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Open ATI R600/700 Driver Gains Tiling Support

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  • #11
    No, it's not a LCD if that's what you had in mind. Hooked up is an old IBM P260, running at 85Hz in all resolutions I use.

    So VSync isn't the issue here, I think it's really some game engine setting - gonna have a look at the INIs later.

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    • #12
      Just tested color-tiling with SuperTux2 on 1280x800. I observed no regressions and performance is boosted, albeit not as much as previously reported. Depending on the scene, I get an increase from 32 to 40 or from 32 to 60 fps.

      It was really fun to see how color tiling behaves when you forget to patch mesa.

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      • #13
        The initial patch said it was KMS only, When is UMS going to be supported?

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        • #14
          Isn't radeon moving in the same direction as intel? KMS-only?

          I consider UMS deprecated and I strongly suggest to use KMS, which works fairly well - even when using stable (vs. experimental) kernels.

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          • #15
            Originally posted by Obscene_CNN View Post
            The initial patch said it was KMS only, When is UMS going to be supported?
            There are no plans to support it with UMS.

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            • #16
              Any performance boosts for the R500 cards? My ATI Radeon X1950 has been horridly slow ever since Catalyst dropped suppport for my card.

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              • #17
                aliendude, are you running with the classic Mesa HW drivers or the new Gallium3D-based ("300g") stack ? The classic HW drivers are still the default but 300g is getting close enough to becoming the default that it's probably worth giving it a try.

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                • #18
                  Originally posted by LiquidAcid View Post
                  I consider UMS deprecated and I strongly suggest to use KMS, which works fairly well - even when using stable (vs. experimental) kernels.
                  Well KMS still causes my screen to go black when I boot as soon as the radeon module loads. After I login and start x blind it comes up but my screen on my laptop flickers for about 5 minutes before it solidifies. Every benchmark I run with KMS shows a performance hit.

                  I don't think I'm going to switch to KMS anytime soon.

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                  • #19
                    Originally posted by Obscene_CNN View Post
                    Well KMS still causes my screen to go black when I boot as soon as the radeon module loads.
                    You need to have fbcon loaded or built into your kernel in order to get a console on the fbdev interface provided by the drm.

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                    • #20
                      Are these patches (tiling) in any of the git branches? I don't see them in drm-next or drm-radeon-testing

                      I'd like to test these along with the voltage setting patches, but I don't want to mess around with applying these patches manually I'm too lazy to modify my shiny PKGBUILD

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