This needs proper enablement to avoid machine hangs, so let's just avoid it for now. Reviewed-by: Rodrigo Vivi <rodrigo.vivi at gmail.com> Signed-off-by: Eugeni Dodonov <eugeni.dodonov at intel.com> --- drivers/gpu/drm/i915/intel_display.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index cc2be0b..448f8d7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8631,6 +8631,10 @@ int intel_enable_rc6(const struct drm_device *dev) if (INTEL_INFO(dev)->gen == 5) return 0; + /* Sorry Haswell, no RC6 for you for now. */ + if (IS_HASWELL(dev)) + return 0; + /* * Disable rc6 on Sandybridge */ -- 1.7.10