I have an AMD Ryzen 7 9800X3D 4.7GHz processor and AMD Radeon RX 9070 XT setup hooked up to a Samsung S90D as a monitor. Running Fedora KDE Plasma.

I can enable 120hz and HDR from my settings but see no way to set VRR anywhere. It works with the Playstation so I know the tv is capable. I asked AI a couple times just to get a rough idea of things I could try and tried the command

kwriteconfig5 --file kwinrc --group Compositing --key “VRR” “true”

but didn’t recieve a response so idk if this worked or not. Is this going to require installing AMD proprietary drivers? I briefly read a little about that and it looks like the process is quite a bit above my current skill level.

I saw a dev post about disabling Multi Stream Transport on the monitor but I could not find this setting on my tv anywhere so I think this may be a monitor only setting.

Any help or guidance would be greatly appreciated thank you so much in advance!

  • Vik@lemmy.worldEnglish
    16·
    2 days ago

    You don’t need proprietary drivers nor should you have to disable MST.

    If you’re using HDMI 2.1, you won’t be able to use VRR on a Linux system as the HDMI forum have blocked the AMDGPU implementation for the feature - they don’t allow FOSS implementations of HDMI 2.1 VRR

    More info here https://wiki.archlinux.org/title/Variable_refresh_rate

    • SteveTech@aussie.zone
      3·
      20 hours ago

      Intel gets around this by designing their cards with a DP to HDMI converter chip built in, perhaps that’s possible with external adaptors?

    • DanceMomsSavedMe@piefed.socialOPEnglish
      5·
      2 days ago

      Edit: Just now saw the answer in your comment above that’s a huge bummer damn the HDMI Forum but thank you so much for the answer!

      I havent seen a setting for it but on this tv if you hold down the play button it opens a game mode taskbar that says the resolution if HDR is enabled and if VRR is on or off.

      On PS you can set the settings on the playstation itself to automatically use VRR when available so when I’m not running a game it says VRR off on that game mode bar that the tv pulls up but when I start a game it automatically switches it on and says VRR On on the game mode taskbar.

      • Vik@lemmy.worldEnglish
        6·
        2 days ago

        No prob, really sorry about the situation though, I know it sucks. I’ve been looking into replacing my TVs with large PC displays with DisplayPort.

        I’m not sure if you can somehow work around the HDMI forum limitation with an active converter, but I think they’re intended to be used at the adapter side (convert HDMI output to DP).

        • artyom@piefed.socialEnglish
          3·
          2 days ago

          I just did just that. Got the Aorus FO48U (48" 4K 120Hz OLED) and it was everything I hoped for. Got it for $250 on Craigslist with <1 hour on it.

        • DanceMomsSavedMe@piefed.socialOPEnglish
          2·
          2 days ago

          I’ve looked around but just haven’t found many viable options for some I know that Alienware made one awhile back but no longer do it looks like the poster that replied to you on this comment though found a pretty sweet deal which is awesome. Just smaller than what I would be wanting.

          I want one that’s like 55"- 65" 120hz and has a display port and I haven’t been able to find a single one they’re all TVs full of spyware and no displayport options. (I have my current tv blocked on the router level from the internet)

          I’d even just settle for a smart tv as long as it just had a display port. I might just have to switch to a monitor soon to get the most of my system. I would no joke be willing to save up and pay around 3K for a 55" to 65" monitor with 120hz and a displayport with no internet access. But they just don’t seem to exist from what I’ve seen.

          • Vik@lemmy.worldEnglish
            1·
            1 day ago

            nvidia have been promoting ‘big format gaming displays’ since I want to say about 2019. Some of them reach the dimensions you specify, I just hope these are VESA adaptive sync/FreeSync capable and not all GSync Ultimate module displays (they can be made to work in VESA mode but not without issues in my experience).

            I think I’ve seen one or two obscure TV models offering DisplayPort over USB type C, it may have been from Hisense

      • juipeltje@lemmy.world
        1·
        1 day ago

        Yeah, i had the same issue when i decided to buy a LG OLED C5 as my monitor a few months ago. The silly thing is i had already heard about this being a problem before buying it but forgot about it. I ended up swapping my dualboot around and give windows the bigger SSD for all my games, since i really didn’t want to live without high refresh and vrr. I also didn’t want to return the tv because it was a better deal than any monitor at that size, plus it has more features. Pretty much had to give up linux gaming though ;(. I did a lot of research into adapters but all of them are finicky at best and still miss some features like vrr, so it is what it is.

  • Victor@lemmy.world
    131·
    2 days ago

    I can’t help here, sorry about that, but please don’t run commands that an AI gives you. At the very least I hope you checked the docs for that command and made sure you understood what it would do before running it. That should be the minimum. Ask humans first, please. 😅👍❤️

    • DanceMomsSavedMe@piefed.socialOPEnglish
      5·
      2 days ago

      I definitely did because I was super hesitant about it too but yes I will probably just direct most of my questions here and other forums in the future.

  • SteveTech@aussie.zone
    1·
    1 day ago

    I’m not sure if this is the same issue, but one of my monitors had VRR supported on a NVIDIA card, but not on an Intel card. I ended up modifying the EDID to enable extd_timg and it’s been working fine since then. I wrote a blog post a while back here.