Whiskey Jack
Novice Member
I have a Denon x3400H and an LG Oled55C8PLA TV which are about 8m apart. My original 10m HDMI cable (bought in July 2014) works great, including ARC, for anything up to 1080p. However, it can't manage 2160p.
So I bought a MOSHOU optical fiber HDMI 2.1 cable via Aliexpress that works great for all ultra HD content, including HDR. Figured I'd get an optical and high spec one to future-proof as much as possible (cable needs to go in a wall eventually). The cable quality is great and it should even support eARC. And while the x3400h should do so as well, the TV does not (yet at least).
The problem is that I can't get ARC to work with the new cable. While I sometimes need to switch inputs or turn the receiver off and on for it to work with the original cable, ARC works most of the time without problems. With the new cable the receiver does detect something as it switches input to TV Audio, but no sound is then forthcoming The supplier of the new cable can't help or test my setup and suspects it is a "compatibility issue".
As there's only so much you can try with changing settings, I don't have much hope in getting ARC to work. Still, any suggestions are most welcome (is there a way to get debug logs or something?). In absence of that, are there 4K cables with ARC confirmed to work for my setup?
For reference both the TV and the receiver have the latest firmware:
LG 55C8PLA: 04.10.15, WebOS TV-version: 4.1.0-5608)
Denon X3400H: 7400-9134-6431-1084
Many thanks!
So I bought a MOSHOU optical fiber HDMI 2.1 cable via Aliexpress that works great for all ultra HD content, including HDR. Figured I'd get an optical and high spec one to future-proof as much as possible (cable needs to go in a wall eventually). The cable quality is great and it should even support eARC. And while the x3400h should do so as well, the TV does not (yet at least).
The problem is that I can't get ARC to work with the new cable. While I sometimes need to switch inputs or turn the receiver off and on for it to work with the original cable, ARC works most of the time without problems. With the new cable the receiver does detect something as it switches input to TV Audio, but no sound is then forthcoming The supplier of the new cable can't help or test my setup and suspects it is a "compatibility issue".
As there's only so much you can try with changing settings, I don't have much hope in getting ARC to work. Still, any suggestions are most welcome (is there a way to get debug logs or something?). In absence of that, are there 4K cables with ARC confirmed to work for my setup?
For reference both the TV and the receiver have the latest firmware:
LG 55C8PLA: 04.10.15, WebOS TV-version: 4.1.0-5608)
Denon X3400H: 7400-9134-6431-1084
Many thanks!