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  • #31
    Yesterday I tested the Steam 2D game "Dust: An elysian tale" under Xubuntu 15.10.
    Open source from oibaf ppa: Perfectly smooth. Perfect experience.
    Catalyst 15.9: Dramatic decrease of FPS. Playable but distracting.

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    • #32
      Originally posted by Zeioth View Post
      Yesterday I tested the Steam 2D game "Dust: An elysian tale" under Xubuntu 15.10.
      Open source from oibaf ppa: Perfectly smooth. Perfect experience.
      Catalyst 15.9: Dramatic decrease of FPS. Playable but distracting.
      Does Catalyst actually work in Ubuntu 15.10 yet? Fixed packages seems currently in proposed repo.

      https://bugs.launchpad.net/ubuntu/+s...r/+bug/1493888

      Just guessing that you run llvmpipe (that is slow of course) instead of Catalyst

      But yeah DustAET is not demanding game, i guess should run even on 5 year old iGPUs with any driver.
      Last edited by dungeon; 10-29-2015, 07:32 AM.

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      • #33
        Originally posted by dungeon View Post

        You should ask about EMA, CF and SLI are obsolete

        DX12 benchmark shows AMD and Nvidia cards performing in harmony

        I don't care about the terminology - I just want my second 290x to be more than an air heater whenever I boot Linux )).

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        • #34
          Originally posted by mao_dze_dun View Post
          I don't care about the terminology - I just want my second 290x to be more than an air heater whenever I boot Linux )).
          Well then i dunno what the question is? as i think Crossfire should already work with Catalyst on Linux.

          I dont have CF setup, but info i have that should work with Catalyst, but not with opensource drivers

          Dunno how to setup that really, but this video and comments down there said even quad setups work, etc..

          Last edited by dungeon; 10-29-2015, 08:11 AM.

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          • #35
            Originally posted by mao_dze_dun View Post


            I don't care about the terminology - I just want my second 290x to be more than an air heater whenever I boot Linux )).
            I remember Arch users claiming CF setups to work and brake from time to time. IIRC it was often broken on releases with initial fresh xserver support. My last update on CF case is old, but because xserver 1.7 support still smells like initial - ie. there are problems with switching to TTY - I believe downgrading xserver is a good start.

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            • #36
              Originally posted by Vi0L0 View Post
              I remember Arch users claiming CF setups to work and brake from time to time. IIRC it was often broken on releases with initial fresh xserver support. My last update on CF case is old, but because xserver 1.7 support still smells like initial - ie. there are problems with switching to TTY - I believe downgrading xserver is a good start.

              Well A) that's way beyond my tech capabilities and B) it's not just making it work, but also being effective, i.e. have a profile. In Windows you can force CF on games that don't support it but it usually end up with worse performance than using single GPU. Also there is a painful need of Overdrive implementation or even better - somebody make MSI port Afterburner for Linux. There is a lot of additional tweaking to CF/SLI configurations. I had to do a slight downclock to keep things in the safe temp area and avoid thermal throttling. Sadly in Linux I cannot do that. I know it is a niche thing, but on the other hand - it is a basic Windows option I sorely miss whenever I boot Linux.

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              • #37
                Originally posted by humbug View Post
                None of the Steam machines have AMD graphics. There's one with Intel Iris Pro and the rest all Nvidia. AMD didn't give Valve any choice in the matter sadly, despite a few years notice...
                The final list of launch Steam Machines has only been finalized not so long ago. A big driver overhaul takes time. Obviously the plans were set in motion before the list was finalized.
                Several AMD-powered Steam devices have already been announced, among them a handheld.

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                • #38
                  Originally posted by mao_dze_dun View Post


                  Well A) that's way beyond my tech capabilities and B) it's not just making it work, but also being effective, i.e. have a profile. In Windows you can force CF on games that don't support it but it usually end up with worse performance than using single GPU. Also there is a painful need of Overdrive implementation or even better - somebody make MSI port Afterburner for Linux. There is a lot of additional tweaking to CF/SLI configurations. I had to do a slight downclock to keep things in the safe temp area and avoid thermal throttling. Sadly in Linux I cannot do that. I know it is a niche thing, but on the other hand - it is a basic Windows option I sorely miss whenever I boot Linux.
                  But you can edit Catalyst profiles on Linux too and i think Overdrive is there. Although both are not on click

                  Last edited by dungeon; 10-29-2015, 04:49 PM.

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                  • #39
                    Originally posted by dungeon View Post

                    But you can edit Catalyst profiles on Linux too and i think Overdrive is there. Although both are not on click


                    There was actually even a GUI for that that allowed max clock settings and fan profiles - both very useful. problem is I never got the damn thing to actually work. But thank you for the video, none-the-less. Maybe I'll waste a Sunday afternoon fiddling with that )).

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                    • #40
                      Originally posted by alexThunder View Post

                      Does Valve decide about third-party Steam Machine's hardware?
                      The launch partners and Machines were picked by Valve. See http://store.steampowered.com/steamos/oem

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