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Open-Source Radeon Graphics Have Some Improvements On Linux 3.17

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  • Open-Source Radeon Graphics Have Some Improvements On Linux 3.17

    Phoronix: Open-Source Radeon Graphics Have Some Improvements On Linux 3.17

    Early benchmarking of the Linux 3.17 kernel have indicated faster performance for AMD's open-source Linux graphics driver thanks to Radeon DRM improvements.

    http://www.phoronix.com/vr.php?view=20782

  • #2
    I guess these improvements won't help r600 anymore (or any future improvement)
    But this is great news

    Comment


    • #3
      Originally posted by edoantonioco View Post
      I guess these improvements won't help r600 anymore (or any future improvement)
      But this is great news
      Why wouldn't they? Support for uncached gart pages, for example, can have positive performance implications for all asics that support it which includes older asics.

      Comment


      • #4
        Originally posted by edoantonioco View Post
        I guess these improvements won't help r600 anymore (or any future improvement)
        But this is great news
        Several of the improvements definitely target r600 hardware (and above).

        Comment


        • #5
          It targets ONLY r600 because radeonsi is in an unusable state right now: https://bugs.freedesktop.org/show_bug.cgi?id=79980
          ## VGA ##
          AMD: X1950XTX, HD3870, HD5870
          Intel: GMA45, HD3000 (Core i5 2500K)

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          • #6
            Originally posted by darkbasic View Post
            It targets ONLY r600 because radeonsi is in an unusable state right now: https://bugs.freedesktop.org/show_bug.cgi?id=79980
            Hmmm...does this bug manifest itself as a black screen with error messages (relating to some soft lockups) imediately after you boot into your DE?

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            • #7
              Originally posted by Adriannho View Post
              Hmmm...does this bug manifest itself as a black screen with error messages (relating to some soft lockups) imediately after you boot into your DE?
              I saw this bug report for the first time on this thread, but I've been experiencing it for a while on two machines with radeonsi cards.

              Google Chrome seem to trigger it quite quickly on one machine running Gnome. The other machine is triggered less easily. This bug makes productive use of the computer much more difficult. In general, the machine which runs Gnome is triggered more easily than the machine running AwesomeWM.

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              • #8
                Hearing obout this bug is very disturbing. Is it present in the 3.16 kernel as well?

                Very worried as all the distros will likely be upgrading to 3.16 or 3.17 soon.

                Comment


                • #9
                  Originally posted by ua=42 View Post
                  Hearing obout this bug is very disturbing. Is it present in the 3.16 kernel as well?

                  Very worried as all the distros will likely be upgrading to 3.16 or 3.17 soon.
                  Every kernel release above 3.15 is affected. (we could be lucky and receive a fix prior to 3.17 final release date thouh).
                  See bug report page for details.
                  Also, you could manually install a kernel (from 3.15 above) and see if you too are affected.

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                  • #10
                    Nice to have improvements but please could one of the devs fix the flickering when uvd is changing clock speeds. Also i think it would be nice if the message in the journal is shorter when this happens.

                    Comment


                    • #11
                      Originally posted by 89c51 View Post
                      Nice to have improvements but please could one of the devs fix the flickering when uvd is changing clock speeds. Also i think it would be nice if the message in the journal is shorter when this happens.
                      Remove radeon.dpm=1 from your grub config. The dpm debugging output is only enabled when you force the dpm module option.

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                      • #12
                        Originally posted by agd5f View Post
                        Remove radeon.dpm=1 from your grub config. The dpm debugging output is only enabled when you force the dpm module option.
                        Thanks for that. Now the flickering thing

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                        • #13
                          Originally posted by 89c51 View Post
                          Thanks for that. Now the flickering thing
                          Have you opened a bug?

                          Comment


                          • #14
                            Originally posted by agd5f View Post
                            Have you opened a bug?
                            No. I don't think something like" My screen flickers when a video starts (Youtube, vimeo, vine, instagram) and uvd clocks change powerstage" would cut it in the mesa bugtracker.

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                            • #15
                              Originally posted by 89c51 View Post
                              No. I don't think something like" My screen flickers when a video starts (Youtube, vimeo, vine, instagram) and uvd clocks change powerstage" would cut it in the mesa bugtracker.
                              Why wouldn't that be a valid bug report? Make sure to attach your xorg log and dmesg output as well.

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