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AMDGPU DC Patches To Test This Christmas

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  • #1

    AMDGPU DC Patches To Test This Christmas

    Phoronix: AMDGPU DC Patches To Test This Christmas

    For those with extra time this holiday week, AMD recently published their latest patch queue of DC "display code" updates...

    AMDGPU DC Patches To Test This Christmas - Phoronix
    http://www.phoronix.com/scan.php?page=news_item&px=AMDGPU-DC-Christmas-Queue
    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite
    Tags: None
  • #2
    Are there audio fixes and addons?

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    • #3
      Originally posted by lethalwp View Post
      Are there audio fixes and addons?
      It does not look like it, unfortunately HDMI audio remains mostly useless as it still supports only a few legacy formats (see bug https://bugs.freedesktop.org/show_bug.cgi?id=101900).

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      • #4
        No support for HCC GFX900 yet?

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        • #5
          Hopefully DC will be enabled soon by default for Polaris.

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          • #6
            I made an AUR package to build the kernel from git, with the configuration fixes for Ryzen that debianxfce posts about and also with the GCC optimization patch, enabling compilation with -march=native.

            It's called "linux-ryzen-git", but nonRyzen systems should benefit from the optimization patch too.

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            • #7
              Originally posted by ssorgatem View Post
              I made an AUR package to build the kernel from git, with the configuration fixes for Ryzen that debianxfce posts about and also with the GCC optimization patch, enabling compilation with -march=native.

              It's called "linux-ryzen-git", but nonRyzen systems should benefit from the optimization patch too.
              correct me if I am wrong, but don't the haswell optimisations perform better than the zenver1 ?

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              • #8
                Originally posted by commiethebeastie View Post
                No support for HCC GFX900 yet?
                Typo maybe ? HCC has been supported on gfx 9 since before launch time IIRC.
                Test signature

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                • #9
                  Originally posted by boxie View Post

                  correct me if I am wrong, but don't the haswell optimisations perform better than the zenver1 ?
                  For the latest GCC?

                  I don't know, but wouldn't that enable compilation with instructions not present on a Ryzen and lead to segfaults?

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                  • #10
                    Originally posted by debianxfce View Post
                    - Stereo and 5.1 PCM are working
                    Not really. In the bug report, you can hear the great quality LPCM 5.1 can give you at https://bugs.freedesktop.org/attachment.cgi?id=135979

                    Haven't found any explanation for it yet. tried with a 480, 550 and vega card. the vega seemed playing pefectly (only tried 5 minutes) while the other sounded 'bandwidth limited'.
                    at the moment i can't recommend amd cards for HTPC usage.


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