Quantcast
Jump to content

C9 Update - 05.10.04 - Can no longer connect to Dolby


Recommended Posts

Since this update the Apple TV 4K can no longer connect to Dolby via HDMI.  Immediately prior to this update - it worked.

Now, if you attempot to connect and set it to Dolby - the screen flashes the Apple TV screen on and off - it can't stabilze.

This happened immdeiately after the update.  

Can I revert back to the prior software?  Or, can you send me a version that does not have this issue.

Link to comment
Share on other sites

I am experiencing the same thing. I was watching a show in Dolby Vision and stepped away for a bit. The tv restarted and the new software installed. Immediately after, I got the same unstable picture. I had to switch Apple TV to 4K HDR to finish watching the same show I had been watching in Dolby Vision a few minutes earlier. Very frustrating!

AppleTV 4K through a Sony STR DN 1080

Link to comment
Share on other sites

Hi, I have the exact same problem, also going through a Denon AVR.

The update broke something, always worked fine until then. I hope the issue gets to LG so they can fix it quickly but until now support blames my internet connexion (fiber lol) and refuses to acknowledge the problem...

Link to comment
Share on other sites

On the Denon, if you enable "Pass Through" of the ATV while in standby mode - you can select Dolby on the ATV and the C9 accepts.

Guessing LG made a change that affects HDMI communication with the Denon since it was working fine immediately prior to the update.

I have a ticket open with LG - they said their sofware enginners would get back in a couple of days.  If I get a resposne i'll post it here.

 

  • Thanks 1
Link to comment
Share on other sites

Having the exact same issue since i did the update today. Enabling Dolby Vision causes massiv screen flickering. Absolut desaster.

tried different cables, inputs…

LG messed it up. Unfortunalty not the first time (since half a year 4k 120hz aint working with nvidia 3000 generation. They know it. they are „working on it“.) 

i hope there will be a fix soon.

 

setup:

LG C9. 
Denon Receiver.

AppleTV 4K (2021 Version)

Link to comment
Share on other sites

I received the 5.10.04 update to my C9 today.  I am in the US.  The update immediately broke Dolby Vision where it flickers and the screen cuts out like it constantly connects and disconnects from the Dolby stream.  It is worse with 60fps content vs 24fps.  I have a 2019 nVidia Shield Pro and Panasonic UB820 running through a Sony STR DN1080 with 48gbps certified HDMI across the board.  I have had no issues with Dolby Vision until this update.  Please fix or at least let us roll back to the previous firmware.

Link to comment
Share on other sites

16 hours ago, RobNBill said:

On the Denon, if you enable "Pass Through" of the ATV while in standby mode - you can select Dolby on the ATV and the C9 accepts.

Guessing LG made a change that affects HDMI communication with the Denon since it was working fine immediately prior to the update.

I have a ticket open with LG - they said their sofware enginners would get back in a couple of days.  If I get a resposne i'll post it here.

 

Enabling pass through of the ATV, I still got a black screen after 3 minutes of watching a video. Seems random, could be every 30 secondes or every few minutes.

Link to comment
Share on other sites

LG Support is a desaster…

I reported them about the issue. They answered my with a „no reply“ E-Mail Adress and said they need proof. But i could not reply, because the e-mail doesnt allow it *facepalm*

So i contacted them again and put a link to this discussion it.

I refuse to believe that nobody at LG has an Apple TV or nvidia Shield to test this issue….

Link to comment
Share on other sites

LG needs to fix the broken Dolby Vision when connecting via an AVR. Seems that Pioneer issued an update. Connection Denon/Marantz is broken. @LG test your updates before pushing them to aTV. We do not need crapy updates. We can wait until the tests are done

  • Like 2
Link to comment
Share on other sites

If you haven’t already contacted LG you should. The more that complain the faster they’ll fix it. The wheel that squeaks get the oil. My affected receiver is a Sony STRDH790 7.2 Channel AV Receiver. My LG TV looks like crap without Dolby Vision. I even complained to the President of LG, which you can through their website.

Link to comment
Share on other sites

Same issue, but an interesting wrinkle with mine.  LG C9, same update as everyone and Dolby Vision is broken between my Apple TV 4K and Denon AVR.

what is interesting is Dolby Vision runs just fine between my Sony UHD player running through the same Denon to the same TV.  

So it has to be something specific to the LG and the Apple TV 4K (I have the 2021 Apple TV 4K by the way).

  • Like 1
Link to comment
Share on other sites

18 minutes ago, Gfeltner78 said:

Same issue, but an interesting wrinkle with mine.  LG C9, same update as everyone and Dolby Vision is broken between my Apple TV 4K and Denon AVR.

what is interesting is Dolby Vision runs just fine between my Sony UHD player running through the same Denon to the same TV.  

So it has to be something specific to the LG and the Apple TV 4K (I have the 2021 Apple TV 4K by the way).

Well shit.. like i said. Nvidia shield here.. so not specific. Works fine directly connected to my 77c9. But not working like it should while going through my Denon receiver.

Link to comment
Share on other sites

25 minutes ago, Gfeltner78 said:

Same issue, but an interesting wrinkle with mine.  LG C9, same update as everyone and Dolby Vision is broken between my Apple TV 4K and Denon AVR.

what is interesting is Dolby Vision runs just fine between my Sony UHD player running through the same Denon to the same TV.  

So it has to be something specific to the LG and the Apple TV 4K (I have the 2021 Apple TV 4K by the way).

Hi - Is your Sony output Dolby?

Link to comment
Share on other sites

Opened a case today, 19-Jun-2021, with LG support. Some additional information:

- My setup:  internet <- cat5 -> Roku Ultra HDR 4K UHD  <- HDMI -> Denon AVR-S960H <- HDMI -> LG OLED

- I'd recommend using LG chat. Email results in typical "reset this, reset that". You'll need model and serial number of TV.  Email response from LG stated that chat is only open M-F. but someone did respond today (Saturday). Open cases!

- I had the LG rep add the link to this thread to the escalation ticket.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By Roy Brown
      webOS updated, I think to 2023, on my C2 a couple of days ago. Since then the News option on the Sky News app no longer works, instead timing out. The Weather and Climate options still work, though.
      I have deleted and reloaded the Sky News app, but the problem remains.
      Does anybody have any suggestions of what I might try to get this working again, or is this something for LG, or Sky, to fix?
    • By Glamma2311
      My tv is acting strangely after there was a software update (sometime between April 10-15,2024)
      randomly turning off and on -- many times within a few minutes remote works some of the time or only certain buttons goes to a colored screen i.e. purple, yellow, light blue with no image just color sudden annoying continuous, high pitch sound like an alarm Checked and reset the cable box and called cable company. 
      Unplugged and plugged tv back in.
      Change the HDMI input
      It is becoming very frustrating. 
    • By OliverRC
      Up until a few days ago my TV and AVR have been working perfectly since I bought it.
      Zero hassles with HDMI and connectivity.
      Then I was prompted to update to the latest software version which I did and now often when I switch HDMI (running on 1) it picks up the device name, CEC works but I get “No Signal”… and then nothing.
      Just stays on “No Signal”. It is almost as if some HDMI handshake breaks and now the driver is in a broken state.
      I’ve found that if I hard power off and power on the device sometimes works but I don’t want to do that every time especially since it’s hard to get to the power.
      This really strikes me as a software issue with the latest update as absolutely nothing else has changed in my setup.
      I’ve tried:
      Different HDMI cables (high quality) Deep colour settings Reset the TV to factory default Different HDMI ports TV
      Model: OLED65G26LA / OLED65G26LA.HFBQLWK WebOS TV Version: 8.3.0.2301 Software Version: 13.30.56 AVR & Devices
      Marantz SR5015 Nvidia Shield Pro PS5
        The setup is the conventional AVR installation as shown in the attached file

       
      Has anyone else experienced this? 
      Is it possible to revert the software update?
    • By Alex
      Automatic Firmware Update
      Press the Home/Smart button on your remote to bring up your launcher bar.
      Click the Settings icon in the top-right.
      Choose the All Settings option at the bottom.
      Choose the General menu from the left.
      Scroll down, near the bottom of the list, and select About this TV.
      From here, make sure Allow automatic updates is checked, and click the Check for updates button.
      If an update is found, follow the steps on screen to download and install it.
       
       
    • By DavidSr
      We have two LG TV's that stopped connecting to our PLEX media server after the last update. TImes out saying "Checking connection speed to Raspberrypi" which the PLEX is on
      Upgraded the Mesh Routers before trying anything, still only the PLEX app doesn't work
      Our other TCL TV and Roku and TIVO still work with Plex, so this is only the LG TV's that can't connect anymore.
      Another annoying error after the last update is that any Streaming app (Amazon, Netflix, and DIsney) now fall out of the app and go back to HDMI port 1 if we pause for 30 seconds.  Which we have always done for a Bathroom break or getting drinks.
×
×
  • Create New...