How to display 24fps when playing movies from PC into LG G2 OLED

sunshinewelly

sunshinewelly

sunshinewelly

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I am seeing some judder on panning scenes when playing movies from my pc through my LG OLED. When selecting game optimiser which shows the frame rate it says 60fps which i assume means my OLED is running at 60fps rather than 120 fps. I am aware that 24 does not fit into 60fps easily which may explain the judder.

I understand that using real cinema will in effect solve this issue but you cant select real cinema when the TV is connected to a PC

I am running MPC with madvr and CTR J shows the display at 23 fps etc but I assume that's the frames being generated rather than what the display is set to.
 
Do you have a kodi box, nvidia shield or similar as those do native auto switching- if that works then issue is your HTPC, not the TV/setting

There will be some judder with 24hz, that's just due to the low framerate, if you imagine a panning shot that's fairly fast, it means there be be a 3" distance onscreen per frame, compared to a much slower pan resulting in more smoother apparent motion as it's now say 1cm per frame. So nothing changed with framerate or motion interpolation, just speed of camera panning.

Imagine playing a game at 24fps, locking framerate to that.
 
If you're talking panning scenes and OLED, then I suspect it's stutter that's annoying you rather than judder.

You won't get rid of it by changing from 60Hz to 120Hz, the issue with OLED (and other fast response screens) is that the pixel response time is so fast compared to the 24 frames being presented to it, it results in frames being held for so long it causes the stuttering effect in a way that slower panel technologies don't exhibit (as there is more 'pixel downtime' helping blend one frame to the next visually).
 
You need to use something like enable Frame Interpolation to remove the judder. I had this problem when I got my first Blueray drive for my PC many moons ago, as all the disks would judder when panning or fast moving scenes due to the 24fps limit. The only way to remove this is to get a devices that does Frame Interpolation creating extra frames smoothing the moving image. AMD has a function in the driver that can do this, or it did many years ago if you are playing films via PC.
 
This is a big rabbit hole to go down and a problem tv manufacturers struggle with. On one hand you have smooth panning and a soap opera effect, on the other you have panning judder but a very filmic look.

On the lg there are options which do the interpolation with different severities. You should have a play with them.

There is another issue here in that some 24hz films are actually 23.97hz to line up with ntsc refresh rates which can cause audio sync issues etc.

It’s all a grotty mess and needs standardising.
 
Would it be possible to share the library using DLNA and use the TV's built in DLNA player to see if it's an issue with the screen settings, source material or if it's just the PC at 60fps? Most of my media is now either DLNA from the NAS or Plex as I found it easier to use the TV's menu than switching to the PC.
 
Steeps said:
Would it be possible to share the library using DLNA and use the TV's built in DLNA player to see if it's an issue with the screen settings, source material or if it's just the PC at 60fps? Most of my media is now either DLNA from the NAS or Plex as I found it easier to use the TV's menu than switching to the PC.
Click to expand...

or put the file on USB stick, plug into PC.

Media playback from TV's isn't bad.
 
stuman said:
This is a big rabbit hole to go down and a problem tv manufacturers struggle with. On one hand you have smooth panning and a soap opera effect, on the other you have panning judder but a very filmic look.

On the lg there are options which do the interpolation with different severities. You should have a play with them.

There is another issue here in that some 24hz films are actually 23.97hz to line up with ntsc refresh rates which can cause audio sync issues etc.

It’s all a grotty mess and needs standardising.
Click to expand...
Yeah, there's not much you can do with sample and hold OLEDs.

I have a G2 as well OP, but I don't tend to watch movies on it.

I use Plex to stream to my Sony OLED, which runs things at 24fps, but there are still issues on that with certain panning shots.

I think there's a panning shot that opens the movie 'Hell or High Water' and that was awful.
 
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