OLED55C6V videoplayer displays green shaded picture for some Dolby Vision videofiles

[Николай Долбня 1]

When I try to play some Dolby Vision video on my OLED55C6V from USB-flash or from DLNA-server (without any conversion) by the internal application for photo and video playback I see the picture painted green. Some Dolby Vision video is played properly. So can I change something in my television settings or in the video-file (I would be able to re-encode or remuxe it if I knew what should I change) for fixing the problem? Thank you beforehand!

Mediainfo file dump:

General
Complete name                            : N:\02.Chameleon.mp4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (mp42/iso6/isom/msdh/dby1)
File size                                : 530 MiB
Duration                                 : 1 min 2 s
Overall bit rate                         : 70.9 Mb/s
Encoded date                             : UTC 2019-06-13 18:12:29
Tagged date                              : UTC 2019-06-13 18:12:29

Video #1
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main [email protected]@High
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : hev1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 1 min 2 s
Bit rate                                 : 55.6 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.280
Stream size                              : 416 MiB (78%)
Default                                  : No
Encoded date                             : UTC 2019-06-13 18:12:29
Tagged date                              : UTC 2019-06-13 18:12:29
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : Display P3
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level              : 1000 cd/m2
Maximum Frame-Average Light Level        : 60 cd/m2
Codec configuration box                  : hvcC

Video #2
ID                                       : 2
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main [email protected]@High
HDR format                               : Dolby Vision, Version 1.0, dvhe.07.06, EL+RPU / SMPTE ST 2086, HDR10 compatible
Codec ID                                 : dvhe
Codec ID/Info                            : High Efficiency Video Coding with Dolby Vision
Duration                                 : 1 min 2 s
Bit rate                                 : 13.6 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.274
Stream size                              : 102 MiB (19%)
Default                                  : No
Encoded date                             : UTC 2019-06-13 18:12:29
Tagged date                              : UTC 2019-06-13 18:12:29
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : Display P3
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2
Codec configuration box                  : hvcC+dvcC

Audio
ID                                       : 3
Format                                   : E-AC-3 JOC
Format/Info                              : Enhanced AC-3 with Joint Object Coding
Commercial name                          : Dolby Digital Plus with Dolby Atmos
Format profile                           : Blu-ray Disc
Codec ID                                 : ac-3
Duration                                 : 1 min 2 s
Bit rate mode                            : Constant
Bit rate                                 : 1 664 kb/s
Channel(s)                               : 8 channels
Channel layout                           : L R C LFE Ls Rs Lb Rb
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Bit depth                                : 16 bits
Compression mode                         : Lossy
Stream size                              : 12.5 MiB (2%)
Language                                 : Russian
Service kind                             : Complete Main
Default                                  : No
Encoded date                             : UTC 2019-06-13 18:12:29
Tagged date                              : UTC 2019-06-13 18:12:29
Complexity index                         : Not present / 16
Number of dynamic objects                : 15
Bed channel count                        : 1 channel
Bed channel configuration                : LFE

 

[László Görömbei 0]

Hi! I face the same problem with my oled 55C6V tv. Is there any solution so far to help get rid of this color anomaly? Lastest firmware did not help.

Thanks!

[td47 42]

@Николай Долбня It is possible that one of the "expert mode settings" is not correct for some media types being decoded. I did see mention of a bug in some sort of "lookup table" for this stuff, in another forum. Try temporarily turning off the "dynamic tone-mapping" in settings -> Picture -> Picture Mode Settings. Then see if the affected test videos are improved or not.

If no difference, try testing with other modes off or on as needed, BUT- DO REMEMBER your initial settings, so you can get it back to your normal settings for regulat TV viewing. Take a photo of your settings on your phone or camera before starting changing anything.

NOTE: if you DO find that (e.g. dynamic tone-mapping) is the culprit, then report it to your country LG Support site, as this forum is ONLY a peer-to-peer enthusiasts forum, and is NOT OWNED OR RUN BY LG. If users do that, then there is more chance of a fix from LG.

Edited November 30, 2020 by td47
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