No, DRI2 solves this problem which is not the same as the 2.5 branch. You need Mesa 7.2, Xorg 1.6.99.x and a suitable DRI2-capable video driver. Incidentally, it also fixes video and OpenGL app. rendering on Metacity Xrender and Mutter and KWin4.
With DRI2, rendering contexts just work the way you'd expect.
Posted Jan 9, 2009 16:50 UTC (Fri) by daenzer (✭ supporter ✭, #7050)
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DRI2 is not a requirement for properly integrating XVideo with a compositing manager. The driver just needs to provide a textured XVideo adaptor for that (and the video player application needs to use that, obviously :).
DRI2 is indeed a requirement for properly integrating accelerated client OpenGL rendering output with a compositing manager though.