2018 LG C8-E8 Owners' Thread (No Price Talk) - Page 594 - AVS Forum | Home Theater Discussions And Reviews
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post #17791 of 19159 Old 06-02-2019, 01:48 AM
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Originally Posted by Vinz80 View Post
Thanks for the information. Yes, I know what I'm using isn't ideal, but I haven't really come across the disadvantages you mention.
On the desktop, CPU and GPU usage is still very low (the CPU and GPU stay below 30C most of the time).
Before starting a SDR game, I always disable HDR in Windows. I've made a shortcut with AutoHotkey which enables me to switch between HDR and SDR by pressing Win+H.
2160p60 is indeed limited to 8bit RGB (I'm using YCbCr444), but the dithering somehow manages to produce less banding than feeding the TV a native 10-bit signal.
I compared the CPU and GPU utilization between SDR and HDR desktop modes while playing an SDR movie in a big window (not fullscreen). I guess it could be somewhat optimized for static desktop (might even recognizes unchanged mosaic pieces of the screen if not only the completely unchanged frames in succession) or may be simply got faster over time.


PC mode has reduced precision which introduces more prominent banding in HDR mode (when compared to SDR and normal HDMI modes). In that case dithered 8bit can easily look better.
Why do you use YCC 4:4:4 though? The TV can handle Full RGB just fine and HDMI 2.0 is the smallest tube between the display panel and the GPU. That RGB->YCC conversion would add visible banding without dithering (which is unnecessary if you use RGB).
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post #17792 of 19159 Old 06-02-2019, 01:51 AM
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I've noticed really bad graininess on my 65 C8 on content on Netflix and HBO. Graininess that isn't there on my 720p Google Chromebook. I took a picture using my Pixel 2 of the DeadWood Movie, in the opening scene. You can see the graininess in the sky.

https://i.imgur.com/4Hiv09b.jpg

Is this normal?

It's very distracting. I'm wondering if this is a fault with my TV or LG? Do Sony Oled's have similar graininess?
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post #17793 of 19159 Old 06-02-2019, 03:36 AM
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E8 built-in speakers resonate/rattle

I've recently bought a 55" E8 and I'm delighted with the picture. However, I'm having some issues with the sound.

In terms of audio quality I've found the built-in speakers to be fine for general use, and reasonably good for films and drama. As I have quite a large lounge I have to have the volume over 50%, and when that happens I hear a distinctive 'rattle' or vibration from the TV. This is triggered by bass notes and even some bassy voices. I can't work out whether the rattle is coming from the speaker cabinet or elsewhere on the TV. I thought it might be from the casing at the back.

It's very annoying and I can't believe that this would be acceptable for a premium TV, so perhaps something is loose, or a speaker cone has blown? I've deselected all audio processing and under 'Standard' settings I've used the equaliser to roll off 100hz and 300hz to minus 10, but the rattle still occurs.

Does anyone else have the same issue? If not then it could be classed as a fault and I may return the TV under warranty. If you've managed to cure it I'd love to know how.
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post #17794 of 19159 Old 06-02-2019, 06:22 AM
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Originally Posted by TonyAVS600 View Post
Does anyone else have the same issue? If not then it could be classed as a fault and I may return the TV under warranty.

On my C8 the right speaker does also rattle at certain bass frequencies. It's caused by vibrations as the rattle stops when I hold the speaker in place with a Q-tip. I guess to fix this one would need to open the back cover and look how the speakers are attached and where exactly the rattle noise is coming from. I didn't bother though as I almost never use the internal speakers.
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post #17795 of 19159 Old 06-02-2019, 06:51 AM
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This might surprise people, but i am keeping this tv. It has almost no macroblocking and posterisation for an oled.
I hardly ever see the horizontal bars.
A current photo taken today.
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post #17796 of 19159 Old 06-02-2019, 07:59 AM
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Are the horizontal bands on my post above an issue? I need to decide soon to get it replaced or keep it.
Thank you
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post #17797 of 19159 Old 06-02-2019, 08:06 AM
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Originally Posted by Soundizer17 View Post
Are the horizontal bands on my post above an issue? I need to decide soon to get it replaced or keep it.

Thank you
If I remember right, you were thinking the comp cycles might not be running right.

Did you try a reset through the menu and then run a comp cycle to see if it cleared up more.

Overall, you need to decide if you are happy with it, your the one that is gonna watch it

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post #17798 of 19159 Old 06-02-2019, 08:42 AM
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Didn't realize my 77" C8 would throw out this much heat. Like my old plasma.
The tv location makes it the warmest part of the house.
What to put on the side or back of it...a fan?
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post #17799 of 19159 Old 06-02-2019, 08:43 AM
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Originally Posted by Soundizer17 View Post
Are the horizontal bands on my post above an issue? I need to decide soon to get it replaced or keep it.
Thank you
Did you end up resetting the tv? Or did you find a way to see if the 4 hour cycle was running? I would say you have to find out if the cycles are doing it’s job now because if there is something wrong that’s making them not run you have to figure this out first. It could be there still not running, if you are running lots of full screen content the horizontal image retention can start fading on its own. No one can make the decision for you if your happy with it or not. If you think there is still a issue with the tv maybe it’s time to call lg.
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post #17800 of 19159 Old 06-02-2019, 09:35 AM
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^That's not normal assuming the cabinet underneath is perfectly flat, which you can't really tell from that picture. Obviously you could put just the stand itself on a perfectly flat surface and you'd know right away if the stand is bad.

I’m thinking it is the stand. Here are some photos on the back of the stand with the cover removed. The two sides of the stand appear different. On the side that sits flush ( the left side)nothing appears bent down and the whole thing sits at the same level. On the other side it appears that there are wings that have folded down

Update: I took it all down and the bottom of the stand was bent a little. I managed to push it back it in and it’s fine now
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post #17801 of 19159 Old 06-02-2019, 09:37 AM
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Originally Posted by dreaux View Post
Didn't realize my 77" C8 would throw out this much heat. Like my old plasma.
The tv location makes it the warmest part of the house.
What to put on the side or back of it...a fan?
Strange, my 77"C8 doesn't run anywhere near as warm as the plasmas I've owned.

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post #17802 of 19159 Old 06-02-2019, 09:40 AM
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Didn't realize my 77" C8 would throw out this much heat. Like my old plasma.
The tv location makes it the warmest part of the house.
What to put on the side or back of it...a fan?
Quote:
Originally Posted by tbass2k View Post
Strange, my 77"C8 doesn't run anywhere near as warm as the plasmas I've owned.
Same here. My plasma used to heat up the whole room. I've never noticed any heat issues with my 65" C8.
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post #17803 of 19159 Old 06-02-2019, 09:43 AM
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Originally Posted by crazepharmacist View Post
I've noticed really bad graininess on my 65 C8 on content on Netflix and HBO. Graininess that isn't there on my 720p Google Chromebook. I took a picture using my Pixel 2 of the DeadWood Movie, in the opening scene. You can see the graininess in the sky.

https://i.imgur.com/4Hiv09b.jpg

Is this normal?

It's very distracting. I'm wondering if this is a fault with my TV or LG? Do Sony Oled's have similar graininess?
I've watched tons of content on my 65C8 from Netflix, Hulu, etc. and never had any graininess. But then, I don't use the TV's internal apps; I use ATV 4k. Are you seeing graininess on other sources, such as OTA or cable or DVD's?
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post #17804 of 19159 Old 06-02-2019, 10:14 AM
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Originally Posted by smitty View Post
Same here. My plasma used to heat up the whole room. I've never noticed any heat issues with my 65" C8.

Ok, maybe I had it on too long. It's new and I wanted to put the hours on it.
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post #17805 of 19159 Old 06-02-2019, 10:46 AM
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Finally watched GOT! I’m on season 5. Now I see why you guys were raving about this show on this TV. Truly beautiful!
Enjoy! You've got a big treat coming at the end of season 5, esp if you have Dolby Atmos and are watching with that setup. If not, you'll be able to imagine what it would sound like (you'll know the bit when it happens!).
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post #17806 of 19159 Old 06-02-2019, 10:49 AM
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^Except that .31 and up looks much cleaner near black after you bump up the low end. This has been beaten to death.
Agreed. It's been beaten to death too many times. It's useful to have all the info in one post for the people who want that information. Sweeping statements about its effects, when it is so panel-specific, are not helpful though . EDIT: I see I'm coming to this one late and it's all pretty much resolved from what I can see.

On the bright side, we're another week closer to the eventual roll-out of the next firmware.
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post #17807 of 19159 Old 06-02-2019, 11:46 AM
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Originally Posted by crazepharmacist View Post
I've noticed really bad graininess on my 65 C8 on content on Netflix and HBO. Graininess that isn't there on my 720p Google Chromebook. I took a picture using my Pixel 2 of the DeadWood Movie, in the opening scene. You can see the graininess in the sky.



https://i.imgur.com/4Hiv09b.jpg



Is this normal?



It's very distracting. I'm wondering if this is a fault with my TV or LG? Do Sony Oled's have similar graininess?
Yes this is normal. Think of the processing going on in the TV. It will look fine on your Chromebook because at most it's what 20" screen? Even with it only having 720p resolution, Netflix or hbo is actually scaling down quality to match your Chromebook.

The TV has to scale a compressed signal to fill a 65" screen. Small drawback of having so many pixels is that the TV has to fill all of those pixels with content. That grain is the TV accommodating all the missing information. If you watch native uhd content on the c8 you will not see grain unless it is directors intent or it's an update of an older movie shot on film.


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post #17808 of 19159 Old 06-02-2019, 12:04 PM
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Didn't realize my 77" C8 would throw out this much heat. Like my old plasma.
The tv location makes it the warmest part of the house.
What to put on the side or back of it...a fan?

Wow, I hadn't even been thinking about this but now that you brought my attention to it I now notice my 77" does not generate heat at all any more like it did when new. I remember last December my 77" was like a furnace and I didn't need to turn my actual furnace on at all. The C8 put out more heat than the Pioneer Kuro plasma it replaced. Which after 12 years continued to generate a lot of heat. While I was still in a large house and I sat about three to four feet from the screen of the 77" I was sometimes as uncomfortable from the heat as when using the plasma. But now I am in a small apartment sitting 2.5 feet from the screen while typing this and do not feel any heat emanating from the C8 at all. The back of the set is cool to the touch. I have my AC on at 74 degrees F. Perhaps it's like the set's OLED break-in period that improved the picture image over time the same maybe could be said about the OLED's amount of heat generation has subsided? I don't know why but my C8 is not putting out heat like it certainly did when new. Perhaps it is because I used to have the OLED light setting at 100 and since the last four months have been using the OLED setting at lower levels and now it is at 28?
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post #17809 of 19159 Old 06-02-2019, 12:13 PM
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Wow, I hadn't even been thinking about this but now that you brought my attention to it I now notice my 77" does not generate heat at all any more like it did when new. I remember last December my 77" was like a furnace and I didn't need to turn my actual furnace on at all. The C8 put out more heat than the Pioneer Kuro plasma it replaced. That was when I was still in a large house and I sat about three to four feet from the screen of the 77". But now I am in a small apartment sitting 2.5 feet from the screen while typing this and do not feel any heat emanating from the C8 at all. The back of the set is cool to the touch. I have my AC on at 74 degrees F. Perhaps it's like the set's OLED break-in period that improved the picture image over time the same maybe could be said about the OLED's amount of heat generation has subsided? I don't know why but my C8 is not putting out heat like it certainly did when new.

Thanks, so I'm not imagining it after all....
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post #17810 of 19159 Old 06-02-2019, 12:17 PM
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Thanks, so I'm not imagining it after all....

I'm certain you are not. What OLED setting do you use in the Picture settings?

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post #17811 of 19159 Old 06-02-2019, 01:30 PM
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On the bright side, we're another week closer to the eventual roll-out of the next firmware.

Everybody sing along!
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post #17812 of 19159 Old 06-02-2019, 01:40 PM
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Strange, my 77"C8 doesn't run anywhere near as warm as the plasmas I've owned.

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Same here


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post #17813 of 19159 Old 06-02-2019, 02:26 PM
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I'm certain you are not. What OLED setting do you use in the Picture settings?

Right now I am using 'Standard' but that will be changing as I get more time to figure out what I want to do.
I think I will go back to the FAQ page and start with some calibrated settings or recommendations.

There seem to be more configurations and choices on the C8 than my Samsung Q8FN. I have had a couple of sets calibrated before but I always found them a little flat and washed out. I am sure that way was correct but I get impatient and look for pop and brightness. Sounds like I should have an LCD I guess but I have one and prefer the C8.
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post #17814 of 19159 Old 06-02-2019, 02:48 PM
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Right now I am using 'Standard' but that will be changing as I get more time to figure out what I want to do.
I think I will go back to the FAQ page and start with some calibrated settings or recommendations.

There seem to be more configurations and choices on the C8 than my Samsung Q8FN. I have had a couple of sets calibrated before but I always found them a little flat and washed out. I am sure that way was correct but I get impatient and look for pop and brightness. Sounds like I should have an LCD I guess but I have one and prefer the C8.

As I'm sure you're aware from reading the thread, picture image quality will keep fluctuating for the first 200-300 hours of use. For me it didn't seem to fully settle until ~400 hours and I am now at 2860 hours of use. I am getting mine calibrated by Jeff Meier next week when he is in the D.C. area. It takes a truly skilled calibrator to do the job and keep the pop and brightness going which I am confident Jeff will accomplish. I had only one truly satisfying calibrations in the past that was done in 2004 on my DLP. On my Kuro calibrators were less accomplished so I have this time with the C8 been specifically waiting for Jeff to be in my area. That has been a 6 month wait but it's almost over now. Meantime, I have been happy enough with the suggested settings of @chronitis and @jk82 . To keep the pop and brightness happening I have boosted my Color to 54. That may just be saturating colors some but it has been good enough to make my waiting on Jeff tolerable.

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post #17815 of 19159 Old 06-02-2019, 03:13 PM
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I am getting mine calibrated by Jeff Meier next week when he is in the D.C. area. It takes a truly skilled calibrator to do the job and keep the pop and brightness going which I am confident Jeff will accomplish.
Please post or DM me the settings once it's done so I may post it in the FAQ. I think more people would like to see some professionally calibrated settings.

Speaking of which, there was another member who had it calibrated a week or so ago and talked about some PDFs that he received from the calibrator. Would you please post it so I may put it in the FAQ?

Come on people! Learn to share!

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post #17816 of 19159 Old 06-02-2019, 03:14 PM
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Didn't realize my 77" C8 would throw out this much heat. Like my old plasma.
The tv location makes it the warmest part of the house.
What to put on the side or back of it...a fan?
did you pull all three pieces of thin film off the back side of the set??
might be a vent blocked issue
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post #17817 of 19159 Old 06-02-2019, 03:25 PM
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I'm with you calfcramp! I am sitting 2.5 feet in front of my 77" right now typing this. But that's just when I'm in PC Mode. My normal viewing is 3 feet from the screen while watching video content. eyegasm indeed!


oops, and I've got another calf cramp coming on right now too...happens a lot!
Nice, and I thought I was close to my 110" screen at 10FT......
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post #17818 of 19159 Old 06-02-2019, 03:32 PM
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Originally Posted by dreaux View Post
Right now I am using 'Standard' but that will be changing as I get more time to figure out what I want to do.
I think I will go back to the FAQ page and start with some calibrated settings or recommendations.

There seem to be more configurations and choices on the C8 than my Samsung Q8FN. I have had a couple of sets calibrated before but I always found them a little flat and washed out. I am sure that way was correct but I get impatient and look for pop and brightness. Sounds like I should have an LCD I guess but I have one and prefer the C8.
I would recommend you try the Technicolor Expert setting and keep the values at the default and give yourself a few days to get used to the picture. An accurate picture on a good OLED has plenty of pop and brightness, but sometimes we train our eyes to like something that is not accurate. Just like if you overuse salt, you can train you palate to desire too much salt and ruin the taste of your food, and you don't realize you doing that until you get off the excess salt for a certain time period.
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post #17819 of 19159 Old 06-02-2019, 03:49 PM
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Originally Posted by smitty View Post
I would recommend you try the Technicolor Expert setting and keep the values at the default and give yourself a few days to get used to the picture. An accurate picture on a good OLED has plenty of pop and brightness, but sometimes we train our eyes to like something that is not accurate. Just like if you overuse salt, you can train you palate to desire too much salt and ruin the taste of your food, and you don't realize you doing that until you get off the excess salt for a certain time period.

I absolutely agree. My general rule of thumb is to wait at least a week after making changes to give my eyes and brain time to adjust to the new settings under different light conditions and sources. That's one of the reasons why I keep all of my settings recorded in a Word doc. so I can easily see what I changed and from where.
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post #17820 of 19159 Old 06-02-2019, 04:08 PM
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Please post or DM me the settings once it's done so I may post it in the FAQ. I think more people would like to see some professionally calibrated settings.

Speaking of which, there was another member who had it calibrated a week or so ago and talked about some PDFs that he received from the calibrator. Would you please post it so I may put it in the FAQ?

Come on people! Learn to share!

I'm pretty sure you're referring to me. ChadB calibrated mine a week ago this past Friday. I wouldn't mind sharing the "before" and "after" calibration graphs and what not, but sharing the actual settings for my set wouldn't do anyone any good would it? I would think my C8's post-calibration settings could cause another owners C8 to look even worse as opposed to better due to the different variances in hardware?
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