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LG Passive 3DTV colorbug investigation and FIX - 3D Vision Blog - Forum



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 Post subject: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 22 Feb 2012, 18:43 
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Posts: 17
Location: Russia


Attachments:
LG_EDID_NOEXT_NOSOUND_ACER_PASSIVE_3D.inf [2.31 KiB]
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Last edited by Shii on 05 Mar 2012, 21:58, edited 4 times in total.
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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 22 Feb 2012, 19:55 
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Posts: 3148
Location: Sofia, Bulgaria
Shii, thanks for sharing this detailed guide, I'm sure that owners of Passive 3D LCD HDTVs will find this very useful, especially if they are using their TV set for playing games in stereo 3D mode... :D


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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 23 Feb 2012, 19:32 

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23 Feb 2012, 19:22
Posts: 13
hey shii - first of all - thank you very much for your great and very detailed guide!

I have pretty much the same tv (55lw4500) - i have used your created inf file for the 42lw4500 + lg trick

The picture is miles better, but i find it kinda strange that i have still got some colorbug/ghosting.

My ISF sharpness (vertical/horizontal) is at 60 - of course i have messed around with some settings..but 60 seems the best for my tv.

What ISF settings have you made - color, sharpness v/h and so on?

Maybe it`s because of the inf file...but i thougt it should be the same..cause only the size differs.

kind regards!


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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 23 Feb 2012, 20:59 
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Posts: 17
Location: Russia
Hugezilla
Are nvidia driver recognizes your TV connection as DVI after installing new inf and rebooting? This can be checked in the Display/Change resolution section of Nvidia control panel (see attachment for example with latest 295.73 nvidia driver). Did you notice decreased amount of colorbug after installing inf and rebooting with both sharpness - 50? Can you check the same content in overunder or side-by-side mode to get referense image, as it should be seen without colorbug? Notice, that any 3dtv CAN produce a very small amount of ghosting even in frame-packing colorbug-free mode.
About ISF sharpeness - you only need to tweak vertical sharpness. Horisontal does nothing with colorbug.

My inf should work with any LG Passive 3DTV, i think.

My other settings are:
Game mode:
Backlight - 75
Contrast - 90
Brightness - 55
Sharpness - 56
Colour - 50
Tint - 0
ColourTemp - 0
In advanced settings all off, Gamma - medium, Black level - High, Real Cinema - On, Colour Gamut - Wide

ISF Expert1 mode:
Backlight - 70
Contrast - 98
Brightness - 58
H Sharpness - 50
V Sharpness - 56
Colour - 52
Tint - 0
In Expert Control settings all off exept real cinema, Black level - High, Colour Gamut - Wide. Didn`t change another settings like Color Temperature, Gamma, Method and other.


Attachments:
295.73_dvi.jpg [91.02 KiB]
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Last edited by Shii on 23 Feb 2012, 22:02, edited 1 time in total.
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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 23 Feb 2012, 21:54 
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Posts: 17
Location: Russia
Ok, I should write a little more about fast checking for colorbug.
First, download and attached image (unzip it).
Select your 3DTV as primary TV, start StereoPhoto Maker and open image guitar hero 3 - 2 - esrb t pegi 12+.jps with it.
Click Stereo/Intarlaced/Row Interlaced, press "J" and enlarge image to full screen (Enter).
Now check image for ghosting - focus on right girls twin tails - it shouldn`t ghost at left and right. Check another parts of image for ghosting. You can fine-tune your tv settings with this image opened.

My results:
Original LG colorbug without fixes -
LG colorbug partially fixed with EDID inf override -
LG colorbug fully fixed with EDID inf override and LG settings trick -


Attachments:
guitar hero 3.zip [322.31 KiB]
Downloaded 1404 times
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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 23 Feb 2012, 23:13 

Joined:
23 Feb 2012, 22:55
Posts: 5
Hi!

I too have a bit of colorbug after installing the inf-file and using the LG settings trick. (v-sharpness=55 in expert1 in HD-DVD)

But i found that i get completely colorbug-free by changing backlight or contrast after using the LG settings trick (e.g. using LG settings trick, then change backlight from 100 to 99 and back to 100)!


Thanks alot for your work on investigation and attached inf-file! (and butmunch/mocca for his LG settings trick!)

(LG 55LW659s, GTX470, GeForce 295.73 WHQL, 3DTV Play, Windows 7 32bit)


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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 24 Feb 2012, 00:23 

Joined:
23 Feb 2012, 19:22
Posts: 13
hey shii - thx again for your help

i have done everything according to your guide, but still..theres a fair amount of color ghosting (especially at the girls twin tails (left and right) - purple ghosting)

I really don`t know..how this is possible..or how i can fix this.

What firmware is on your TV right now? - 04.60.26 or the only-russian version - 04.60.27??

@Vittoria

How`s that possible?? - after you have done the lg trick - you can`t set anything without reseting the picture settings, which were carried over from the hd-dvd label isf setting.

kind regars


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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 24 Feb 2012, 00:39 

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23 Feb 2012, 22:55
Posts: 5
Hmm, maybe it differs form TV-type and/or firmware version. My TV is 55LW659s and firmware is 05.10.05.

What i see is:
In PC mode there is no colorbug but i see the clear white bug.
In all other modes there is no clear white bug but colorbug.

The inf-file enables me to use interleaved 3D mode with nvidia 3dtv play.

The LG settings trick removes the clear white bug, but a bit colorbug is then visible. (v-sharpness gets set correct, but probably "something else" gets set that introduces a bit colorbug)

After that, changing backlight or contrast in PC mode removes the introduced colorbug. (v-sharpness stays same, the "something else" gets corrected)

Very strange.


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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 24 Feb 2012, 08:06 
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Posts: 17
Location: Russia
Hugezilla, answer my questions from the post above, please. Did you disable all image enchancements like Edge Enchancement in Advanced settings? You can also test for ghosting in 1080p60 and 1080p24. In 1080p24 I can change Sharpness even with PC mode enabled on TV.
I`m using 04.60.27 firmware.

Also I must agree with vittorio - maybe colorbug differs form TV-type and/or firmware version.
When I tested LG settings only V Sharpness resolved colorbug problem. Backlight, Contrast, Brightness and other didn`t change anything.


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 Post subject: Re: LG Passive 3DTV colorbug investigation and FIX
PostPosted: 24 Feb 2012, 13:35 

Joined:
23 Feb 2012, 19:22
Posts: 13
@Shii

jap, the tv is recognized as DVI Monitor plus i have applied your settings...and as I said..there is still some colorbug.

I`m running at 04.60.26 firmware, cause xxxx27 is only for russia avaiable - should i consider appliying xxxxx27???

@vittorio

Interleaved mode is only avaiable at PC-input mode, as far as i know..cause when i swith to HD-DVD example...the 3d picture looks messed up.


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