I noticed that to have 3D accelerated, you had to add monitor section for each
output
try modifying xorg.conf as follow :
in the device section add :
Option "monitor-VGA1" "vga"
Option "monitor-LVDS1" "lvds"
EndSection section add :
and 2 monitor sections :
Section "Monitor"
Identifier "vga"
EndSection
Section "Monitor"
Identifier "lvds"
Option "Ignore" "true"
EndSection
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Slow rendering opengl and CPU 100% (intel gma945)
https://bugs.launchpad.net/bugs/565163
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