2018 LG C8-E8 Owners' Thread (No Price Talk) - Page 388 - AVS Forum | Home Theater Discussions And Reviews
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post #11611 of 21726 Old 01-16-2019, 04:18 PM
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Originally Posted by mrtickleuk View Post
Yes I have today, just to see what happens. Very hard to see a visible difference by eye. Won't have time to do measurements until at least the weekend, and even then perhaps not.

Thinking it might have disabled the white sub-pixel completely, I also tried jk82's 9-square flashing pattern. (Can't remember if others have done so before). It didn't affect it at all. So perhaps the TV will always use the white sub-pixel, and it's just the "boost" at the very top end that's being controlled here.
My understanding is that you won't see a difference between the default value and off but will see a difference if you set it to "on" in the service menu. I'm going to mess with it tonight once I get my new C8 setup.
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post #11612 of 21726 Old 01-16-2019, 04:30 PM
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Has anyone heard if LG is going to add HDR10+ to the OLED line? Also curious if they do, will they be able to do a firmware update to current models?
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post #11613 of 21726 Old 01-16-2019, 04:34 PM
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Quote:
Originally Posted by LG Electronics View Post
@Mininous , we hate to hear about the image retention on your OLEDC8. Even though this does affect a small percentage of OLED users, LG is working with customers to see what can be done to address the situation. For personalized help please check out the following link: oled.lgsupport.com/hc/en-us/requests/new

Nice to see a LG rep (?) on the forum...
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post #11614 of 21726 Old 01-16-2019, 04:35 PM
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^I dont think they would do it or have shown any interest in it since LG employs it's own mapping for HDR10.
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post #11615 of 21726 Old 01-16-2019, 06:14 PM
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Originally Posted by Cam1977 View Post
^I dont think they would do it or have shown any interest in it since LG employs it's own mapping for HDR10.

HDR10+ is Samsung's version of Dolby Vision. The only major differences seem to be that Dolby Vision can support up to 12-bit color (which is a non-feature until there are 12-bit panels) and costs more. Both support the frame-by-frame metadata to change brightness and other values.
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post #11616 of 21726 Old 01-16-2019, 06:30 PM
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^yeah that's why I mentioned that their not interested in it. Imo its splitting hairs between DV/HDR10.
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post #11617 of 21726 Old 01-16-2019, 06:40 PM
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Originally Posted by totaddy View Post
I am considering 65 C8. But 80-90% of content that i watch are movies and video files that have black bars top/bottom or left/right. 10-20% content is fullscreen movies and games. Pixels in corners will be shut off most of the time, which means that they wont be used as much as the rest of the screen. How long do you think it would take that i start seeing brighter corners (due to low wear) in games and fullscreen material?

I watch stuff mostly at night (about 6 days a week) so brightness wont be ramped up.
Rtings did a year long test and black bars have zero effect on the TV you have nothing to worry about.

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post #11618 of 21726 Old 01-16-2019, 07:48 PM
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Actually I only just recently decided I like Warm1 in technicolor Expert on SDR content. I think skin tones look much more natural.
I'm liking technicolor Expert SDR defaults on my C8 a lot so far, looks very close to my calibrated Macbook Pro. The only setting I changed was to boost the OLED light to 54. Not sure its worth trying to calibrate, it looks so good.
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post #11619 of 21726 Old 01-16-2019, 07:51 PM
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Tom Cruise and Ralph McQuarrie did a PSA against motion interpolation, now can we get them to do the same inside Hollywood against elevated black levels? It's such a terrible look for movies, what kind of "artistic decision" is it to deliberately make the movie look worse in dark scenes?
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post #11620 of 21726 Old 01-16-2019, 08:10 PM
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All - I’ve been watching some of the Marvel shows on Netflix recently and I’ve been seeing a lot of image problems with the content in 4K. I’m assuming that the images that I’ve attached are examples of macroblocking on dark scenes?

I’ve seen this a lot with 1080p material but never with Dolby Vision. I think I read that a fix was incoming from LG but has anyone else seen this before? Any suggestions for minimizing what I’m seeing in the meantime?

Sorry for the quality of the pics (and the sideways pic) but these were taken from Daredevil on Netflix—through the built in app and the Netflix app on an Apple 4ktv.
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post #11621 of 21726 Old 01-16-2019, 08:14 PM
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Quote:
Originally Posted by hhaller View Post
All - I’ve been watching some of the Marvel shows on Netflix recently and I’ve been seeing a lot of image problems with the content in 4K. I’m assuming that the images that I’ve attached are examples of macroblocking on dark scenes?

I’ve seen this a lot with 1080p material but never with Dolby Vision. I think I read that a fix was incoming from LG but has anyone else seen this before? Any suggestions for minimizing what I’m seeing in the meantime?

Sorry for the quality of the pics (and the sideways pic) but these were taken from Daredevil on Netflix—through the built in app and the Netflix app on an Apple 4ktv.
The fake grain that these shows add in post production exacerbate the issue.
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post #11622 of 21726 Old 01-16-2019, 08:21 PM
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Originally Posted by hhaller View Post
All - I’ve been watching some of the Marvel shows on Netflix recently and I’ve been seeing a lot of image problems with the content in 4K. I’m assuming that the images that I’ve attached are examples of macroblocking on dark scenes?



I’ve seen this a lot with 1080p material but never with Dolby Vision. I think I read that a fix was incoming from LG but has anyone else seen this before? Any suggestions for minimizing what I’m seeing in the meantime?



Sorry for the quality of the pics (and the sideways pic) but these were taken from Daredevil on Netflix—through the built in app and the Netflix app on an Apple 4ktv.


What season/episode is that, bud?


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post #11623 of 21726 Old 01-16-2019, 08:31 PM
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What season/episode is that, bud?


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Screenshot of the Punisher is from the S2 finale. The other pic is from S3 episode 1, about 14 minutes in.
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post #11624 of 21726 Old 01-16-2019, 08:34 PM
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Quote:
Originally Posted by hhaller View Post
All - I’ve been watching some of the Marvel shows on Netflix recently and I’ve been seeing a lot of image problems with the content in 4K. I’m assuming that the images that I’ve attached are examples of macroblocking on dark scenes?

I’ve seen this a lot with 1080p material but never with Dolby Vision. I think I read that a fix was incoming from LG but has anyone else seen this before? Any suggestions for minimizing what I’m seeing in the meantime?

Sorry for the quality of the pics (and the sideways pic) but these were taken from Daredevil on Netflix—through the built in app and the Netflix app on an Apple 4ktv.
For the sake of comparison I just looked at the same scenes on my Kuro - flawless. Geez.

I just finished watching Hill House and season 2 of Iron Fist a short while ago —both in Dolby Vision—and never saw that.
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post #11625 of 21726 Old 01-16-2019, 09:40 PM
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Originally Posted by asantiago83 View Post
. How did you get the main board and panel replaced by LG ? What issue’s did you have with your set ?
I’m having really noise/macro blocking during dark scenes as well as flickering at times during dark scenes as well. Being talking to LG but not getting anywhere with them.
I was having flickering brightness on the left hand side of the screen in normal viewing content.
I sent them recordings of it from my phone via Messenger and they looked at them.
I can still see it now a little.
I will wait till its run in though and take it from there.
I am in the UK, not sure where you are.
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post #11626 of 21726 Old 01-16-2019, 10:49 PM
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@crazepharmacist my experience with both I would say no. While the shows you mentioned look excellent in amazon, Netflix has a few of it's own...a good example being Altered Carbon, or Lost in Space to name a few. The good news is that their is plenty of content now as opposed to just a couple years ago.

Hard disks imo will imo always offer the better option, but streaming is not to far behind. As time moves on, I'm more sold on streaming since its really more convenient, and alot of the new 4k blu ray players are incredibly sensitive and are prone to freezing.
Does netflix add a grainy filter though? Amazon doesn't seem to be grainy at all, very clear. Netflix on the other hand...
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post #11627 of 21726 Old 01-16-2019, 10:49 PM
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post #11628 of 21726 Old 01-16-2019, 10:52 PM
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Does netflix add a grainy filter though? Amazon doesn't seem to be grainy at all, very clear. Netflix on the other hand...
Some shows on Netlix are like that and nothing one can do about it. You go from extremely grainy to almost flawless.
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post #11629 of 21726 Old 01-17-2019, 03:15 AM
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The marvel shows are the worst
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post #11630 of 21726 Old 01-17-2019, 05:30 AM
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Does anyone use a brightness of 49 with hdr content? I find my clouding in certain dark content thing completely goes away if I move brightness to 49. Of course, Im probably hurting the overall picture quality as a result... or is it possible the panel variance would tolerate 49 well enough?
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post #11631 of 21726 Old 01-17-2019, 05:34 AM
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Does anyone use a brightness of 49 with hdr content? I find my clouding in certain dark content thing completely goes away if I move brightness to 49. Of course, Im probably hurting the overall picture quality as a result... or is it possible the panel variance would tolerate 49 well enough?
I do that too.
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post #11632 of 21726 Old 01-17-2019, 05:39 AM
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My Brightness adjustment went from 55 to 51 over the first 300 hours using a Test Disk and Test Patterns on a USB Stick. This is on my Display they are all different.
I think you will find that the settings all change alot during the first 300 hours. I could see verifiable change by meter and pattern generator for the first 400 hours.

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post #11633 of 21726 Old 01-17-2019, 05:56 AM
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I'm also close to 300 hours and had to adjust brightness by 4 points. I'm using R Masciola's disc for HDR and AVS.709 for SDR.


Just reinforces the advice that you need to wait if you plan on paying for calibration.
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post #11634 of 21726 Old 01-17-2019, 06:51 AM
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Originally Posted by bobkat007 View Post
https://1drv.ms/f/s!AoULwacw8Ndygo1IoO_QDN1xmf1f0g

Would like some input on these images taken of Directv network shows. Since I was able to freeze the TV to take the picture, I am assuming the issues are not caused by TV processing speed. I think the issues are one of the tv dithering a highly compressed media stream, resulting in macro blocking(is this the correct term?).

I can minimize the problem by moving the brightness setting down a bit from 50, or up a bit from 50. Never the same adjustment though, will vary depending upon what channel, and/or show I am watching.

If the cause is a highly compressed stream, why does it not look nearly as bad on my LCD TV?
I did not get any feedback on the attached display issues in my link. So many folks here know a lot about these issues, please take the time to look and give whatever thoughts you might have. Really trying to better understand 'terminology', and 'causes', not nearly as up-to-date as I want to be.
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post #11635 of 21726 Old 01-17-2019, 06:58 AM
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Originally Posted by hhaller View Post
All - I’ve been watching some of the Marvel shows on Netflix recently and I’ve been seeing a lot of image problems with the content in 4K. I’m assuming that the images that I’ve attached are examples of macroblocking on dark scenes?

I’ve seen this a lot with 1080p material but never with Dolby Vision. I think I read that a fix was incoming from LG but has anyone else seen this before? Any suggestions for minimizing what I’m seeing in the meantime?

Sorry for the quality of the pics (and the sideways pic) but these were taken from Daredevil on Netflix—through the built in app and the Netflix app on an Apple 4ktv.
That's exactly my problem. And I don't see it on my LCD set.
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post #11636 of 21726 Old 01-17-2019, 07:54 AM
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That's exactly my problem. And I don't see it on my LCD set.
On reddit there is a thread dealing specifically with this issue and allegedly Vincent Teoh and the rtings crew have been alerted to this. I was told in another thread that a fix is incoming this Spring but who knows.


Sorry if I'm re-hashing information that has already been known around here. When I bought my C8 several months ago I came here with this issue and the consensus opinion was content problem...I guess not. I hope LG comes through with a fix.
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post #11637 of 21726 Old 01-17-2019, 07:59 AM
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Originally Posted by hhaller View Post
On reddit there is a thread dealing specifically with this issue and allegedly Vincent Teoh and the rtings crew have been alerted to this. I was told in another thread that a fix is incoming this Spring but who knows.


Sorry if I'm re-hashing information that has already been known around here. When I bought my C8 several months ago I came here with this issue and the consensus opinion was content problem...I guess not. I hope LG comes through with a fix.
Is dithering and Macro-blocking in near dark scenes the correct description of the issue?
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post #11638 of 21726 Old 01-17-2019, 08:06 AM
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Originally Posted by LG Electronics View Post
@Mininous , we hate to hear about the image retention on your OLEDC8. Even though this does affect a small percentage of OLED users, LG is working with customers to see what can be done to address the situation. For personalized help please check out the following link: oled.lgsupport.com/hc/en-us/requests/new

Thanks for listening. Yes I have the wide mark of the movie fixed on my OLED panel. And all the content, movie I watch in 16X9 1:85 I see that mark there. Just like a one-channel logo. I'm trying all of the ways the pixel refreshes manually for 1 hour, but I can not at all. after a few minutes the TV automatically switches on with the warning that the pixel refresher has been interrupted. What could be happening?
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post #11639 of 21726 Old 01-17-2019, 08:14 AM
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Originally Posted by bobkat007 View Post
Is dithering and Macro-blocking in near dark scenes the correct description of the issue?
I believe so. Macroblocking, dithering, black crush...etc.


I do see flashing in dark content as well. But I think that problem goes hand and hand with this macroblocking and crushing issue.



https://www.reddit.com/r/OLED/comments/a1h8qo/flashing_nearblack_artifacts_and_macroblocks_in/

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post #11640 of 21726 Old 01-17-2019, 09:09 AM
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Or the new 88" come out under 10K...lol, ya right......


I think the 88” will be affordable in a few years (and even better than the current iteration). At that point, front projectors could be in some serious trouble. It wasn’t so very long ago the 77” was 20k. We’re moving in the right direction, it’s a great time for a home theater hobbyist to be alive!


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