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I'd say there are two remaining roadblocks. First and biggest is kernel level anti-cheat frameworks as you point out. But there's also no open source HDMI 2.1 i
by MegaDeKay 9mo ago
I'd say there are two remaining roadblocks. First and biggest is kernel level anti-cheat frameworks as you point out. But there's also no open source HDMI 2.1 implementation allowed by the HDMI cartel so people like me with an AMD card max out at 4K60 even for open source games like Visual Pinball (unless you count an adapter with hacked firmware between the card and the display). NVidia and Intel get away with it because they implement the functionality in their closed source blobs.
- foresto 9mo agoIs HDMI really a roadblock to gaming when DisplayPort exists?
- PacificSpecific 9mo agoI want to play games on the same fancy lg tv I use with my consoles. I just checked and it does not appear to have displayport.
- ThatPlayer 9mo agoUp until a year or two ago, the majority of monitors (and graphic cards) used DisplayPort 1.4 and HDMI 2.1. With HDMI 2.1 (42 Gbps) having more bandwidth than the DisplayPort (26 Gbps). This is my case with my relatively new/high-end RTX 4080 and OLED monitor. So until I upgrade both, I use HDMI to be able to drive a 1440p 240hz 10-bit HDR signal @ 30 Gbps.
- wincy 9mo agoI had said I wouldn’t upgrade from my RTX 3080 until I could run “true 4K”. I finally got the 240hz 4K uncompressed but it required buying a $1300 Asus OLED monitor and the RTX 5090. It looks amazing though, even with frame gen. Monster Hunter had some particularly breathtaking HDR scenes. I think it uses DisplayPort 2.1? Even finding the cable is difficult, Microcenter didn’t have them in April and the only one that worked was the one that came with the monitor.
- zaptheimpaler 9mo agoIt's a blocker if you want to use a TV, there are almost 0 TVs with DP. This HDMI licensing crap is also the reason a Steam Deck can't output HDMI > 4K@60 unless you install Windows on it.
- eru 9mo agoAren't there some hardware dongles to translate from DP to HDMI?
- zaptheimpaler 9mo agoLast I checked, even the best ones that are high quality don't support VRR.
- ThatPlayer 9mo agoA recent one seems to work with VRR: https://www.reddit.com/r/linux_gaming/comments/1pkdfcm/ugreen_knight_the_holy_grail_of_hdmi_21_dongles/ https://www.reddit.com/r/linux_gaming/comments/1pkdfcm/ugree... DP1.4 though, so you're still going to need compression.
- charleslmunger 9mo agoYup this works but there's as of yet no HBR13.5 or better input so you're not getting full hdmi 2.1 equivalent. But if you don't care about 24 bits per pixel DSC then you can have an otherwise flawless 4k120hz experience. https://trychen.com/feature/video-bandwidth https://trychen.com/feature/video-bandwidth
- zaptheimpaler 9mo agoWow that's awesome work in that post! I've also bought a few things from UGreen now, they're great.
- MegaDeKay 9mo agoThanks for this link! I'd heard of the CableMatters dongle but this seems like a better route to go assuming the patches are accepted.
- RachelF 9mo agoThe Chinese tech manufacturers are so sick of the HDMI licencing mafia that they've developed their own replacement for it: https://www.techpowerup.com/335152/china-develops-hdmi-alternative-192-gbps-speeds-and-480-w-power-delivery https://www.techpowerup.com/335152/china-develops-hdmi-alter...
- mcv 9mo agoDoes AMD not support Display Port? I'm not an expert on this, but that sounds to me like the superior technology.
- tapoxi 9mo agoTVs don't support displayport, so it makes Linux PCs like the Steam Machine inferior console replacements if you want high refresh rates. A lot of TVs now support 4K/120hz with VRR, the PS5 and Xbox Series X also support those modes. (Some games support 120, but it's also used to present a 40hz image in a 120hz container to improve input latency for games that can't hit 60 at high graphics quality.)
- amlib 9mo agoCorrection, you can get 4K@120hz with HDMI 2.0, but you won't get full chroma 4:4:4, instead 4:2:0 will be forced. In my case I have an htpc running linux and a radeon 6600 connected via hdmi to a 4k @ 120hz capable tv, and honestly, at the sitting distance/tv size and using 2x dpi scaling you just can't tell any chroma sub-sampling is happening. It is of course a ginormous problem when on a desktop setting and even worse if you try using 1x dpi scaling. What you will lose however is the newer forms of VRR, and it may be unstable with lots of dropouts.
- krzyk 9mo agoDo consoles support anything above 60 FPS?
- tyfon 9mo agoMy PS5 can do 4k/120 hz with VRR support, not sure about the others.
- RamRodification 9mo agoAre there games running at 4k 120hz?
- fc417fc802 9mo agoThis is the first I learned of this since personally I have no need of anything over 4k@60 (that already borders on absurd in my mind). I'm curious if this is something that's likely to get reverse engineered by the community at large? Outrageous that a ubiquitous connection protocol is allowed to be encumbered in this way.
- MegaDeKay 9mo agoFor the particular use case I mentioned in my earlier post (Visual Pinball), 4k@120 is actually a pretty big deal. We often play on screens 42" and up so the 4k detail is put to good use and makes things like the instruction cards in the corners legible. But the bigger difference is the smoothness in gameplay that 120Hz gets you. The ball travels really fast so 120 Hz helps gameplay a lot while reducing lag at the same time. And because a large chunk of the playfield is static at any one time, you don't need something like a 5090 to hit 120 Hz at that resolution like you might with a triple-A shooter.
- badgersnake 9mo agoI don’t understand why they can’t support AMDPort 2.1 which coincidentally has the same connector and protocol.
- GuB-42 9mo agoThis is kind of a niche problem. It only affects people with AMD GPUs running games at over 4k60 with HDMI. Get an NVidia or stay at 60 FPS or stay at 1080p or use DisplayPort and you will be fine. It is not really a roadblock, more like a bump, and it is not the only bump by far. Some games just don't run on Linux, or quite terribly and they don't have a big enough community for people to care. Sometimes one of your pieces of hardware, maybe an exotic controller, doesn't like linux. Sometimes it is not the fault of the game at all, but you want to do something else with that PC and it isn't supported on Linux, and you don't want to dual boot. Overall, you will have less problems with gaming on Windows, especially if you don't really enjoy a trip to stackoverflow and the command line, but except for anti-cheat maybe, there is no "big" reasons, just a lot of small ones. And sure, it is improving.
- johnnyanmac 9mo ago>Get an NVidia Sadly becoming less and less an option given recent news. And if you run a laptop like me, you may not be able to choose your ports.