OLED77C3 stopped working after webOS24 firmware update

[Hellhoundsin]

Moonlight Version

1.6.25

Device Type

webOS TV

Device Model

OLED77C3PSA

Device OS

webOS24 23.20.50

Host OS

Windows

Host Software

Sunshine

Host Setup

Intel Core i7-14700KF, NVIDIA GeForce RTX 3060, 32GB RAM with Windows 11 Professional (x64) Build 22631.4460 (23H2)

Bug Description

Thank you for the great work! I've been using Moonlight for some time and gave a few donations to show my appreciation.

Moonlight is really slow since webOS24 firmware update. Then it just stopped opening and gave me an error. When I updated Moonlight, it started sending me to a Q&A telling me to reset LG Developer Mode and reinstall Moonlight. Since then this happens.

Moonlight used to work flawlessly on 3840 x 2160 - 60fps - H265 - HDR - wired connection (1Gbit). Since the tv firmware update, I can open Moonlight, but when I start streaming the entire TV gets really slow, even the config and power buttons, like some very intensive process is running. Not even stopping streaming and soft-shutting it down solves it on the short time, I usually need to unplug the tv from the power outlet. Needless to say, I'm not able to play at all this way.

I already (compulsorily) switched from Nvidia Shield streaming to Sunshine, same behavior.

The only thing that managed to let me control the host machine was decreasing the resolution to 1280 x 720 - 30fps. Just disabling H265/HDR didn't do anything good. I attached a picture of how fuzzy the image looks when I was able to connect and show Moonlight's Github:

Reproduction Steps

1. Select computer
2. Open Steam in the apps list
3. Wait for the connection
4. Freeze for a long time with everything really slow

Expected Behavior

Connecting to host computer on usual 3840 x 2160 - 60fps - H265 - HDR quality and being able to play.

[mariotaku]

Hello, does your issue match the description of #466?

[Hellhoundsin]

Thank you for the quick reply!

It looks similar, but beyond the magic cursor unresponsiveness, Moonlight doesn't seem to work at all, unlike the other comments.

I tried the test build 3. Moonlight opened quicker and started loading Steam, but froze on this screen forever:

When I quit Moonlight to the LG hub, the cursor was laggy again.

Probably it's related to #466 , but somehow deeper.

EDIT: Tried to resume an already opened stream, and it froze again. When I left Moonlight, the cursor didn't seem laggy at first, but when I tried to click the Moonlight icon on LG hub, it showed the drag and drop behavior, like a long press.

[Uschi003]

Hello,

I am having the same issues as @Hellhoundsin as well. I also use an OLED77C3 and Moonlight is currently completely unusable after upgrading to webOS24 (and reinstalling dev-mode and Moonlight) with the same symptoms. Streaming at 4k only shows the first frame of my host machine and then freezes immediately. Streaming at 720p was possible without freezing, but the image looks pretty bad.

I will be happy to help if there is anything I can do or test.

[mariotaku]

Hello! My C2 board is on the way, I'll upgrade that to webOS 24 to see if I could reproduce.

Did you try to play some audio on the host while starting the stream? Can you hear the sound and will the video freeze in that case?

[mrrouge]

Hi, had the same problem, partially solved by uninstalling developer tools and reinstalling everything. Still the buggy mouse cursor is there. Thanks Mariotaku for looking into it!

[Hellhoundsin]

Did you try to play some audio on the host while starting the stream? Can you hear the sound and will the video freeze in that case?

Just tried it now. Same freezing, no sound output at all.

Steps: open Chrome on destop -> open Youtube -> put a music video -> confirm there's music playing -> confirm Sunshine is working -> turn on TV -> Enter Moonlight -> (A) -> Enter Desktop streaming -> freeze without sound -> laggy cursor when exiting

Up to "(A)" everything was fine

[Hellhoundsin]

Just an update: according to issue #466, after version 1.6.28 the cursor issue seems fixed. I tested a few times, and the cursor is responsive (although with the double cursor as expected).

On the other hand, the video still freezes when entering moonlight and nothing happens if I do anything on host computer.