I have a Fire TV box hooked up to the HDCP port of my Samsung 4K tv, and I can play 4K youtube and 4K Amazon Video (verified by pressing the "info" button on the remote and seeing 3840x2160 / 30p), but when I try to play a 4K video file through the plex app, it transcodes with the reason "Unable to Direct Play as this media is not compatible with the device.", the Size in the details overlay says 3840x2160, but my TV is in 1920x1080 / 60p still when I check the tv info overlay.
Has anybody else had a similar problem with playing 4K content through the Fire TV on a 4K TV? I know 4K works on my TV since I can play other content through the Fire TV and the TV switches to 3840x2160 / 30p, but when I try to play my 4K video file (3840x2160 / 24p), the TV stays in 1920x1080 / 60p.
The video file has the following properties:
`Media
Video Resolution 4K
Duration 52:50
Bitrate 38794 kbps
Width 3840
Height 2160
Aspect Ratio 1.78
Container MKV
Video Frame Rate 24p
Video Profile high
Part
Duration 52:50
Size 14.32 GB
Container MKV
Video Profile high
Codec H264
Bitrate 37382 kbps
Bit Depth 8
CABAC true
Chroma Subsampling 4:2:0
Color Range tv
Color Space bt709
Duration 52:50
Frame Rate 23.976 fps
Frame Rate Mode cfr
Height 2160
Level 5.1
Pixel Format yuv420p
Profile high
Ref Frames 5
Scan Type progressive
Width 3840
Codec AC3
Channels 5.1
Bitrate 640 kbps
Language English
Audio Channel Layout 5.1(side)
Bit Depth 16
Bitrate Mode CBR
Dialog Norm -31 dB
Duration 52:50
Sampling Rate 48000 Hz
Codec SRT
Language English
Format SRT`
I'm of course playing this on the "Original" quality setting and with subtitles turned off.