Sounds like you are honing in on the issue.
1 Like
Also forgot to mention that sometimes I get a black screen with lossless audio, in addition to red / blue / green tints, not sure if thatās relevantā¦
I have profile 07.06 DV MKVs. Will profile 8.1 fix the issue though?
1 Like
Would you be able to produce some samples that have this issue? Will take a look at them and see if I can work out the problem. Ensure you have used the latest MakeMKV as well as some of the original versions produced incompatible MKVās.
1 Like
And at what refresh rate because it limits DV to 29.976Hz with older displays.
1 Like
The OS knowās about it, but itās not exposed via the Android APIās or SDK so there is no way for an app to access the information. Iām keeping an eye out for possible solutions so we can switch to a Dolby Vision compatible mode when playing Dolby Vision. Understand the annoyance, as my display only offers DV at 29.976Hz which isnāt very nice to use outside of video playback.
Iām in the same boat.
1 Like
Managed to reproduce the black screen, with the TV identifying it as DV and sending out lossless audio to receiver. Sent a message with the log.
I have yet to reproduce either of the RGB tints though. Will keep an eye out.
1 Like
hey, just following up if it is thought that the Braviaās will be able to play dolby vision mkvās correctly or perhaps they only support the single non standard streaming color space and hence why we get the image in black and white?
1 Like
Managed to log an entire session with black screens (sent another message). 7 files total, I switched between the files back and forth multiple times and got the exact same results. 2 files played ok and black screen for the rest.
A restart of the Shield fixed the issue. Could this be a Shield issue then?
Also noticed that the HDR transcode looks better and brighter than the DV playback on the same file! I am quite certain of this difference.
Anyone have/notice this issue as well? I compared it to my DV MP4 created using the mp4muxer (direct played with an LG C9) and the DV MKV playback on the Shield/Plex looks bland in comparison
many people note that DV videos arenāt as bright as HDR10. I notice it on my Sony.
1 Like
In my case only on the Shield playback. Direct playing DV videos on the TV (I have an LG C9) beats HDR10 even with Dynamic Tone Mapping On and everything Dynamic on high. But DV still looks more natural and brighter than HDR10.
Now comparing direct play with the Shield / Plex playback, itās no contest. DV vs DV, the Shield / Plex playback looks way way bland.
Also noticed a few times that when playing DV on the Shield / Plex, sometimes at the start of playback, for just a split second, itās showing the correct brightness (I assume itās correct), then goes back to the bland image. Sometimes it does this, sometimes it does not, or maybe sometimes I just didnāt notice it. So I assume that thereās something wrong with the playback process? I only tested this with MKV files. Also havenāt tested any alternatives to Plex.
1 Like
could be the same issue that I noted on the the sony. Its known that sony implemented DV differently than moste othe TVs (āplayer ledā / lldv). Which was designed for streaming. Similarly, the codecs that the shield has are really designed from a streaming pov. Perhaps related (or not).
2 Likes
If you have any issues with DV on Shield TV, please donāt forget to mention it in dedicated thread on Nvidia forums 
2 Likes
Does Netflix App for android TV know this?
When your TV and media player both support DoVi, it shows a DoVi mark on the media information page.
1 Like
At least for me, Netflix shows the Dolby Vision logo whenever the content is Dolby Vision regardless of the display mode (if I use 4K 59Hz for instance only HDR10 is available, but Netflix still shows the Dolby Vision icon).
1 Like
Could it simply be that app is checking the client deviceās capability? Which would be same as checking display capability for on-board apps of smart TV, but not necessarily true for separate client devices like Shield.
Not Netflix, but I seem to remember with Disney+ app, DoVi logo was not present on titles that I definitely knew was mastered in DoVi when I had 2017 Shield. It is now present with 2019 Shield while using same display.
1 Like
As far as I know, the 2017 NVShield did not support DV.
1 Like
Thatās the point. It did not support it, therefore Disney Plus did not show the icon but did show it on 2019 version. Meaning Disney Plus app is looking at client capability at the least even if it wasnāt aware of display capability.
For the 2019 Shield Pro, the Disney+ app definitely knows whether the Shield is in a DV compatible mode because it removes the DV logos from shows such as the Mandalorian.
I see what you are trying to demonstrate. There would need to be a streaming device check from the app, then the device will check on the display capabilities. If both exist in the affirmative, then you should see a DV badge icon. Sounds easy enough in theoryā¦
Iām sure that @sixones and the team will figure it out, eventually. I am not a programmer and I am sure that many here want to think they are, but, sadly are not, as well. We all need to remind ourselves that itās always harder than it seems to a layperson. As a consumer, we always want something done for free and always seem to want it yesterday!
From my perspective, if the audio stream and subtitles can be chosen before and during playback, Iām sure they will find a way to choose between HDR10/HDR10+/DV soon. As far as why this would be useful is that not all displays are the same. So, even some displays that technically support DV may not, for example, have the nit brightness available for a superior picture and therefore HDR10 would be the best playback. (yes, I understand nit brightness is just a part of the DV standard - before some person comes along and tries to demonstrate their superior knowledge)
1 Like
