LG c9 OLED

beachBOYken · 9 May 2020 at 09:05

Grim5 said:
Does anyone know if LG fixed eARC on the c9? I believe LPCM could not pass through eARC at launch did they fix it??

Check this thread out, I don't think it's fixed yet.

https://www.avsforum.com/forum/40-o...eneral/3072900-lg-c9-earc-info-thread-53.html

Sc00p007 · 9 May 2020 at 09:53

VincentHanna said:
Make sure you are using 'Limited' range RGB under the Nvidia control panel if you have an an Nvidia GPU.

I have TV on low and nvidia set to limited. This isn't quite as pronounced a change as setting the black level incorrectly.

Grim5 · 9 May 2020 at 11:25

This is the banding I get on the C9 when the HDMI input is named "PC"

How do I fix it? I don't want to name the input "Game Console" cause then it uses 4:2:2 and looks blurry

Sc00p007 · 9 May 2020 at 12:11

Grim5 said:
This is the banding I get on the C9 when the HDMI input is named "PC"

How do I fix it? I don't want to name the input "Game Console" cause then it uses 4:2:2 and looks blurry

I'm not sure you can manually fix that banding.

Just a thought, but one thing I have noticed when investigating the hdr + gsync blacks, is that pc mode slightly elevates the lowest couple of squares on lagom lcd black level slide, maybe this could be a manifestation of this?

Edit, my testing was only using hdr mode.

Grim5 · 9 May 2020 at 12:25

Sc00p007 said:
I'm not sure you can manually fix that banding.

Just a thought, but one thing I have noticed when investigating the hdr + gsync blacks, is that pc mode slightly elevates the lowest couple of squares on lagom lcd black level slide, maybe this could be a manifestation of this?

Edit, my testing was only using hdr mode.

I think I shall just need to turn down the brightness wider as you did, it may fix it if I go down far enough

Sc00p007 · 9 May 2020 at 12:33

Grim5 said:
I think I shall just need to turn down the brightness wider as you did, it may fix it if I go down far enough

Let me know. I guess its the gamma curve that is out at near black, so the banding will stay as reducing brightness will reduce all levels, not just first 1 or 2.

Sc00p007 · 9 May 2020 at 12:57

Could somene do the following test:

In a dark room
Whilst in hdr mode in windows
Disable g sync
Look at the lagom lcd black level test
Reduce TV brightness until the first box dissapears
Enable gsync
Look at the lagom black levels again

Is box 1 now visable?

This isn't the limited/high mismatch, although it has a less pronounced but similar result.

Edit, the above is all with the input labelled pc

LuckyBenski · 9 May 2020 at 15:29

I actually don't remember being able to label inputs. Haven't turned my 2019 on for a while though.

beachBOYken · 9 May 2020 at 16:37

@MOOGLEYS

Hi I set my CX up today, trying to understand what all the settings do as some have changed slightly since my B6, I connected up my xbox direct to TV, Im guessing its similar to the C9, is there a setting I need to enable VRR?

I have selected game mode picture setting.

Thanks

MOOGLEYS · 9 May 2020 at 20:38

beachBOYken said:
@MOOGLEYS

Hi I set my CX up today, trying to understand what all the settings do as some have changed slightly since my B6, I connected up my xbox direct to TV, Im guessing its similar to the C9, is there a setting I need to enable VRR?

I have selected game mode picture setting.

Thanks

Make sure all the video settings are set up on the Xbox. When I plugged mine in the TV recognised it as an Xbox and enabled ALLM automatically. VRR is set from the Xbox video settings.

strocky · 9 May 2020 at 22:08

What’s the consensus on the CX compared to last years C9?

andy_mk3 · 9 May 2020 at 22:17

strocky said:
What’s the consensus on the CX compared to last years C9?

Next to nothing to get excited about.

Chris344 · 10 May 2020 at 09:54

strocky said:
What’s the consensus on the CX compared to last years C9?

The C9 is the one to go for given the price difference.

beachBOYken · 10 May 2020 at 13:23

MOOGLEYS said:
Make sure all the video settings are set up on the Xbox. When I plugged mine in the TV recognised it as an Xbox and enabled ALLM automatically. VRR is set from the Xbox video settings.

I leave most stuff on default/auto on the xbox, on my CX I have a setting called "enable instant game response". Is VRR/ ALLM only with a HDR source or will I get these features in SDR games as well?

MOOGLEYS · 10 May 2020 at 13:56

beachBOYken said:
I leave most stuff on default/auto on the xbox, on my CX I have a setting called "enable instant game response". Is VRR/ ALLM only with a HDR source or will I get these features in SDR games as well?

ALLM should come on every time you turn on the Xbox. I get a message come up telling me it’s enabled. It’s just the tv automatically putting the tv in game mode and turning off all the processing. VRR is set from the Xbox within display settings. Both work in either SDR or HDR games.

beachBOYken · 10 May 2020 at 14:04

MOOGLEYS said:
ALLM should come on every time you turn on the Xbox. I get a message come up telling me it’s enabled. It’s just the tv automatically putting the tv in game mode and turning off all the processing. VRR is set from the Xbox within display settings. Both work in either SDR or HDR games.

cheers, I got some message pop up saying instant game response launched and in Xbox settings I have enabled allow auto low latency mode and allow variable refresh rate.

I notice in game picture settings dynamic tone mapping is enabled it’s quite bright with it on so turned it off, there is also a something in here called HGIG.

MOOGLEYS · 10 May 2020 at 14:36

For game mode I have everything turned off on mine I think. I would presume the C10 is pretty similar to C9.

Will have a look later and see.

You should see everything on Xbox ticked except 3D....

beachBOYken · 10 May 2020 at 15:23

MOOGLEYS said:
For game mode I have everything turned off on mine I think. I would presume the C10 is pretty similar to C9.

Will have a look later and see.

You should see everything on Xbox ticked except 3D....

Yeah settings is virtually identical from C9 to C10, I have most ticked I don't think I have allow YC22? ticked though in xbox video settings, sorry for all the questions but do you use 8 bit (default) or 10 bit in the xbox settings?

MOOGLEYS · 10 May 2020 at 15:34

beachBOYken said:
Yeah settings is virtually identical from C9 to C10, I have most ticked I don't think I have allow YC22? ticked though in xbox video settings, sorry for all the questions but do you use 8 bit (default) or 10 bit in the xbox settings?

No problem mate.

I use 10 bit on mine.

beachBOYken · 10 May 2020 at 15:39

MOOGLEYS said:
No problem mate.

I use 10 bit on mine.

Cool, what about that YCC422 option in xbox video settings, I think its recommended to be disabled unless issues with HDR.