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AMDGPU DC Patches To Test This Christmas

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  • 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...

    http://www.phoronix.com/scan.php?pag...hristmas-Queue

  • #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.

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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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