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WattMan Support Coming For Radeon Polaris GPUs On Linux

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  • WattMan Support Coming For Radeon Polaris GPUs On Linux

    Phoronix: WattMan Support Coming For Radeon Polaris GPUs On Linux

    Back in 2016 AMD introduced WattMan to their Radeon Software driver to allow for fine-tuning of GPU voltage, engine clocks, memory clocks and more. An incarnation of that is now approaching their open-source Linux driver...

    http://www.phoronix.com/scan.php?pag...attMan-Polaris

  • #2
    I'm hoping this appears on Tonga too

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    • #3
      Without a GUI, it's not exactly user-friendly for someone frequently changing their WattMan settings
      Who needs a Wattman GUI for this Here in Openbox within minute i would just fire up obmenu and add these commands to right click menu

      Or elsewhere it is easy to write plugins for some panels i guess, so people can have this there easy on clickete on some picture click

      Or whatever else is userfriendly nowdays i have no idea maybe some VR VK glowing menu
      Last edited by dungeon; 02-08-2018, 08:21 AM.

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      • #4
        So glad seeing AMD's GPUs get full featured on Linux.

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        • #5
          Originally posted by dungeon View Post
          Who needs a Wattman GUI for this
          Overclockers. And people who just want to calmly customize the product. Bypassing Linux features

          Manual controls should be working at this stage it appears for Sea Islands and Volcanic Islands GPUs on AMDGPU DRM.
          But these families (GCN 1.0) do not support WattMan (in Windows)!
          Or did AMD still decide to make support for the old cards?

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          • #6
            Originally posted by mphuZ View Post
            But these families (GCN 1.0) do not support WattMan (in Windows)!
            These are not SI familes, that is CI and VI.

            SI (GCN 1.0) is Southern Islands
            CI (GCN 1.1) is Sea Islands
            VI (GCN 1.2) is Volcanic Islands

            There are other names for these like - first, second and third GCN generations or even GFXIP 6/7/8 if you like (to not mention some points of these as we would be better to talk near per asic) Polaris is 4th gen, Vega is 5th gen and so on.

            Michael seems like to put these click bait articles, when someone says Radeon™ WattMan users think of GUI of it - but this isn't that

            Or did AMD still decide to make support for the old cards?
            Simply said - what is possible to be enabled they enable.

            Maybe people here only read articles, but not patches i dunno

            Originally posted by FireBurn View Post
            I'm hoping this appears on Tonga too
            But this is Tonga as that is VI... should work on CI also it seems (these are Hawaii and Bonaire cards)

            https://lists.freedesktop.org/archiv...ry/018841.html

            Basically on any card which is up to 5 year old, but is not GCN 1.0
            Last edited by dungeon; 02-08-2018, 10:12 AM.

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            • #7
              R* 200 Series - SeaI/VI?
              AFAIK WattMan doesn't work on this series.. GCN 2nd Generation (Sea Islands)

              https://en.wikipedia.org/wiki/Graphi...lcanic_Islands)

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              • #8
                Originally posted by mphuZ View Post
                R* 200 Series - SeaI/VI?
                These series were never per generations:

                HD7xxx and HD8xxx series were mixage of VLIW5, GCN 1.0 and GCN 1.1
                R* 200 serie is mixage of VLIW5, GCN 1.0, GCN 1.1 and GCN 1.2
                R* 300 serie were mixage of GCN 1.0, GCN 1.1, GCN 1.2

                Simply said, only Bonaire and Hawaii and their variants/revisions are GCN 1.1 else is GCN 1.0, with exception of Tonga and its revisions which is GCN 1.2. and Fury that is also VI but with PI point .

                AFAIK WattMan doesn't work on this series.. GCN 2nd Generation (Sea Islands)

                https://en.wikipedia.org/wiki/Graphi...lcanic_Islands)
                It should work, just read patches there... it won't on Sea Islands APUs but on Sea Islands cards it should i think.

                It works on CI and VI, just don't work same way internally as on AI (Polaris).
                Last edited by dungeon; 02-08-2018, 11:03 AM.

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                • #9
                  It'd be interesting to see if I could lower the base voltages a bit on this here WX 7100, while I wait for an opportunity to buy Vega.

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                  • #10
                    Originally posted by microcode View Post
                    It'd be interesting to see if I could lower the base voltages a bit on this here WX 7100, while I wait for an opportunity to buy Vega.
                    I know for a fact that I can reduce the voltage of my Polaris by 0.23V in all power profiles, saving up quite a few watts and thus reducing the racket my reference RX480 emits.

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