Tuesday, October 27th 2020
Bug in HDMI 2.1 Chipset May Cause Black Screen on Your Xbox Series X Console or NVIDIA GPU
A German website, Heise.de, has discovered a bug in HDMI 2.1 chipset that causes black screen issues on specific hardware. On AV chipsets sourced by Panasonic, and used by Denon, Marantz, and Yamaha HDMI 2.1 AV receivers, the chipset experiences a specific issue of a black screen. More specifically, the bug happens once you connect Microsoft's newest console, Xbox Series X, or NVIDIA's Ampere graphics cards. When connecting these sources at resolutions like 4K/120 Hz HDR and 8K/60 Hz HDR to Panasonic HDMI 2.1 chipsets, the black screen happens. This represents a major problem for every manufacturer planning to use the Panasonic HDMI 2.1 chipset in its AV receivers, meaning that the issue has to be addressed. The Audioholics website has reached out to Sound United and Yamaha to see what their responses were, and you can check them out below.
Sources:
Audioholics, Heise.de
Official Sound United Response Regarding the HDMI 2.1 Chipset BugSome new gaming source devices that support 4K/120Hz output may not work fully with Denon (or Marantz) 8K AVRs. You may discover this incompatibility issue due to a HDMI chipset mismatch between the devices. When the affected system is connected to the AVR via 8K HDMI input and set to output at 4K/120Hz, and the AVR's 4K Signal Format option is set to "8K Enhanced," you may not see the system's source video on their display, and may not hear the system's source audio processed through the AVR. This problem is only present when a display that supports 4K/120Hz is used.
We are currently investigating the issue further and will offer a permanent solution at a later date. Meanwhile, we would like to provide a couple workarounds to prevent the issue in its current state:
You can connect the system to the display directly via HDMI and use the display's ARC/eARC functionality to feed the native audio back to the AVR using the connected HDMI cable between the AVR and display. This will allow users to decode the native audio format sent from the source. With this method, the display's CEC/ARC option must be enabled as well as the AVR's HDMI Control and/or the AVR's ARC option. In the AVR, this option is located within the GUI under "Video - HDMI Setup."
Another workaround is to leave or change the source's video output to 4K/60Hz instead of 4K/120Hz until a permanent solution is available. This will ensure reliable communication between the source, the AVR and the display. The source's default is set to output at 4K/60Hz, so if no change was initiated out of the box, then nothing further needs to be done.
We apologize for this inconvenience and we are currently working tirelessly to release a permanent solution so you can enjoy the 4K/120Hz experience using the latest sources with your AVR. We will have an update soon regarding the timeline of a permanent solution. We appreciate your patience.
Official Yamaha Response Regarding the HDMI 2.1 Chipset BugAs we test and explore new gaming system capabilities and the latest HDMI specifications, we will provide guidance on our website to help new and future customers with the compatibility of our latest AV receivers. We will certainly provide you with an update in the near-term.
47 Comments on Bug in HDMI 2.1 Chipset May Cause Black Screen on Your Xbox Series X Console or NVIDIA GPU
A bug in HDMI 2.1 means there's something wrong with the spec itself. A bug in Panasonic's chip means a bug in the implementation. Big difference and your quote don't really clarify it. I'll have to read the original article, it's possible the cause wasn't actually pinpointed. But claiming "Bug in HDMI 2.1" is pretty ballsy.
As if CEC was ever properly done by any of the brands...
It really is too bad Displayport didnt catch on in the home market instead of HDMI
If anyone is being cheated here, it's the manufacturer that has to pay for a certification that doesn't actually ensure conformance.
4k/120Hz is used by at least Nvidia, AMD, Sony and Microsoft in their GPUs and consoles which are all in the progress of being released right now, so yes ists absolutely relevant!
If i had bought one of those receivers and already preordered a new Xbox and a HDMI 2.1 TV of course I would demand reparation!
It's a great system, movies sound amazing. Really hope it's just an easy firmware update
It's not like I can get any of the new hardware anyways, so I can afford to wait a bit
Sure it's a problem but not one that really matters. It's unfortunate for the few that had for some reason intended to use these modes but it should have been clear even before this that these things are still not ready to be used in that manner. This bug is proof of that, the QA never picked up on it.
I think 4k 120 ist not unrealistic in esport titles or with dlss...?
If you go onto MS's website 4K and 120 FPS are literally the first things they throw into your face when everyone knows that the only thing you'll be playing in 4K120 is some back-compat game from a decade ago at the very most.
I play a few of my games at 4K 120Hz HDR btw, notably KSP and Deep Rock Galactic. War Thunder too. I stay at or around 60 FPS amazingly.And so what? That should still work.
Example A:
Brand new games:This already invalidates your "back-compat game from a decade ago" argument.
It's like making a car that technically goes to 170 mph but engine explodes when you hit 160 and saying "But you don't hit 160+ on a daily basis".
Just as an example, promo from 2 weeks ago:
Buy LG GX 65" and get Xbox Series X for free.
Both are HDMI 2.1 capable devices, they need to work correctly out of the box.