Strange Resolution...3838x1920 won't play in 4K, 3840x1920 will

Been watching Apples’ “For All Mankind”…from 10 gig files.
All episodes are 3840x1920 (weird for film) and play perfectly on my Vero4K+ to my Hisense H9G.
Except… 3 episodes are 3838x1920 and revert to 1080.
I’ve remuxed them and such…with no joy.
Anything I could do with the whitelist to get 4K out of these.?

Can you give us the MediaInfo of the file?

The whitelist logic is that at least one of the width or height has to match exactly one of the resolutions available.

Sure…note, I remuxed eac3 sound to ac3…

Unique ID : 180508132355648017445219857324592533007 (0x87CC9A0B098BEBE4BBCEF156670F0E0F)
Complete name : V:\For All Mankind (4K)\S01E07 Hi Bob.mkv
Format : Matroska
Format version : Version 4
File size : 10.5 GiB
Duration : 59 min 35 s
Overall bit rate : 25.2 Mb/s
Encoded date : UTC 2021-03-01 05:53:49
Writing application : mkvmerge v8.1.0 (‘Psychedelic Postcard’) 64bit
Writing library : libebml v1.3.1 + libmatroska v1.4.2

ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5@High
HDR format : SMPTE ST 2086, HDR10 compatible
Duration : 59 min 34 s
Bit rate : 24.6 Mb/s
Width : 3 838 pixels
Height : 1 920 pixels
Display aspect ratio : 2.000
Original display aspect ratio : 1.999
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) : 0.139
Stream size : 10.2 GiB (97%)
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: 0.0050 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 10000 cd/m2
Maximum Frame-Average Light Level : 333 cd/m2

ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : A_AC3
Duration : 59 min 35 s
Bit rate mode : Constant
Bit rate : 640 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 273 MiB (3%)
Title : Dolby Digital 5.1
Language : English
Service kind : Complete Main
Default : Yes
Forced : No

ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 59 min 5 s
Bit rate : 78 b/s
Count of elements : 949
Stream size : 33.9 KiB (0%)
Title : English
Language : English
Default : No
Forced : No

You will need to set your desktop to 4k and maybe turn off adjust refresh rate.

If a whitelist is being used couldn’t the resolution just be switched to 4K during playback in the video OSD settings without all that faffing about?

1 Like

I could give that a try…out of the many many 4K files I have, it’s these 3 that revert to 1080…just the difference between 3838 and 3840 is enough to do it.
My H9G displays the good ones (3840) as 2160 rather than 1920, although I doubt any upscaling is being done.
I don’t fault my Vero here, this is just a mystery…why are the files 1920 in the first place?

I tested this file and to answer my own question, yes. I confirmed that with the auto whitelist the file in question outputs in 1080. I then set the whitelist for all 1080 and 4K resolutions enabled and tried it again. On my system this made it so the file automatically started using 3840x2160 @ 23.98 and my TV’s info screen confirmed HDR and 2160 input. I then used the select resolution option in the OSD Video settings to switch between 1080 and 2160 output without issue. Note that the ‘select resolution’ option is only available if you have manually set a whitelist.

Thanks Much !
I had test whitelisted the 1080 resolutions but didn’t do the 4K ones…

Your welcome. If you need more information on how to optimally configure the white list you can find it in the following how-to…