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    Quick update on this (forgotten ?) issue......

    Quick update on this (forgotten ?) issue... Problem still not solved !

    Now with mesa git, ddx git and 2.6.36rc3, i've been noticing :
    - using GL, video playback is quite smooth windowed or...
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    Tried KDE SC 4.5 (i am running kde 4.4), no luck...

    Tried KDE SC 4.5 (i am running kde 4.4), no luck either, with or without kwin "vsync" parameter.

    Could someone please help me file a bug report in the right place ?

    Facts reminder :
    - with DRM...
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    I tried -vo gl while investigating. My prefered...

    I tried -vo gl while investigating. My prefered default stays -vo xv, but it doesn't seem to make a difference anyway since the environment is composited, including fullscreen playback.
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    No luck, same here with above KWin parameters,...

    No luck, same here with above KWin parameters, even with Kwin vsync "disabled", same result.

    Btw I use UnredirectFullscreen set to 'false', this is why fullscreen playback shows these symptoms.
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    Digging up the subject, sorry. With current...

    Digging up the subject, sorry.

    With current GFX components :
    mesa git
    ddx git
    either 2.6.35 mainline or cutting edge drm-radeon-testing/next/core-next..

    the issue remains, which is GL...
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    Let's keep focus. I'm just saying disabling the...

    Let's keep focus.
    I'm just saying disabling the "CRTC query" feature brings back smooth video playback. Nothing to do with CPU load btw.
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    Of course, about the above patch, I don't know...

    Of course, about the above patch, I don't know which mesa/GL/vsync features it kills as a chain reaction...
    But again I first experienced those issues when trying 2.6.35rc1 with build-in drm, a...
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    If I apply this patch to a current drm build tree...

    If I apply this patch to a current drm build tree


    video playback is now perfectly smooth again.
    So the "crtc hw id" query has definitely something to do with it.
    It confirms my suspicions...
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    Same with vblank_mode=0, even at drirc level...

    Same with vblank_mode=0, even at drirc level (using the "dri2" driver as workaround).

    By the way, how (if possible) can I extract some data to report it accurately ?
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    No chances on that matter ? Again, this is not...

    No chances on that matter ?
    Again, this is not "terribly" annoying, but compared to uncomposited ( no GL ) playback there's definitely something wrong with "motion smoothness"

    Should I file a bug...
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    I'm running mesa / drm / ddx from git. When...

    I'm running mesa / drm / ddx from git.

    When compositing disabled or full screen unredirected, these "frame stall / drop" artifacts are only present through GL output (-vo gl)
    If kwin compositing...
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    Sync & swap / vsync video playback issues

    Hi,

    Prior to 2.6.35 sync & swap commits ( I guess ), video playback with or without compositing was tearfree and perfectly smooth.

    Now from these commits, my viewer's feeling is that the...
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    Thanks a lot for the detailed explanation, though...

    Thanks a lot for the detailed explanation, though a bit off my knowledge.

    That may explain why dynpm was smooth when the engine clock alone was tweaked.
    For now i'll stick to profile=auto.
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    OK for the battery/ac switch. However, closing...

    OK for the battery/ac switch. However, closing the lid doesn't seem to change the clocks (checking through ssh).

    Besides, "dynpm" still introduces lots of flicker and micro-freezes, but doesn't...
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    Not sure auto even switches anything when AC is...

    Not sure auto even switches anything when AC is on.
    Here with 2.6.35rc4 + drm-radeon-testing, GPU is running at full blast as long as power is plugged.

    On the other hand, "dynpm" was working...
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    What struck me in the early days of EXA were...

    What struck me in the early days of EXA were lacks in desktop responsiveness. With XAA and shadowfb, it's always been fast and sharp with much less CPU load.
    This said, being just an end user, i'm...
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    I've had a chance to test a laptop with a 5xxx...

    I've had a chance to test a laptop with a 5xxx series card.
    And honestly i've been... well... surprised.

    Modesetting works and Xorg fallbacks to shadowfb which is quite efficient in 2D desktop...
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    Actually with an uptodate stack on r700, KDE4...

    Actually with an uptodate stack on r700, KDE4 feels pretty sharp.
    Still remains, in some specific occasions without compositing, barely noticeable redraw delays when switching windows/desktops.
    ...
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    Something similar to domain handling (GetImage) ?...

    Something similar to domain handling (GetImage) ?
    Is there still some KDE related improvements pending ? If so, do we expect them in Kernel DRM or in the DDX ?
    Just curious...
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    I'm no dev, just a happy end user... From my...

    I'm no dev, just a happy end user...

    From my humble point of view, KMS became usable after upgrading to xserver 1.7. Before that it worked, but it sucked.
    Now full HD, kwin compositing work...
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