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LG OLED TV Fix Coming For Stutter Vision 120Hz Problem

LG who this week rolled out a new $122,000 rollable OLED TV is facing new problems with their X series OLED TV’s with users complaining of stutter vision.

The problem is the marriage of Nvidia 120Hz technology and LG’s OLED TV’s resulting in users facing frame rate skip and in the past black screens.

SmartHouse TV reviewer and Forbes Magazine writer John Archer claims the latest problem is being caused by Nvidia’s RTX 30 graphics cards.

The original issue which LG fixed resulted in black screens when using Nvidia’s G-Sync variable refresh rate technology at 120Hz, and some rather ugly chroma down sampling.

Once those issues were resolved users of the Nvidia RTX 30 cards with LG’s X Series 2020 OLED TVs reported noticeable stuttering when using G-Sync with high frame rates and colour sampling settings.

This stutter resulted in the picture freezing momentarily and then skipping ahead every few frames – something that’s particularly noticeable on the screen.

LG has promised to fix the latest Nvidia G-Sync stuttering problem on its X series OLED TVs via a firmware update

Users have compiled the following list of settings of where the stutter occurs – and one relatively low bandwidth setting where it does not:

8bit 3840X2160 120Hz 4:2:0 NO G-SYNC Stutter
10bit 3840X2160 120Hz 4:2:0 G-SYNC Stutter
8bit 3840X2160 120Hz 4:4:4 G-SYNC Stutter
10bit 3840X2160 120Hz 4:4:4 G-SYNC Stutter
8bit 3840X2160 120Hz G-SYNC Stutter
10bit 3840X2160 120Hz G-SYNC Stutter
Although the above list covers 4K feeds, the issue also impacts sub-4K resolution TV’s.
Even 1080p and 720p.

LG engineers, claim that they will have an update and fix by Christmas.

There is also concerns that the issue is affecting CX series TV’s ’ 40GBps HDMI bandwidth (versus the HDMI 2.1 maximum 48GBps supported on 2019’s C9 models which if so is a major problem for LG Electronics.

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