@paul1111wrote:
this is what I can not understand is the specs for sky's HDR should have been known age's ago and just for PR I would have thought Samsung would have made sure everything worked on start up in Italy. One thing I will agree with you on this if it does not get fixed is Samsung never made claims to support sky with any model so we can not really complain. It will also be interesting to see how other manufacturers get on.
Specs for HLG are known - which is why our TV's can play HLG. The problem isn't HLG/HDR its that the EDID, the information that the TV sends to devices like the DirectTV or SkyQ box to tell those that the TV is HLG enabled, dosn't state the TV is HLG enabled - just HDR enabled. This means that those boxes think the TV isn't HLG capable and therefore won't even try to send HLG.
Its like not turning on the HDMI UHD Colour and devices not able to communicate properly so you don't get HDR sent to the TV. It doesn't mean the TV isn't HDR enabled. It seems the EDID is only sending out that the TV is HDR enabled (not HLG) and so Samsung needs to update the EDID info. Knowing exactly what devices want to receive is not necessarily going to be known for months. After all HLG doesn't need to be treated like HDR because its a single stream (hence Hybrid). Maybe thats why the Samsung Bluray Players work because they don't need the 'HLG' EDID - just a HDR. This may have caught Samsung out and they expected HLG to work under a 'HDR' EDID but some devices need to know that the TV is HLG specifically.
I don't know how else to explain it. Its as simple as I can make it. When a HDR device is connected to a TV, that TV has to tell the device if its HDR enabled or not - that's what EDID does. Some devices need to know that the TV is HLG enabled specifically (not a 'general' HDR - and we know Samsung sees HDR as all-encompassing rather than breaking it down into the different formats) but the EDID currently doesn't state HLG enabled which is why its causing issues. If they fix that 'communication' to tell the devices that the TV is HLG enabled, the devices will then send HLG. Its not that Samsung didn't know the specs of HLG, they probably didn't think (or know) that these devices needed more specific details - like the fact the TV is HLG enabled - until the issue cropped up recently with DirectTV. After all, it works with their own Bluray players.
If, for example, the EDID didn't tell a device it was a 4k screen, some devices may only offer 1080p content even if they are 4k enabled. That wouldn't mean that the TV wasn't 4k enabled - the same principal applies here but it seems some devices want to know what HDR formats a TV can support - whether its HDR10 HDR, Dolby Vision HDR, HDR10+ HDR or HLG HDR. The current EDID only tells devices its HDR enabled - maybe because Samsung expect that to be sufficient for ALL HLG enabled devices - after all HLG is a form of HDR and that worked with their own devices. Its difficult to say that Samsung should of known that other manufacturers devices may have required a more specific EDID months ago but as long as it can be fixed.....
