Join Date: May 2015
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What kind of audio encodings can I get over Optical? What about ARC?
Optical will support AC-3 (Dolby Digital 5.1), PCM 2.0, or DTS.
ARC adds support for Dolby Digital+ (up to 7.1) with Atmos metadata.
It is currently NOT POSSIBLE to get Dolby TrueHD or DTS MasterAudio (DTS-MA) from the TV to your receiver in ANY WAY SHAPE, OR FORM.
How do I figure out what the resolution of the input signal?
Move the magic remote pointer to the upper-left corner of the screen and press the OK button. This will bring up information on the current input signal. The TV will always upscale any lower resolution to 2160p.
What are the differences between all the different models?
All 2017 LG OLED models (as well as the Sony A1E) use the same 4k OLED panel from LG. The differences are in the design and audio decoding. Another difference is that only the top two models (G7 and W7) are available in 77 inches. The others are available in 55 and 65 inches. From cheapest to most expensive (not sure if these differences are 100% accurate):
- B7A - Most basic model with a wedge stand and silver bezel. Even though the B7A does not support native Atmos decoding, it can still pass lossy (DD+) Atmos over ARC
- B7/B7P/B7V - Same as the B7A but adds native Atmos decoding for the built-in speakers
- C7 - Adds a "premium aluminum stand" and black bezels
- E7 - Picture-on-glass design with integrated sound bar
- G7 - Picture-on-glass design with foldable integrated sound bar. Available in 77 inches.
- W7 - Picture-on-wall design with separate sound bar. Available in 77 inches.
Known Firmware Bugs
Most recent firmware version: 4.70.36 (US), 4.70.65 (EU), 4.70.70 (Korea)
There is now a dedicated firmware thread here: https://www.avsforum.com/forum/40-ole...2-12-17-a.html
Firmware changes (as per forum members; not as per LG)
- Fixes Youtube HDR!
Here's a good video reviewing some of the changes for 4.70.07
Official Changelog for 4.70.30 (from the Korean version)
There are also reports that LG may have added eARC (which allows uncompressed audio to be sent back along that ARC channel over HDMI), but there is no confirmation since no one seems to own a receiver (does one even exist?) that supports eARC.
Picture Defects / Oddities
Software update cannot be applied to the TV.
- For some reason the software update wasn't working on my first flash drive formatted to FAT32. I tried a different flash drive formatted to NTFS and it worked fine.
- If I had to guess, it's probably because the filename for the update file was too long for FAT32.
Youtube HDR is not working for some Youtube videos
- FIXED! in the 4.70.30 firmware!
- Videos look "washed" out with incorrect colors. To compare, try downloading the video and playing it on the TV built-in media player.
- See this post for an example of what this looks like
- Last known working firmware for this was 3.50.x
- No current workaround
PC mode + 4:4:4 Chroma + HDR is broken
- If you set an input to "PC" (through Inputs > All Inputs > Change Icon), and try to output 4:4:4 Chroma in HDR, the display locks to 8-bit color mode which causes HDR to be washed out and causes awful banding
- You can sort-of work around this by setting the SDR mode to Game mode and the HDR mode to HDR Game mode to achieve the same low input-lag, but you won't get 4:4:4 Chroma. For more details on the correct settings for this, see this post
- It's currently impossible to get 4:4:4 Chroma in HDR with low input lag
- PC mode works fine in SDR
- PC mode is broken in HDR mode even if Chroma is not forced to 4:4:4, for using a PC. There are reports that this may work for a console if set up properly
HDR Game mode is dimBitstreaming Dolby Atmos from the Xbox One to the TV results in no audio
LG has intentionally dimmed HDR Game mode (as compared to other HDR modes). LG claims this is an intentional change to the EOTF curve. You can somewhat work around this by fiddling with the "Dynamic Contrast" control.
Confusing Settings Explanation
Vertical "jailbars" on dark grey scenes
- Most visible on a 5% grey background or a panning shot in a dark scene
- There are reports that this may improve over time with use (up to a few hundred hours)
Yellow Banding visible at certain angles
- Most visible on 100% white or 100% yellow screens
- Different parts of the screen may appear more or less yellow depending on your horizontal angle to the TV
- There are reports that this may improve over time with use (up to a few dozen hours)
Automatic Brightness Limiter (ABL)
- OLED displays will automatically reduce their brightness when the content on the screen is too bright
- This is very rarely noticeable in normal content
- LG employs two different types of ABL; the first one (ABL) kicks in when the entire screen is lit up above 150 nits, the second one (ASBL) kicks in when the screen displays a static image for more than 60 seconds.
- The second type appears to be defeatable using the LG service menu, but I haven't tried it: https://www.avsforum.com/forum/40-ole...g-oled-tv.html
- An OLED setting of 35 or below (in SDR) seems to prevent ABL from kicking in all together.
Temporary Image Retention
- OLED technology is susceptible to temporary image retention where a static picture that has been displayed for more than a few minutes is temporarily visible after it is removed
- This is normal and not a reason to panic
- If the retention does not go away after a few minutes, try running a "Pixel refresher" cycle under Settings > Picture > OLED Panel Settings
- If the retention still does not go away, you may have permanent burn-in, but this is very, very rare under normal use cases
Rtings has an excellent explanation and test of this. Please refer to it here: www.rtings.com/tv/learn/permanent-image-retention-burn-in-lcd-oled
Recommended Picture Settings
How to get Chroma 4:4:4How to get low input lag for gaming/PC Use
In order to get Chroma 4:4:4 (read about it here: http://www.rtings.com/tv/learn/chroma-subsampling), you need to label an input "PC." This can be done under Inputs > All Inputs > Change Label. Once you've labelled an input "PC," all picture modes will support 4:4:4 Chroma and have low input lag.
The De-judder (dejudder) and De-blur (deblur) settings
If you're not interested in Chroma 4:4:4 and just want lowered input lag, this can be accomplished by setting the picture mode to Game or HDR Game which will reduce the input lag.
You can access these two setting if you set TruMotion to "User." Dejudder controls 30 Hz (and below) to 120 Hz motion interpolation. Deblur controls 60 Hz (down to 30 Hz) to 120 Hz motion interpolation. Both introduce the Soap Opera Effect.
@jbebel has posted an amazingly useful spreadsheet, which is a great place to start: link.
In general, the recommendation is to stick to ISF (Dark Room) for SDR viewing, and Cinema for HDR viewing. Note that the TV uses different picture modes for SDR, HDR10, and Dolby Vision. To adjust the HDR picture mode and settings, simply play something that uses the format. This will switch the TV over to the appropriate mode and allow you to adjust the picture settings.
The only settings that should be changed are Sharpness (which can be dialed down on high quality content), Noise Reduction (same). In SDR, you can also change OLED Light (which can be adjusted based on how bright your room is), and Gamma (same).
With the latest update, some members are saying that the Technicolor presets may be better than ISF (Dark Room) and Cinema.
Here are some calibration results from @sonoftumble ! Post