fixme:opengl:wglQueryPbufferARB unsupported WGL_PBUFFER_LOST_ARB (need glXSelectEvent/GLX_DAMAGED work)
Arg, i didn't expect this fixme :(
I don't think we have to worry about this fixme. We can always return GL_FALSE, since that is the way the OpenGL surfaces were created.
From http://oss.sgi.com/projects/ogl-sample/registry/SGIX/pbuffer.txt:
If the GLX_PRESERVED_CONTENTS_SGIX attribute is set to False in <attrib_list>, then an "unpreserved" pbuffer is created and the contents of the pbuffer may be lost at any time. If this attribute is not specified, or if it is specified as True in <attrib_list>, then when a resource conflict occurs the contents of the pbuffer will be preserved (most likely by swapping out portions of the buffer to main memory). In either case, the client can register to receive a "buffer clobber" event which is generated when the pbuffer contents have been preserved or have been damaged. (See the event description.)
So the fixme should be fixed to always return GL_FALSE I think.
Also, there is an interesting workaround for the clicking problem as well on the Gentoo forums. Seems to be working for the majority of people (including myself). It seems to reaffirm that the problem is indeed the memory layout. http://forums.gentoo.org/viewtopic-p-2509340.html#2509340
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Aric Cyr