Apple TV 4K - HDR/edge glow issue

Waxweazle

macrumors newbie
Original poster
Oct 22, 2013
26
1
Belgium
I've recently purchased an Apple TV 4K and it's working fine for the biggest part.
However, I have 2 issues, basically.

1. HDR looks washed out. Both the home screen and any movie I watch (I have a NAS with my movies on) is washed out. I have checked both my TV and Apple TV settings but can't find any solution for it, except turning off HDR.

2. Seeing as HDR isn't my biggest concern, I thought I'd just turn it off.
This brings another issue with it, however...
When watching a movie - any movie - There's a greenish glow that seems to overlay my movie. Sometimes it's green, other times it becomes red. It's very distracting when trying to watch a movie. The movie itself looks perfectly fine but the black bars on the top and bottom are filled with this green and red glow.
However, when turning HDR on, despite the washed out colours, there are NO signs of this glow.
I am not really noticing this glow when I'm on the home screen though.

Has anybody got a solution to get rid of this?
I honestly purchased this device mainly for watching these movies on my TV quick and easily... So this is pretty disappointing.
I can't seem to find a good solution when googling.

Here's a screenshot with said issue; the green being the most obvious colour. Red was a difficult one to photograph honestly so I didn't bother with that.
 

Audit13

macrumors 603
Apr 19, 2017
5,286
1,338
Toronto, Ontario, Canada
What are you using to play files from the nas?

Have you tried different HDMI cables and/or HDMI inputs on the tv? Have you enabled deep colour on the tv inputs?
 

Waxweazle

macrumors newbie
Original poster
Oct 22, 2013
26
1
Belgium
Currently VLC. I was just switching around and the glow is now gone, evem though it was there on the same settings...

Any idea how to fix the HDR by any chance?
Would be nice to have normal colours on the home screen as well... Or is that normal for HDR?
It's not changing to better quality colours when playing movies for me.
 

570934

Suspended
May 3, 2011
710
107
Currently VLC. I was just switching around and the glow is now gone, evem though it was there on the same settings...

Any idea how to fix the HDR by any chance?
Would be nice to have normal colours on the home screen as well... Or is that normal for HDR?
It's not changing to better quality colours when playing movies for me.
Which model of TV do you have? Sounds like you are forcing HDR on when your movies will be in just standard colour. Turn on match frame rate/content in the settings and it will automatically turn your HDR on and off dependant on your movie. Currently using ATV the only way to watch HDR content is via streaming.


As far as the colours in the bars are concerned you may want to adjust your TV setting, looks like the brightness is too high. Google you TV's for best settings, there's many sites which have tested and shared settings.
 

Waxweazle

macrumors newbie
Original poster
Oct 22, 2013
26
1
Belgium
Which model of TV do you have? Sounds like you are forcing HDR on when your movies will be in just standard colour. Turn on match frame rate/content in the settings and it will automatically turn your HDR on and off dependant on your movie. Currently using ATV the only way to watch HDR content is via streaming.
I have a Samsung TV, UE55KU6400 to be exact.
I have used HDR on my PS4 perfectly fine before and I know how my TV works, the issue isn't there. Those settings are fine.
The Apple TV just doesn't seem to trigger HDR colours when a HDR movie is playing (again, it's a movie on my NAS though). I don't use any streaming services at all, only my own NAS so I can't compare with other services.
Is there no app that supports watching your own movie files?
I specifically note [HDR] for those that I have that support HDR on my NAS, so it's not that I'm trying non-HDR movies with HDR.
I guess I expected the device to switch to the proper HDR setting when I'm playing HDR content but seemingly it doesn't. It doesn't even give me HDR colours when I'm playing a HDR movie and manually put on HDR.

As far as the colours in the bars are concerned you may want to adjust your TV setting, looks like the brightness is too high. Google your TV's for best settings, there are many sites which have tested and shared settings.
Colour issue's already fixed really. Not a clue what it is - I checked everything and it worked perfectly fine on everything else, it was only the Apple TV with this issue.
However, changing back and forth between a few output options seemingly fixed it somehow. No clue how but... The colours are fixed!
 

570934

Suspended
May 3, 2011
710
107
So these movies you are playing from your NAS. Are these rips of DVD or bluerays?

If you have turned match content/frame rate in the ATV setting and the film you are playing is true HDR content than you TV will then automatically switch to HDR.
 

Waxweazle

macrumors newbie
Original poster
Oct 22, 2013
26
1
Belgium
So these movies you are playing from your NAS. Are these rips of DVD or bluerays?

If you have turned match content/frame rate in the ATV setting and the film you are playing is true HDR content than you TV will then automatically switch to HDR.
They are, yes.
It is enabled, however, it's not switching.
I tested these on different TV via a different way and the HDR worked perfectly fine on that TV.
 

570934

Suspended
May 3, 2011
710
107
So if they are DVD rips they won't be HDR so the ATV won't detect it as being HDR and won't trigger your TV to switch to HDR. Forcing it on manually will just make things look terrible which is probably why your TV is showing light bleed around the edges.

I think you need to do a little research on what HDR is and how your TV works properly when HDR content is played to it.
 

Waxweazle

macrumors newbie
Original poster
Oct 22, 2013
26
1
Belgium
So if they are DVD rips they won't be HDR so the ATV won't detect it as being HDR and won't trigger your TV to switch to HDR. Forcing it on manually will just make things look terrible which is probably why your TV is showing light bleed around the edges.

I think you need to do a little research on what HDR is and how your TV works properly when HDR content is played to it.
No, you're misunderstanding it.
The, what you call light bleeding around the edges, was an issue that was not HDR related. It happened on every non-HDR movie I was playing and while I'm not sure what the issue was, I assume there was a glitch with the settings on resolution/quality. My TV is 50Hz and I swapped around a few times to 1080p, 4K, 50Hz, HDR enabled and disabled and now settled on 4K, 50Hz, SDR and it's gone. The issue has disappeared.

Whether they are DVD/Blu ray rips doesn't matter... I've played the same movie files on a different TV using Plex and it perfectly triggered the HDR there. I'm misunderstanding why this isn't possible on Apple's Apple TV product. Granted, I'm using VLC because there aren't many apps that offer media streaming from your NAS (that I am aware of at this point that also work on Apple TV).

I know what HDR is and how my TV works... You're misunderstanding what I'm aiming at I think.
 

570934

Suspended
May 3, 2011
710
107
But the point is your TV won't play the files in HDR because DVD rips don't have relevant metadata to produce HDR. The metadata tells the TV that it is na HDR file and switches accordingly. As I've said three times previously, make sure you have the setting set to match frame rate and content in the ATV. iF the file you are playing is HDR then it will play the file in HDR, otherwise it will play it in SDR.
 

Audit13

macrumors 603
Apr 19, 2017
5,286
1,338
Toronto, Ontario, Canada
The Plex app on the Apple TV 4k will play HDR movies and trigger HDR on HDR-compatible TVs.

I tested this feature using the Plex app on my apple tv 4k.
 
Last edited:

steve23094

macrumors 68030
Apr 23, 2013
2,694
1,480
Does VLC support HDR? How do you know it’s not a bug in VLC? Try a different player.
 

Tech198

macrumors G5
Mar 21, 2011
14,819
1,896
Australia, Perth
I've recently purchased an Apple TV 4K and it's working fine for the biggest part.
However, I have 2 issues, basically.

1. HDR looks washed out. Both the home screen and any movie I watch (I have a NAS with my movies on) is washed out. I have checked both my TV and Apple TV settings but can't find any solution for it, except turning off HDR.

2. Seeing as HDR isn't my biggest concern, I thought I'd just turn it off.
This brings another issue with it, however...
When watching a movie - any movie - There's a greenish glow that seems to overlay my movie. Sometimes it's green, other times it becomes red. It's very distracting when trying to watch a movie. The movie itself looks perfectly fine but the black bars on the top and bottom are filled with this green and red glow.
However, when turning HDR on, despite the washed out colours, there are NO signs of this glow.
I am not really noticing this glow when I'm on the home screen though.

Has anybody got a solution to get rid of this?
I honestly purchased this device mainly for watching these movies on my TV quick and easily... So this is pretty disappointing.
I can't seem to find a good solution when googling.

Here's a screenshot with said issue; the green being the most obvious colour. Red was a difficult one to photograph honestly so I didn't bother with that.
TV's plays tricks on ones eyes? *shrugs*
 

GrumpyCoder

macrumors 6502
Nov 15, 2016
273
222
Assuming your AppleTV and playback software is set up properly, go into your picture options menu on the tv and set the hdmi black level to low (I assume it’s on normal). This should fix the elevated brightness levels and washed out look. The red/green artifacts are due to color space setting, there’s an option for that in the menus as well, forgot what it’s called.
 

BellsWhistles

macrumors member
Aug 17, 2009
62
29
California
I've recently purchased an Apple TV 4K and it's working fine for the biggest part.
However, I have 2 issues, basically.

1. HDR looks washed out. Both the home screen and any movie I watch (I have a NAS with my movies on) is washed out. I have checked both my TV and Apple TV settings but can't find any solution for it, except turning off HDR.

2. Seeing as HDR isn't my biggest concern, I thought I'd just turn it off.
This brings another issue with it, however...
When watching a movie - any movie - There's a greenish glow that seems to overlay my movie. Sometimes it's green, other times it becomes red. It's very distracting when trying to watch a movie. The movie itself looks perfectly fine but the black bars on the top and bottom are filled with this green and red glow.
However, when turning HDR on, despite the washed out colours, there are NO signs of this glow.
I am not really noticing this glow when I'm on the home screen though.

Has anybody got a solution to get rid of this?
I honestly purchased this device mainly for watching these movies on my TV quick and easily... So this is pretty disappointing.
I can't seem to find a good solution when googling.

Here's a screenshot with said issue; the green being the most obvious colour. Red was a difficult one to photograph honestly so I didn't bother with that.

Try changing the colour sampling to a different mode. In the video settings there are 3 sampling modes (4:4:4, 4:2:2 and 4:2:0). It sounds like the changing background glows are random colour bits.
 

Michelasso

macrumors 6502
Feb 20, 2012
402
66
Treviso, Italy
The PS4 and ATV use 2 different profile. And VLC on ATV is quite bad. So I'd suggest the following:

1. Replicate ALL the PS4 picture settings when using the ATV. You may take some pictures with the phone, it helps.
2. Get a better media player. Infuse as already suggested is supposed to have the best picture. But it's free only for videos with audio supported by tvOS (or was it free for stereo only?). Or Plex, which is completely free on ATV unless you want the Plex Pass features.
3. Be sure that the HDMI port you're using for the ATV has the "extended" (or whatever, if any), enabled. For example on many Bravia only HDMI port 2 & 3 fully support 4K@60 fps with HDR. And that must also first enabled. Using HDMI ports 1 or 4 one may not get the perfect results.
 
Last edited:
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