>> pcie_aspm=force i915.i915_enable_rc6=1 i915.lvds_downclock=1 >> i915.i915_enable_fbc=1 > > Interesting as now I'm using RHEL 6.3 on T400. > Would that make the notebook slower? I did not notice any change in performance so far. (Tested with parallelized, offline, Java build and unit tests)