Status of 23.976 on SHIELD Android TV

by traCkready

I am looking for clarification, I have found information that is contradictory.

I know that on launch SHIELD ATV only supported 24.00 FPS, causing pull-down and it's associated issues. It seems that at some point, maybe android M update, that 23.976 was enabled.

Now, when going to refresh rates in settings I can set the refresh. Obviously I don't want 23.976 output fixed, many things such as youtube are 30/60 FPS. Plex does have the option (like many blu-ray players) to set refresh rate to source on playback. All of that appears to work, except when playing 23.976 content I get cadence and picture anomalies. It's almost like its set at 24.00 FPS and having pulldown artifacts and pacing issues.

I can't verify if its 23.976 or 24 on the TV since like most displays it rounds 23.976 to 24p for the info banner.

Is 23.976 working correctly on SHIELD? If it is, is there a known issue with the Plex implementation of refresh rate switching?

I really don't mind the 60FPS playback, it does a fine job. My main issue is my TV (like many) has a separate motion resolution control for 24p content than 60p content. Basically I am able to get a lot more motion resolution without the dreaded SOE (soap opera effect) when using my TV's dedicated 24p judder reduction. Using the 60FPS motion setting gets the SOE in a hurry.

Pedromvu

No it's not currently working fine in general, but more on that later, the whole story is this:

Shield TV originally only had 24hz support, until it was one of the most requested features to add proper 23.976hz, it was added on FW 2.0 and was working fine up to FW 2.1.

Then with Marshmallow FW 3.0 something was broken and there is some stutter every certain amount of minutes, but it varies a lot by app, for example it happens on Netflix, but worse on Hulu, and doesn't happen at all on Kodi, Kodi works fine with auto refresh switching and all, for the others you need to manually change it.

Apparently with FW 3.1 the issue was reduced in Netflix but it is still there, you can check the thread on this: source

Someone even mentions he found the commit that breaks it and fixed it but Nvidia hasn't really fixed it yet.

BTW I don't know the status for Plex.

ParadoxicGer

Yes, it's working correctly. If you use Kodi you see that it will correctly switch to the 23.976 hz for movies without any kind of picture issues.

I can't say if it's an issue of Plex or not but 24hz works.

drhill80

~23.976 works fine. I believe their rate is something like 23.97605 or something like that. Don't quote me on the exact rate, but it isn't merely 24.000.

Plex has it's own issues. I know this as I wrote my own plex client that uses only hardware video decoding, pass through audio, and ffmpeg for any audio streams that don't pass through and I don't have any playback issue.

KnifeFed

Good to hear! Thanks for the info.