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Need help for debugging why performance in kwin with compositing is so bad with r300g

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  • Need help for debugging why performance in kwin with compositing is so bad with r300g

    Hello,

    I have the following problem with kwin: After loging into KDE everything is running smooth with compositing enabled. But after a while the systems becomes really slow (framerate drops from ~58 fps to ~2 fps). The CPU usage stays idle for the whole time. I suspect that there is something going wrong in the driver. At least I don't see this behavior with r600g.

    Can anybody give me some hints how to find out if this really is a driver problem?


    Best regards
    Martin
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