Friday, December 13th 2024
Next-Gen HDMI Specifications to Be Announced in January Before CES 2025
The HDMI Forum confirmed the development of the next-generation HDMI standard with increased bandwidth. According to various media reports, including Videocardz and Dday, the press release from HDMI Forum indicates the possibility of new cables or refinement of existing specifications. Moreover, it could mean we will have new HDMI 2.2 specs. The current HDMI 2.1 specifications, established in 2017, provide bandwidth up to 48 Gbps and support native non-DSC configurations for 4K at 144 Hz and 8K at 30 Hz. When combined with Display Stream Compression (DSC) technology, the current standard can handle up to 10K at 120 Hz. A bandwidth increase could enable higher resolutions and refresh rates without DSC compression.
This development of new HDMI specifications is due to the emergence of other display interface standards such as DisplayPort 2.1, which offers up to 80 Gbps over UHBR20. AMD's Radeon RX 7000 series and Intel's recently launched Arc Battlemage GPUs support UHBR 13.5 while the Radeon PRO supports UHBR20. The HDMI Forum is scheduled to release these new specifications on January 6th, one day before the official CES 2025 opening event on January 7th. With the launch of NVIDIA's GeForce RTX 50 and AMD's Radeon RX 8000 series at CES 2025, it would be interesting to see if the latest graphics cards will support the HDMI 2.2 specs.
Sources:
Videocardz, Dday
This development of new HDMI specifications is due to the emergence of other display interface standards such as DisplayPort 2.1, which offers up to 80 Gbps over UHBR20. AMD's Radeon RX 7000 series and Intel's recently launched Arc Battlemage GPUs support UHBR 13.5 while the Radeon PRO supports UHBR20. The HDMI Forum is scheduled to release these new specifications on January 6th, one day before the official CES 2025 opening event on January 7th. With the launch of NVIDIA's GeForce RTX 50 and AMD's Radeon RX 8000 series at CES 2025, it would be interesting to see if the latest graphics cards will support the HDMI 2.2 specs.
34 Comments on Next-Gen HDMI Specifications to Be Announced in January Before CES 2025
For now, only the AMD Radeon PRO support DisplayPort 2.1 @UHBR20 - 80 Gbps full max speed.
I bought a DP 2.1 display, just waiting for newer GPUs now, hoping they do not go insane on the pricing
DSC is very good but I upgraded my display anyway, going with no DSC is just a nice bonus at this point, recently got a 4K oled and it had DP2.1 UHBR20
Still better than Nvidia's which doesn't support anything of the above at all.
It’s the monitor selection with DP2 that’s abysmal.
The mobile phone market mastered it and its bled into other products now.
arstechnica.com/gadgets/2024/02/hdmi-forum-to-amd-no-you-cant-make-an-open-source-hdmi-2-1-driver/
All OLED (at least the 240 ones) gaming monitors, all OLED gaming monitors with dual mode (240/480), multiple ultra wide monitors like from Samsung, are all in front of this. A big TV is suboptimal for PC usage in general, it's too big. Whereas for Console gaming it's fine.
You lose 4k@120hz, VRR and other functionality.
Intel bypassed this by using a DP to HDMI converter inside the gpu and Ngreedia doesnt even have true open source drivers.
If you want to run say ChimeraOS, (which only supports proper open source drivers) you are stuck between a rock and a hard place when using a TV.
I am curious if AMD will use the same workaround as intel with the upcoming rdna4.
A bit more info here:
www.phoronix.com/news/HDMI-2.1-OSS-Rejected
Pulling that off with Windows is a nightmare and in some case, you need to pay extra.
ChimeraOS is a clone of the SteamOS used in the Steam Deck and it works perfectly, except for this issue.
Distros are bound by the GPL and only open source drivers are accepted out of the box. some get away with the option of "Install third party drivers" but I am not entirely sure why distros like Red Hat and Fedora dont include such options out of the box. Havent found a proper 65" OLED monitor that replaces my LG TV. Please see above. Yes, but you lose VRR and if I recall correctly, HDR. AMD doesnt have such thing in Linux, only in Windows.
There is the so called AMD Pro closed source driver but the AMDGPU kernel driver IS the official AMD driver. The proprietary AMDGPU-PRO driver set provides things like OpenGL, Vulkan , OpenCL, etc., but the open source Mesa project also provides that stuff. Not entirely sure about the how or why, but as mentioned above, Valve, Red Hat and others will only ship open source drivers.
In that particular case, your hardware simply works out of the box without having to fiddle with anything.
The problems comes when you want to install and use closed source drivers.
what is worse, there are more and more PC monitors that only comes with HDMI and maybe a VGA port, but not a DP port.
Have to enable autologin.
Have to set up a proper trigger to wake up the PC just with the controller.
If you dont use Xbox Games or the Xbox app, need to disable it or it will open up when you press certain buttons.
A bunch of others that I forgot. Maybe you missed the part where I said I replaced my Xbox, so its couch gaming and its the living room TV. I dont think that replacing a console is that special and there are plenty of others that dont want a Playstation or Xbox but want the same experience on their living room. See reasons above.