Driver does not support GLX_SGI_make_current_read. This extension is required for GLX 1.3 and is therefore required to support compiz with AIGLX.
Hm, .. "compiz"/"AIGLX" works just fine with my "R100" based vido card using the "radeon" driver. I am using "Xorg" release 7.1.1 on a "Fedora development" system, and when I execute "glxinfo", then "GLX_SGI_make_current_read" is well among both the server and client options. However, "GLX version: 1.2" actually differs from version "1.3" that you require above.
Fix committed to Mesa CVS. Will be included in 6.5.2 release.
Mass version move, cvs -> git
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