XE90 - Dolby Vision

[cjkelly93]

It was previously understood that Dolby Vision cannot be activated on the XE90 series as it required the X1 Extreme or better chipset.

Based on the specs for the XG85 this does not appear to be true:

https://www.sony.co.uk/electronics/televisions/xg8505-series/specifications

Why then cant the XE90 get an update for dolby vision?

[Marino.Manolo]

Probably also depends on the Android TV platform on which these models are developed, ATV2 (XE90), ATV3 (XF90 / XG85, choice not to include it for XG83).

Manolo

[Kuschelmonschter]

The XG85 already has the new MediaTek MT5893 (MT5598) SoC which directly implements Dolby Vision without requiring Sony's image processor support anymore.

Just to clarify the Sony naming confusion, those are their current Android TV platforms:

ATV1 (MediaTek MT5890): 2015-2016

ATV2/ATV3 (MediaTek MT5891): 2016-2019 (XE90 and XF90 fall in this category, 2019 AG8 OLED also still uses this platform from 2016 for whatever reason)

UR1 (MediaTek MT5893): 2018-

Why Sony put the new SoC on XG85 but not the AG8 is beyond me. They still seem to be using the three year old MT5891 (2016) on various products in 2019.

Also benchmarks of another Realtek based platform (called VU1) are floating around.

Image processor (X1 *whatever*) is a distinct chip. X1 Extreme added support for Dolby Vision even with older MediaTek SoCs.

XE90 neither has the X1 Extreme nor MediaTek MT5892/MT5893 chipset. So there won't be DV support. Don't be sad though. DV is absolutely not worth the buzz it is being given.

[Marino.Manolo]

AG8 not use the Mediatek 5597?  

Manolo

[Kuschelmonschter]

MT5892 (MT5597) has never been used in any BRAVIA even though it already supported DV. This chipset has been a total disaster. MT5891 has already been quite slow, but with MT5892, MediaTek further reduced CPU clock frequency, going from an OpenGL 3.2 compliant Mali T860 to an OpenGL 2.0 compliant Mali-450.

This disaster lead to Sony having to implement DV in their image processor which became a disaster of its own...

[cjkelly93]

Thanks for the clarification

[npapanik]

HLG, HDR & Dolby Vision support in European Sony TVs:

https://www.sony.co.uk/electronics/support/articles/00161421