[Nouveau] [Bug 35930] flickering in many OpenGL applications with composition manager

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu May 19 02:37:41 PDT 2011


https://bugs.freedesktop.org/show_bug.cgi?id=35930

--- Comment #10 from Christoph Bumiller <e0425955 at student.tuwien.ac.at> 2011-05-19 02:37:41 PDT ---
I suppose that's because the DDX probably isn't the one copying out the data
too early, but compiz (using mesa).

Now, compiz' operation should be synchronized with the other GL apps by the
kernel the same way that the DDX is synchronized with them, provided that all
apps shadering a nouveau_bo emit their validation relocs properly, which they
seem to do (if the writing one didn't, you'd always have flickering even
without compiz).

That leaves me with no more ideas (where it's the hw driver's fault) for the
moment.

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