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AMDGPU For Linux 5.1 Tweaks The Golden Settings For Vega, Corrects Fiji Power Reading

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  • AMDGPU For Linux 5.1 Tweaks The Golden Settings For Vega, Corrects Fiji Power Reading

    Phoronix: AMDGPU For Linux 5.1 Tweaks The Golden Settings For Vega, Corrects Fiji Power Reading

    Since last week the big set of DRM driver changes has been part of the mainline kernel for Linux 5.1 while working its way to mainline now are a couple of early fixes to the AMDGPU driver...

    http://www.phoronix.com/scan.php?pag...ega-Golden-5.1

  • #2
    The reported idle power for Polaris 20 (and supposedly 10 & 30) is unfortunately still broken, doesn't go below 29W while wattmeter proves it wrong.

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    • #3
      I'm waiting for bulk moves to be enabled back for amdgpu. Is it coming in 5.1?

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      • #4
        Originally posted by debianxfce View Post
        You can not measure with a watt-meter, it is very difficult to measure the current from the motherboard pci-e connector. From the 8-pin aux power connector it is easier, but you need to measure both. 30W is realistic and I do not mind with Asus RX570, the card is silent at the fan speed 1000 rpm. Driving a 28 inch 4K monitor requires power.
        My whole system consumes 30W in idle on Windows and maybe ~35W on Linux. So yes, the 29W reported by amdgpu are totally unrealistic.

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        • #5
          I wonder what was allegedly wrong with Fiji power monitoring. I've been getting what I consider realistic numbers with my Sapphire Nitro R9 Fury. 13-15W idle, 200W with ethminer @ 31MH/s and 200-260W in demanding games. 260W is the cards default power cap. Done some measurements at the wall outlet as well and it seems to correspond well when taking into account the other components of the PC. It will be interesting to see what happens when this update lands in my distro.

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          • #6
            Why in english people say "to X from Y" instead of the opposite?

            Doesn't make sense for me as portuguese speaker, as we say "from Y to X", where Y is the initial value/position and X is new value/destination

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            • #7
              That override temperature seems too high. I thought 14/10/7nm chips couldn't withstand that much heat?

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              • #8
                Originally posted by tildearrow View Post
                That override temperature seems too high. I thought 14/10/7nm chips couldn't withstand that much heat?
                That number is for the Radeon VII specifically which has a new way to measure temperature. Traditionally, temperature was read by a probe at the edge of the chip, which will read much lower than the hottest parts of the chip, but the Radeon VII has many probes all over the chip and will display the hottest part of the chip. Actually, I don't think the fact that it has many probes all over is new, but the fact that it displays the hottest spot to the user is new. Take care not to compare apples and oranges when comparing to other GPU's.

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                • #9
                  Originally posted by andrei_me View Post
                  Why in english people say "to X from Y" instead of the opposite?

                  Doesn't make sense for me as portuguese speaker, as we say "from Y to X", where Y is the initial value/position and X is new value/destination
                  As a native English speaker, I almost always use "from X to Y", which is the same as your preferred method.

                  "To Y from X" makes sense, but it's definitely awkward to use and takes a little more mental effort for me to parse.

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                  • #10
                    Originally posted by andrei_me View Post
                    Why in english people say "to X from Y" instead of the opposite?

                    Doesn't make sense for me as portuguese speaker, as we say "from Y to X", where Y is the initial value/position and X is new value/destination
                    Eles dirigem do lado errado da estrada. O que vocĂȘ esperava?

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