The MigratioHeuristic option only matters if you are using EXA. man openchrome for details. About the crash, try to add : Option "ExaNoComposite" in the Device section of xorg.conf.
The MigratioHeuristic option only matters if you are using EXA. man openchrome
for details.
About the crash, try to add :
Option "ExaNoComposite"
in the Device section of xorg.conf.