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Thread: KDE4 Compositing & Video Rendering

  1. #1

    Default KDE4 Compositing & Video Rendering


    since OpenSuse 11.1, I am running KDE4 on a Geforce 9650M GT.
    Currently i've installed V 4.2 from the FactoryRepositories and am watching Videos with xine or VLC.

    With Version 4.1.3 it was either impossible to watch videos with the opengl- or XVideo-Extension (leading into a crash of the Payer) or the Video was awfully interfered with flickering red or black checks. I cant really remember what happend to which extension, however it worked fine with "X11Video" - until I upgraded to KDE 4.2. Afterwards, the "checks" even happened to X11Video.

    All this refers to windowed videos;
    running in fullscreen works fine - except for OpenGL which keeps crashing:
    [????????] x11 video output error: X11 request 143.31 failed with error code 8:
     BadMatch (invalid parameter attributes)
    X Error of failed request:  BadMatch (invalid parameter attributes)
      Major opcode of failed request:  143 (GLX)
      Minor opcode of failed request:  31 (X_GLXCreateWindow)
      Serial number of failed request:  54
      Current serial number in output stream:  55
    libxcb: WARNING! Program tries to lock an already locked connection,
            which indicates a programming error.
            There will be no further warnings about this issue.
    In fact, this must be a problem with KDEs compositing. If turned off, the checks are gone. Especially there isnt any related debug output...

    Is there anyone who have a similar problem or a clue, why that is happening? I mean, Compiz is also a compositing windowmanager, but does not encounter that kind of problem. I guess, it even supports videorendering.

  2. #2
    Join Date
    Oct 2008

    Default Re: KDE4 Compositing & Video Rendering

    I have a general 3d performance problem (2,5fps in glxgears)on KDE 4.2 when I enable compositing.

    The weird thing is that it occurred after the last KDE factory update (102), didn't have a problem with the previous versions.

    I have disabled compositing for now...

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