+1 here on a 945GM intel graphic card: stock xorg.conf on alpha4 was making compiz very choppy. Adding the 3 suggested flags in xorg.conf (Option "AccelMethod" "EXA", Option "ExaNoComposite" "false", Option "MigrationHeuristic" "greedy"), plus setting INTEL_BATCH=1 makes everything smooth again, and XV is still working fine.
+1 here on a 945GM intel graphic card: stock xorg.conf on alpha4 was making compiz very choppy. Adding the 3 suggested flags in xorg.conf (Option "AccelMethod" "EXA", Option "ExaNoComposite" "false", Option "MigrationHeuri stic" "greedy"), plus setting INTEL_BATCH=1 makes everything smooth again, and XV is still working fine.