please make sure you selected YCbCr4:4:4. You say you sometimes got out of range in some resolutions.How long is your cable?
It seems that you are describing Colorbug. I only had this problem when not using HDMI 2.0 and HDMI color.
For some reason HDMI color is not activated in your case. Also please make sure you selected YCbCr4:4:4.

You say you sometimes got out of range in some resolutions.How long is your cable?

Intel i7 8086K
Gigabyte GTX 1080Ti Aorus Extreme
DDR4 2x8gb 3200mhz Cl14
TV LG OLED65E6V
Windows 10 64bits

#7
Posted 09/24/2016 04:33 AM   
I tried it with two different and rather short high quality cables (length 1.5 meter/2.0 meter).
I tried it with two different and rather short high quality cables (length 1.5 meter/2.0 meter).

#8
Posted 09/24/2016 06:25 AM   
On a such short cable it shouldn't be a problem. Save the original Edid of your TV with MOninfo and attach it here. PS: When you save the edid make sure you have UHD color enabled and YCbCr4:4:4 (don't use 422 or 420)
On a such short cable it shouldn't be a problem.

Save the original Edid of your TV with MOninfo and attach it here.
PS: When you save the edid make sure you have UHD color enabled and YCbCr4:4:4 (don't use 422 or 420)

Intel i7 8086K
Gigabyte GTX 1080Ti Aorus Extreme
DDR4 2x8gb 3200mhz Cl14
TV LG OLED65E6V
Windows 10 64bits

#9
Posted 09/24/2016 08:42 AM   
When using game mode, to reduce lag, the bells and whistles get turned off. My color is bad in game mode as well on my (2D) 4K, I think the HDR gets turned off. I use it in ISF mode, because playing WoW,, lag doesn't matter so much and better colors help. And, yes, the EDID override can have something to do with it, compare the colors of the original and modified inf. using Moninfo. If they are different, change them as needed, maybe you can simply swap extension blocks. And as Joker stated, sometimes short cables can be a problem because you'll get reflections bouncing back from the input to the output. If I remember correctly, Blue Jeans cable had an article about it.
When using game mode, to reduce lag, the bells and whistles get turned off.

My color is bad in game mode as well on my (2D) 4K, I think the HDR gets turned off.

I use it in ISF mode, because playing WoW,, lag doesn't matter so much and better colors help.

And, yes, the EDID override can have something to do with it, compare the colors of the original and modified inf. using Moninfo.

If they are different, change them as needed, maybe you can simply swap extension blocks.

And as Joker stated, sometimes short cables can be a problem because you'll get reflections bouncing back from the input to the output. If I remember correctly, Blue Jeans cable had an article about it.

#10
Posted 09/24/2016 10:34 AM   
Hello! My question is very simple: what are your / the best picture settings of the LG 55C6V ?? ( color, contrast, brightness, but also the othe options like Super Resolution, etc ) Please email it to: leelandmusicrules@gmail.com or marcel.hansen@vkg.com Thanks in advance and look forward to hear from you! Best Regards, Marcel Hansen The Netherlands
Hello!

My question is very simple: what are your / the best picture settings of the LG 55C6V ?? ( color, contrast, brightness, but also the othe options like Super Resolution, etc )

Please email it to: leelandmusicrules@gmail.com or marcel.hansen@vkg.com


Thanks in advance and look forward to hear from you!

Best Regards,

Marcel Hansen
The Netherlands

#11
Posted 09/28/2016 11:52 AM   
[quote="joker18"]On a such short cable it shouldn't be a problem. Save the original Edid of your TV with MOninfo and attach it here. PS: When you save the edid make sure you have UHD color enabled and YCbCr4:4:4 (don't use 422 or 420)[/quote] Somehow I totally missed the new entries in this thread. Meanwhile my whole situation changed...AGAIN: Desperately contemplating about what could be done about the 55C6V and wistfully thinking back to the glorious EF950V that worked nearly flawless in 3D (aside from the pronounced ghosting) I checked my dealer's offerings on ebay just to find out that he currently is selling the 2015-models even cheaper than he did when I bought the EF950V. That means that he is currently selling the LG 65EF950V for roughly the price that I paid for the LG 55C6V. I don't need to tell you that those 65"-monsters are normally priced 50-60% higher than their 55" counterparts. So I didn't hesitate and asked for the switch...AGAIN! Now I am expecting the LG 65EF950V as a switch unit for my LG 55C6V. I definitely rank the plus 10" higher than the slightly improved quality of the 2016-models. Also I already know that the EF950V flawlessly works in conjunction with my PC in 3D Vision. And it doesn't hurt either that the EF950V is NOT curved. @marcelhansen Did you manage to get the 55C6V flawlessly working in 3D Vision? If yes which EDID did you use?
joker18 said:On a such short cable it shouldn't be a problem.

Save the original Edid of your TV with MOninfo and attach it here.
PS: When you save the edid make sure you have UHD color enabled and YCbCr4:4:4 (don't use 422 or 420)


Somehow I totally missed the new entries in this thread. Meanwhile my whole situation changed...AGAIN:

Desperately contemplating about what could be done about the 55C6V and wistfully thinking back to the glorious EF950V that worked nearly flawless in 3D (aside from the pronounced ghosting) I checked my dealer's offerings on ebay just to find out that he currently is selling the 2015-models even cheaper than he did when I bought the EF950V.

That means that he is currently selling the LG 65EF950V for roughly the price that I paid for the LG 55C6V. I don't need to tell you that those 65"-monsters are normally priced 50-60% higher than their 55" counterparts. So I didn't hesitate and asked for the switch...AGAIN! Now I am expecting the LG 65EF950V as a switch unit for my LG 55C6V.

I definitely rank the plus 10" higher than the slightly improved quality of the 2016-models. Also I already know that the EF950V flawlessly works in conjunction with my PC in 3D Vision. And it doesn't hurt either that the EF950V is NOT curved.


@marcelhansen
Did you manage to get the 55C6V flawlessly working in 3D Vision? If yes which EDID did you use?

#12
Posted 09/28/2016 01:22 PM   
When I migrated from 55UB9500 to 65UF9500, I discovered that the 65 in passive screen had a (proportionately) larger minimum 3D viewing distance than the 55 in passive screen. The 55 in passive screen actually had a larger 3D FOV than the larger LED TV, when viewed at each TV's minimum 3D viewing distance. So, I migrated back to 55UB9500 - until I got my 55EF9500. It will be interesting to see if LG's OLED model has this same issue...
When I migrated from 55UB9500 to 65UF9500, I discovered that the 65 in passive screen had a (proportionately) larger minimum 3D viewing distance than the 55 in passive screen. The 55 in passive screen actually had a larger 3D FOV than the larger LED TV, when viewed at each TV's minimum 3D viewing distance. So, I migrated back to 55UB9500 - until I got my 55EF9500.

It will be interesting to see if LG's OLED model has this same issue...

#13
Posted 09/29/2016 02:59 AM   
I also had crosstalk issues after upgrading and it ended up being the HDMI cord and the EDID I was using. I needed a 30 foot cord but 25 is the limit on sending a 4K 60hz signal without loss even with the best cords. I had to buy a 4K 60hz 4:4:4 chroma repeater with and an extra 6 foot cord to get the 31 feet I needed. Also, for some reason Innuendo's EDID gave me near 0 ghosting while Joker's gave me quite a bit more. This is for a 2016 60uh8500 model.
I also had crosstalk issues after upgrading and it ended up being the HDMI cord and the EDID I was using. I needed a 30 foot cord but 25 is the limit on sending a 4K 60hz signal without loss even with the best cords. I had to buy a 4K 60hz 4:4:4 chroma repeater with and an extra 6 foot cord to get the 31 feet I needed. Also, for some reason Innuendo's EDID gave me near 0 ghosting while Joker's gave me quite a bit more. This is for a 2016 60uh8500 model.

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.

#14
Posted 09/29/2016 10:02 AM   
[quote="whyme466"]When I migrated from 55UB9500 to 65UF9500, I discovered that the 65 in passive screen had a (proportionately) larger minimum 3D viewing distance than the 55 in passive screen. The 55 in passive screen actually had a larger 3D FOV than the larger LED TV, when viewed at each TV's minimum 3D viewing distance. So, I migrated back to 55UB9500 - until I got my 55EF9500. It will be interesting to see if LG's OLED model has this same issue...[/quote] I remember you saying that you switched from 65 back to 55. Since I also own the XBox One S and will switch my PS4 with the new PS4 Pro as soon as it is out 4K even becomes interesting for my consoles. So I felt the need to sell my 60" LG Full HD so I could use the LG 4K OLED also for the consoles. Also I wasn't too happy with such a huge monitor for doing stuff aside from gaming. So I bought the very good Acer GN246HL 3D Vision 2 monitor. Now I have the PC and all the consoles connected to the 4K OLED for all things gaming (and watching movies) and the Acer monitor for all other PC related tasks (currently the 55C6V is still connected but I guess this will change over the weekend when my LG 65EF950V should arrive. [quote="CeeJayII"]Also, for some reason Innuendo's EDID gave me near 0 ghosting while Joker's gave me quite a bit more. This is for a 2016 60uh8500 model.[/quote] That sounds interesting. Could you please attach Innuendos EDID here or tell me where I can find it. I would like to try that one too (although joker's EDID is working pretty good with the EF950V). I also would like to try Innuendo's EDID with the 55C6V as long as it is still connected to my PC. Thanks in advance!
whyme466 said:When I migrated from 55UB9500 to 65UF9500, I discovered that the 65 in passive screen had a (proportionately) larger minimum 3D viewing distance than the 55 in passive screen. The 55 in passive screen actually had a larger 3D FOV than the larger LED TV, when viewed at each TV's minimum 3D viewing distance. So, I migrated back to 55UB9500 - until I got my 55EF9500.

It will be interesting to see if LG's OLED model has this same issue...



I remember you saying that you switched from 65 back to 55. Since I also own the XBox One S and will switch my PS4 with the new PS4 Pro as soon as it is out 4K even becomes interesting for my consoles.
So I felt the need to sell my 60" LG Full HD so I could use the LG 4K OLED also for the consoles.

Also I wasn't too happy with such a huge monitor for doing stuff aside from gaming. So I bought the very good Acer GN246HL 3D Vision 2 monitor. Now I have the PC and all the consoles connected to the 4K OLED for all things gaming (and watching movies) and the Acer monitor for all other PC related tasks (currently the 55C6V is still connected but I guess this will change over the weekend when my LG 65EF950V should arrive.

CeeJayII said:Also, for some reason Innuendo's EDID gave me near 0 ghosting while Joker's gave me quite a bit more. This is for a 2016 60uh8500 model.


That sounds interesting. Could you please attach Innuendos EDID here or tell me where I can find it. I would like to try that one too (although joker's EDID is working pretty good with the EF950V).
I also would like to try Innuendo's EDID with the 55C6V as long as it is still connected to my PC.

Thanks in advance!

#15
Posted 09/29/2016 01:21 PM   
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