With the latest DDX on my i965 laptop, Compiz and fullscreen games appear to be showing me the back buffer being rendered to, rather than the front buffer. So I see the frontmost objects (those drawn last) flickering in and out of existence. If I run 'metacity --replace', then all updates cease, though X is still running. If I connect x11vnc to the session, I can see what is supposed to be displayed on the screen and interact will it fine over VNC. Reverting this commit fixes the problem: commit 9f54107f866a25cf670f81f7c52b8c108728c6a5 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue May 11 14:55:16 2010 +0100 dri2: Handle reference counting across page flipping 1. Instead of swapping bos, swap the entire private structure. 2. If we update the pixmap bo for the Screen, make sure we update the reference inside intel->front_buffer so that xrandr still functions. Fixes: Bug 27922 - i965: Rapidly resizing OpenGL window causes GPU to hang. https://bugs.freedesktop.org/show_bug.cgi?id=27922 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
commit 030d56279bf14d9ddd42d8fdbeaa66ef3f557b4d Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri May 14 16:53:40 2010 +0100 drm: don't overwrite the old intel->front_buffer It's now handled in the common ExchangeBuffers() path.
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