HDR too dark on TV

Hi, I know this has been brought up before but I have a LG OLED B7 TV and the HDR is way too dark, especially compared to the internal LG player.

I have enable the HDR setting in Kodi but no joy, also copied over the TV settings from the internal player to the Vero 4k but again, still so very dark.

I have seen a few threads regarding a setting within Putty but I am not completely up to speed with it, so any guidance would really be appreciated.

Vero 4k has been great up until now. Thanks

2 Likes

I have the C7 (same screen as the B7). HDR looks great. Are you sure your black level is set correctly? Can you post your picture settings including advanced settings?

Settings for the TV or the Vero? Thanks

TV.

Can you post debug logs, please? And media_info for the file.

Photos added

Those settings look good to me. Mine are very similar. I suspect the media or perhaps the soundbar at this point (if you connect through that?). What’s the source material? And is it the same issue directly connected to the TV?

The source material is a full uhd mkv at about 56gb.

I have the Vero connect in the hdmi input of the soundbar, which is a LG SJ9. Apparently it meant to pass through Dolby Vision so the Vero shouldn’t be a problem.

I will connect the Vero direct to the TV tomorrow and see if their is any difference.

Thanks

I’m definitely interested how you fare directly connected.

If I would recognize the movie I could help with the media info. I recognize Thor but can’t say of the marvel movies it is

It is Ragnarok. I can say because of the bad guy.

Nice !

Here is the mediainfo:

General
Unique ID : 241144215513941064453470441707756465411 (0xB56AAFC239E916CB62B6188DEF4E2D03)
Complete name :
Format : Matroska
Format version : Version 4 / Version 2
File size : 49.4 GiB
Duration : 2 h 10 min
Overall bit rate mode : Variable
Overall bit rate : 54.2 Mb/s
Encoded date : UTC 2018-02-23 12:38:17
Writing application : mkvmerge v20.0.0 (‘I Am The Sun’) 64-bit
Writing library : libebml v1.3.5 + libmatroska v1.4.8

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2 h 10 min
Bit rate : 49.2 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) : 0.248
Stream size : 44.9 GiB (91%)
Title : MPEG-H HEVC Video / 49235 kbps / 2160p / 23.976 fps / 16:9 / Main 10 Profile 5.1 High / 4:2:0 / 10 bits / HDR / BT.2020
Writing library : ATEME Titan File 3.8.13 (4.8.13.0)
Language : English
Default : Yes
Forced : No
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: 0.0000 cd/m2, max: 1000 cd/m2

Audio #1
ID : 2
Format : TrueHD
Format profile : TrueHD+Atmos / TrueHD
Codec ID : A_TRUEHD
Duration : 2 h 10 min
Bit rate mode : Variable
Bit rate : 4 051 kb/s
Maximum bit rate : 5 889 kb/s
Channel(s) : Object Based / 8 channels
Channel positions : Object Based / Front: L C R, Side: L R, Back: L R, LFE
Sampling rate : / 48.0 kHz
Frame rate : 1 200.000 FPS (40 SPF)
Compression mode : Lossless
Stream size : 3.69 GiB (7%)
Title : Dolby Atmos/TrueHD Audio / 7.1-Atmos / 48 kHz / 4691 kbps / 24-bit
Language : English
Default : Yes
Forced : No

Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 2 h 10 min
Bit rate mode : Constant
Bit rate : 640 kb/s
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 597 MiB (1%)
Title : Compatibility Track / Dolby Digital Audio / 5.1-EX / 48 kHz / 640 kbps
Language : English
Service kind : Complete Main
Default : No
Forced : No

Text #1
ID : 4
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 10 min
Bit rate : 37.9 kb/s
Count of elements : 4164
Stream size : 35.3 MiB (0%)
Title : SDH
Language : English
Default : No
Forced : No

Text #2
ID : 5
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 18.3 kb/s
Count of elements : 3138
Stream size : 17.0 MiB (0%)
Title : Cantonese
Language : Chinese
Default : No
Forced : No

Text #3
ID : 6
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 21.0 kb/s
Count of elements : 3245
Stream size : 19.4 MiB (0%)
Title : Traditional
Language : Chinese
Default : No
Forced : No

Text #4
ID : 7
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 30.4 kb/s
Count of elements : 3184
Stream size : 28.2 MiB (0%)
Title : Canadian
Language : French
Default : No
Forced : No

Text #5
ID : 8
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 26.3 kb/s
Count of elements : 3128
Stream size : 24.4 MiB (0%)
Title : Parisian
Language : French
Default : No
Forced : No

Text #6
ID : 9
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 33.3 kb/s
Count of elements : 3134
Stream size : 30.8 MiB (0%)
Language : German
Default : No
Forced : No

Text #7
ID : 10
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 22.1 kb/s
Count of elements : 2958
Stream size : 20.4 MiB (0%)
Language : Japanese
Default : No
Forced : No

Text #8
ID : 11
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 15.9 kb/s
Count of elements : 3112
Stream size : 14.7 MiB (0%)
Language : Korean
Default : No
Forced : No

Text #9
ID : 12
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 9 min
Bit rate : 31.3 kb/s
Count of elements : 3144
Stream size : 29.0 MiB (0%)
Title : Latin American
Language : Spanish
Default : No
Forced : No

Menu
00:00:00.000 : en:The Great Prophecy
00:06:20.672 : en:The Tragedy Of Loki Of Asgard
00:14:11.642 : en:A Worthy Inclusion
00:22:12.873 : en:The Goddess Of Death
00:26:43.060 : en:“Are You A Fighter, Or Are You Food?”
00:31:29.721 : en:Heiress Apparent
00:35:03.935 : en:The Grandmaster
00:42:49.734 : en:The Eternal Flame
00:48:31.534 : en:The Contest Of Champions
00:59:38.784 : en:The Resistance
01:07:57.907 : en:Hotheaded Fools
01:17:30.604 : en:The Revengers
01:27:25.323 : en:“The Revolution Has Begun”
01:36:08.721 : en:Ready For War
01:42:35.733 : en:“Asgard Is Not A Place”
01:49:19.887 : en:“What Were You The God Of Again?”
01:54:57.599 : en:Ragnarok
02:00:37.522 : en:End Credits

Let us know how you get on with that. If still a problem, please turn off HDR autoswitching, open a commandline and type

echo 10bit,limited | sudo tee /sys/class/amhdmitx/amhdmitx0/attr

Then start the movie.

My LG (although E6) is set to “isf expert (bright room)”, for me the best result so far.

Same here. I own a LG C7. I find the HDR Picture also very dark compared to other Sources.

I’d be interested to see a time stamp for a movie that is “obviously” too dark in your estimations. Then I can check on my C7, too.

I’m seeing the same thing, but in most cases it is subtle to me, with the Vero not quite hitting the same highlights as the internal player. I also have a B7 + Vero 4k, I’ve checked (and double checked and triple and…) that the settings are all the same across both inputs, and I get the same result directly connecting the Vero to my TV. The HDR autoswitching in the UI doesn’t work for me, so I still do the echo 422,12bit | sudo tee /sys/class/amhdmitx/amhdmitx0/attr (the mode my Samsung UHD player flips to for HDR) and I’ve also tried 10bit,limited.

Coco is a good example, though, as it’s a very colorful movie. Even the opening Disney and Pixar logos are noticeably different than the built in player, with the fireworks over the castle not popping on the Vero, and the Pixar logo is the wrong shade. Then 25:00 when they first come over the bridge we should see a jaw dropping display of color, but instead we get a pretty good display of color :grin:.

Terminator 2 also has a few good scenes to compare (it’s the first one I noticed). The scene at 30:30 is mid-late afternoon with a clear sky, but it looks like the sun is dim on the Vero 4k. Another scene is 1:30:20, the headlights should shine off the black highway at night, rather than just lighting it up, then the spotlights blinking through the trees should be almost distracting. Once they get into Cyberdyne the fluorescent lights are also subdued.

Both of my files are remuxed from disk. MediaInfos:

General
Unique ID                                : 23954229868131624551977650772593711104 (0x12056AB752852606C4892B89D8119800)
Complete name                            : Coco (2017)/Coco (2017) - 2160p HDR Bluray remux Atmos.mkv
Format                                   : Matroska
Format version                           : Version 2
File size                                : 41.2 GiB
Duration                                 : 1h 45mn
Overall bit rate mode                    : Variable
Overall bit rate                         : 56.1 Mbps
Movie name                               : Coco
Encoded date                             : UTC 2018-03-02 03:57:06
Writing application                      : MakeMKV v1.12.0 win(x64-release)
Writing library                          : libmakemkv v1.12.0 (1.3.5/1.4.7) win(x64-release)
Original source medium                   : Blu-ray
Cover                                    : Yes
Attachments                              : cover.jpg

Video
ID                                       : 1
ID in the original source medium         : 4113 (0x1011)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 1h 45mn
Bit rate                                 : 46.1 Mbps
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
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.232
Stream size                              : 33.8 GiB (82%)
Writing library                          : ATEME Titan File 3.8.12 (4.8.12.0)
Language                                 : English
Default                                  : No
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.2020
Matrix coefficients                      : BT.2020 non-constant

and

General
Unique ID                                : 195705138339284701419008436790576074638 (0x933B704963408A6354CD205B4A20CF8E)
Complete name                            : Terminator 2 Judgment Day (1991)/Terminator 2 Judgment Day (1991) - Theatrical cut - 2160p HDR Bluray remux.mkv
Format                                   : Matroska
Format version                           : Version 2
File size                                : 49.0 GiB
Duration                                 : 2h 17mn
Overall bit rate                         : 51.0 Mbps
Movie name                               : T2
Encoded date                             : UTC 2018-01-02 07:01:25
Writing application                      : MakeMKV v1.10.8 win(x64-release)
Writing library                          : libmakemkv v1.10.8 (1.3.5/1.4.7) win(x64-release)
Original source medium                   : Blu-ray

Video
ID                                       : 1
ID in the original source medium         : 4113 (0x1011)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 2h 17mn
Bit rate                                 : 47.0 Mbps
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
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.236
Stream size                              : 45.0 GiB (92%)
Writing library                          : ATEME Titan File 3.7.10 (4.7.10.0)
Language                                 : English
Default                                  : No
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.2020
Matrix coefficients                      : BT.2020 non-constant
1 Like

Interesting, I have Coco remuxed too so I will have a look at it too tomorrow. So far HDR seemed fine to me but being a bit underwhelmed by it so far I’m wondering if that might be due to the Vero.

Sigh.

Can now confirm this on my C7 with the Vero 4K. I guess HDR is indeed borked. Sam? Any chance we can get this looked at?

I compared Coco and indeed the intro is dim by comparison to LG’s built-in player and my Apple TV 4K. Which means the whole movie is. Which means HDR is borked on the Vero after all?

Do you have a non LG TV to test this on?
When you say HDR is borked: are you saying it doesn’t work at all? Do you see the HDR sign on your TV?

I assumed you have manually enabled 10-bit output for consistency.

Sam