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Is AMD ever going to fix the critical video playback issue with Radeon HD2600 cards?

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  • #11
    First round of testing:

    This took quite a bit of time.I've tried the drivers with different kernels and with various window managers and DEs (KDE,Gnome,LXDE,Openbox,IceWM,JWM,...) and Compiz Fusion.

    9.11 runs fine.Everything works: OpenGL,3D,Compiz effects,but the 2D performance (resizing and moving windows) is extremely slow,using massive amounts of CPU time.
    Unaccelerated 'Shadow Buffer' is 100x faster for
    these operations.


    Xine
    ----
    With Xine/gXine, the video still suffers from the zoom + fat scanlines issue.The player outputs this message when started from the commandline:

    Code:
    lacing: 0
    lacing: 3
    lacing: 0
    lacing: 0
    lacing: 0
    lacing: 3
    lacing: 0
    lacing: 0
    lacing: 0
    lacing: 3
    lacing: 0
    lacing: 0
    lacing: 0
    lacing: 0
    lacing: 0
    lacing: 0
    lacing: 3
    lacing: 0
    lacing: 0
    lacing: 0
    lacing: 3
    lacing: 0
    .
    .
    .
    and so on


    MPlayer
    -------
    MPlayer plays the videos perfectly (without errors). Tried it with Xv video and OpenGL/2 output. Xv seems smoother when Compiz effects are enabled. With OpenGL output (single and multitextured),the video has occasional stuttering and uses a bit more CPU. XvMC output is not supported on ATI cards.


    Coming up: Playback tests with VLC and tests with older versions of the Catalyst driver.
    Last edited by tuxdriver; 02-14-2009, 01:40 AM.

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    • #12
      Originally posted by Spitfire View Post
      Do you think this should also happen on SP2?
      I'll do some SP2 tests later.

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      • #13
        VLC
        ----
        VLC crashed with most of the videos I tried to play (unsupported formats/containers?),but I finally found some mp4 and flv videos that would run.
        Xv works fine. Nice and smooth playback without glitches.


        Xine/gXine (cont'd)
        -------------------
        There's another problem with Xine: visualizations (like the scope and spectrum) are broken as well and tend to lock up the system/driver,forcing a hard reboot.
        Strange,cause everything works fine with legacy cards (such as the R200 Radeons) and fglrx.


        Older drivers
        -------------
        There's no difference with older drivers such as Catalyst 8.7
        Last edited by tuxdriver; 02-14-2009, 01:42 AM.

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        • #14
          Conclusion:
          -----------
          Xv (and OpenGL) video is broken with Xine/gXine,but works fine with other players.

          The other issue is windows-specific: Broken WMV video acceleration with VMR9 (renderless) on WinXP (SP3)
          Last edited by tuxdriver; 02-14-2009, 12:54 AM.

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          • #15
            I've managed to fix the bad video colors/corruption in WinXP by installing the latest Windows Media Player runtimes. But that's only half of the problem.

            The real issue is still there:
            No WMV video acceleration with the Video Mixing Renderer. It's really bad - VMR is more than 2x slower than the 'Legacy Renderer' (CPU load goes up to 100%).
            Last edited by tuxdriver; 02-14-2009, 12:50 AM.

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            • #16
              I remember reading that there was a Control Center option to enable WMV acceleration. Not sure if it is still there but can you look ?

              Older versions of the Windows Media Player are also apparently missing some flag required for WMV acceleration, not sure of the details though.

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              • #17
                Yes,the option is still there and it's enabled by default.

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                • #18
                  Just tried the latest opensource 'radeon' driver with this card and Xv playback with Xine works like a charm.
                  No garbled video / stripes, no tearing and much better 2D performance than the bug-ridden fglrx/Catalyst driver.
                  Last edited by tuxdriver; 03-10-2009, 01:52 PM.

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                  • #19
                    Looks like video acceleration on Windows is broken even with the EVR renderer.

                    There's even a warning on the Media Player Classic Home Cinema page:

                    http://mpc-hc.sourceforge.net/

                    Warning for ATI users : VC1 acceleration has been broken since the Catalyst 8.6 release. If you experience such a thing, please revert to the 8.5 build.
                    Last edited by tuxdriver; 03-10-2009, 01:58 PM.

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