Originally Posted by bodosom
John Archer/Forbes: "LG OLED Dolby Vision Bug Gets Fixed - By Sony. And maybe Oppo too." This is in the context of previous statements by "bloggers" that the DV fixes would have to be done on the display side.
Actually it was Dolby who said it had to be done in the display side not " bloggers."
Quote from the second linked John Archer article
"LG has rolled out a Dolby-created firmware patch to its 2017 OLED TVs designed to fix a long-running bug where black levels could suddenly plummet while watching dark Dolby Vision scenes over HDMI-connected sources."
Quote from the article you quoted but didn't link
"The bizarreness of the situation doesn’t end there, either. The thing is, the first external device to receive a firmware update that let it deliver Dolby Vision to Sony TVs was the Apple TV 4K. Yet this update did not fully fix the raised black level issue with LG OLEDs."
John even added in this article that he's gotten no confirmation from LG that this is a proper fix . Lots of maybe's and forum chatter but nothing official from anybody yet. I read the whole article.
The 11.3 release notes don't mention fixing the LG or Sony issues (or any DV changes) and yet both were -- albeit imperfectly. This has been documented by multiple owners. I think the existence of a fix trumps your belief that it can't be done.
My belief is if it's done it will be done by Dolby in cooperation with it's firmware licensed partners. Just like every other licenced closed source product is updated/patched regardless of the hardware manufacture licensee's OS.
I'm trying to focus on you're statement comment/assertion:
"And how exactly is the Sony player accessing and changing/improving a closed source end to end DV workflow to improve the picture? The answer is it can't."
And yet it does for 2016 LG. It must be more of that "magic".
Actually, owners of the Sony player have found that it's just accomplishing this by crushing the black levels(I'm in that players owners thread as well) so it hasn't fixed anything. It's just masked it.
Licensing agreements always determine/define the licensees ability to make changes affecting the licensed product. Nothing can be done without Dolby's input and approval period. That's the whole point of having a licensing agreement in the first place. It's to protect the product being licensed from being modified without approval and support. Any fixes whether it gets implemented within an LG TV or a Sony or OPPO disc player will have the licenser fully involved in the process throughout testing and release. It's not that they can't touch it. It's that they've signed something saying they won't without Dolby in the loop.
This is getting way off topic for this thread so if you want to continue it further you can PM me. I want to get back to OPPO talk here.