Originally Posted by gothmessiah
Hi people, i recently bought my first OLED being the LG OLED C8 and google this thread to ask for help on something that is really bothering me.
I have connected my PC to my TV via HDMI from my Nvidia GTX 1080 Ti to HDMI1 TV Input, also enable Ultra Deep Color so i can have Full Color in Windows 10.
The problem is, no matter what i do, i always get Videos from my PC with stuttering and i know for sure is not VLC or my PowerDVD related problem, happens with all PC video players i can think off.
Reading a lot seems all OLED suffers in some extent from Stuttering playing 24hz Blurays, but thought the C8 was the less prone to Stutter.
I have tried LG C8 Options Menu and played with RealCinema On/Off and use TruMotion feature (which i don´t like to use because of artifacts in video images) and none of this really takes away the horrible stutter in video media playback.
Have you guys found related stuttering problems, perhaps from your Windows 10 PC Movies and or Videos?
Hope someone can help me. My OLED TV firmware is the latest. (forgot to mention)
Originally Posted by _Tor_
I just picked up an LG C8. To avoid the soap opera effect I’ve disabled TruMotion completely, and as expected I’m now experiencing stuttering issues. I’ve listed the relevant devices connected to the TV below together with some key information.
Any advice on relevant settings, including refresh rate settings, player settings and TV settings such as TruMotion settings, are greatly appreciated.
1. Intel NUC:
- Device supports both [email protected]
and [email protected]
in addition to lower resolutions and refresh rates, and it’s currently set to [email protected]
- Used mainly to view video content generated in 1080P with either 23,98 fps or 29,97 fps.
- Content is mainly viewed in VLC, Kodi and browser based players (e.g. Netflix).
- Stuttering is apparent in all players, and it’s worst when viewing content with 23,98 fps.
- So far I’ve tried to adjust the refresh rate set in Windows, and I do notice a slight improvement when using 59 Hz in comparison to 60 Hz.
2. Set top box
- Device supports both [email protected]
and [email protected]
in addition to lower resolutions and refresh rates, and it’s currently set to 1080p/50.
- Most of the content that is viewed is generated in 720P with 25fps.
- Stuttering is worst in movies.
Just had my 55 inch C8 delivered over the weekend!
The C8 will be the primary display for my PC running a GTX1060, set to 2160p, 60Hz, Ycbcr 10bit. Movies are played using MPC+Madvr or Kodi+Madvr
I unfortunately hit the same problem as quoted by 2 others. There are constant stutters while playing any and all 24p movies through any player on windows, be it SDR or HDR. This issue is exaggerated to another level in HDR point where you really cannot even watch a movie anymore. Note that this issue does NOT exist if I play a 60p video (ex: youtube). This issue also does not exist while playing anything from the built in Netflix or Primevideo apps, as they natively set to 24p/24Hz.
After tinkering with my TV without sleep for 2 days straight, I have conclusively narrowed this problem down to the Real Cinema option, for sure.
In SDR, if you set Real Cinema to off (with TrueMotion also off, of course) in either the Technicolor or the two ISF profiles, then all is well, and there are zero stutters. Problem solved.
But this means that in any profile, even though the Real cinema option is on but greyed out and cannot be changed, the previous assumption that others had made stating that it is "off" whenever "greyed out but set to on" is not true. It is on, and it is doing something to create stutters in video when you're playing a 24fps video on a 60Hz signal on a PC.
You might think that what I'm experiencing is judder, not stutter, but I would like to assure you that the issue I'm experiencing is stutter, not judder, because I de-judder using MadVR's excellent option called smooth motion, which I've used for many years, which allows judder free playback (without any soap opera effect) of 24p video on a 60Hz signal. Switching this on or off in MadVR doesn't change how Real Cinema is causing the stutters on the C8 though!
P.S: for those who might want to suggest that I switch refresh rates to 24Hz via MadVR every time a video starts, do know that it is not a bug free solution. The player hangs 2 out every 5 times if you keep doing this.
Now for the biggest issue. In HDR mode, unfortunately, you CANNOT switch off Real Cinema in any movie mode! It is set to on (but greyed out) in the Cinema, Standard, Vivid & Technicolor modes. The stutter is unbearable. The only mode I can use in HDR is Game, because Real Cinema is hardcoded to off (and greyed out) in this mode. But in Game mode, even though I've tried to tweak the profile to look as close as possible to the Technicolor profile, it is still not the same, and just doesn't look as good as Technicolor does, so effectively I'm in a compromised usage mode and cannot enjoy the TV to the fullest in HDR mode.
I have tried Truemotion at user with 0,0 / 0,10 / 0,5 / 1,0, but this does not override Real Cinema like how it has been stated before either. Real Cinema is still there and doing something it shouldn't. Real Cinema shouldn't be kicking in at 60Hz in my opinion! I have no idea why LG would not let users choose when to turn it on or off.
I did also manage to fix this issue in another method by labeling the HDMI input as PC, which automatically disables Real Cinema as well, or hardcodes it to off (and greyed out) in all profiles, SDR and HDR. I thought that was it, with a sigh of relief, until I saw bad banding issues while playing HDR in PC mode (irrespective of active profile being Cinema or Technicolor), which made usage of PC mode a no-no for me.
And in Dolby Vision mode, you just cannot turn off Real Cinema at all in any of the modes, but then Windows doesn't really have Dolby Vision content so you could say I won't hit this issue, and since the built in Netflix/Prime TV apps start natively playing at 24p anyway while playing Dolby vision, the stutter issue isn't there. But then, I'll now come to the soap opera effect I seem to perceive with Real Cinema on in 24p mode! More on this below
Originally Posted by H00D4M4N
I agree with you 100%. I purchased an LG OLED and I have been regretting my purchase ever since. Here's why:
When I first got the TV, it was amazing for the most part and I was really happy with it the first couple of months. However, when I first got it, there wasn't much 4K content around, and Dolby Vision was still brand new and most players weren't even capable for it yet.
That's when I started to notice "soap opera effects" (SOE) when I was playing back 4K content. For the life of me, I couldn't figure out what was causing this. I checked and made sure that True Motion was disabled. I even had the set in for warranty and had some chips replaced and when I got it back it still had it.
Months passed, and I still couldn't figure it out. By now, it was driving me bonkers because I really hated this look. Then one day, I managed to turn off RealCinema in HDR mode and the problem was solved. The picture looked exactly like it was supposed to, and looked stunning. This is the TV I was hoping for.
Now that I figured out the issue, I went on a RealCinema tirade, turning it off in every mode I could. This is where the problem is, though. For some stupid reason that LG still hasn't yet come out to explain, YOU CAN'T TURN OFF REALCINEMA IN DOLBY VISION MODE. It is grayed out in this setting, and no matter what you try to do you can't change it.
So then I started emailing LG over and over trying to figure out what this issue is with RealCinema and I finally got this response:
"RealCinema was originally intended to be truthful to 24 fps (frames per second) by playing each movie frame 5 times when processing video at 120Hz for a crisp Cinema-like feel to any 24 fps movies played. Regrettably, LG Engineers appear to have prioritized the insertion of an algorithm calculating extra frames whenever processing video at 120Hz giving it that Soap Opera effect."
So there you have it. LG bungled RealCinema so that the crisp Cinema-like feel they were aiming for ended up being more like a soap opera feel. LG is keeping quiet about this, though, which is infuriating because as far as I'm concerned, this is a defect. I purchased this TV expecting the best picture possible but I'm not getting it because the company is forcing one of their own stupid settings (that they messed up) on the consumer -- without even offering the ability to turn it off. If it wasn't grayed out this wouldn't be an issue. I would simply just go into settings and shut RealCinema off.
Because LG did is and is not taking any responsibility about it, or offering any kind of rebates or returns or whatnot, I will not only NEVER purchase another LG product ever again, I would NEVER recommend an LG TV to anyone -- because honestly this is a faulty product. If you're going to implement something of your own creation into an electronics product like a TV, you NEED to either make sure that it's functioning exactly like it's supposed to AND have the ability to disable the feature because most cinephiles like to watch movies as they were intended, not with added processing that makes it look cheap and being stuck with it forever.
I agree! While playing from the built in Netflix and Primevideo TV apps, with Truemotion off, and Real Cinema On, I can definitely perceive a mild soap opera effect. How did you manage to turn off Real Cinema for HDR though? I really need that workaround desperately. If anyone has any suggestions, please chime in.