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Fedora 19 Readies AMD "RadeonSI" Driver

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  • #16
    Michael , can you benchmark SI. Not these multi GPU tests you were doing so far, but simple Catalyst vs Mesa with one SI card. So we can see, where Mesa is.

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    • #17
      Originally posted by entropy View Post
      Can someone please elaborate on what the current state of GLAMOR is?
      Does it support multi-monitor configurations properly (zaphod, xinerama)?
      At least zaphod mode wasn't supported not long ago (don't know about xinerama).
      What about screen rotations? Does it work?

      Thank you!
      It still tears, I hear

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      • #18
        Originally posted by curaga View Post
        It still tears, I hear
        Question is, how severe is the tearing? Is it those kind of 'temporary' tearing which disappears once you force the display to redraw the affected portion by simply moving stuff (e.g.: a window) to the tear area?

        Or is it a more severe 'permanent' tearing that stays on for the entire session even after the display has been refreshed?

        I can live with the first, but the second one obviously makes the display unusable.
        Last edited by Sonadow; 03-30-2013, 08:40 AM.

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        • #19
          Originally posted by Sonadow View Post
          Question is, how severe is the tearing? Is it those kind of 'temporary' tearing which disappears once you force the display to redraw the affected portion by simply moving stuff (e.g.: a window) to the tear area?

          Or is it a more severe 'permanent' tearing that stays on for the entire session even after the display has been refreshed?

          I can live with the first, but the second one obviously makes the display unusable.
          I wouldn't call the first one tearing; that would be corruption or a failing damage/refresh call, if moving a window over it fixes it.

          Tearing is an incomplete update when something changes, see this example for how horizontal tearing looks like: http://community.avid.com/cfs-filesy...ng-example.jpg

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          • #20
            Originally posted by curaga View Post
            It still tears, I hear
            Hmm. Isn't that solvable with multi-buffered compositors?
            At least, wasn't that the conclusion from "some other" thread?
            Well, that probably adds some latency, but there is no free lunch, I guess.

            I'm still eagerly waiting for information about GLAMOR's status
            concerning multiple screens and screen rotations.

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            • #21
              Originally posted by entropy View Post
              Hmm. Isn't that solvable with multi-buffered compositors?
              At least, wasn't that the conclusion from "some other" thread?
              Well, that probably adds some latency, but there is no free lunch, I guess.

              I'm still eagerly waiting for information about GLAMOR's status
              concerning multiple screens and screen rotations.
              Yes, using a compositor removes tearing (assuming a proper compositor).

              I happen to use X without a compositor, so tearing in "2d mode" would seriously affect me.

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              • #22
                Originally posted by entropy View Post
                Can someone please elaborate on what the current state of GLAMOR is?
                Does it support multi-monitor configurations properly (zaphod, xinerama)?
                At least zaphod mode wasn't supported not long ago (don't know about xinerama).
                What about screen rotations? Does it work?
                !
                Rotation works fine. Not sure about zaphod.

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                • #23
                  Originally posted by curaga View Post
                  Yes, using a compositor removes tearing (assuming a proper compositor).

                  I happen to use X without a compositor, so tearing in "2d mode" would seriously affect me.
                  The only reasonable way to avoid tearing is to use a compositor.

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