<7>[ 54.603513] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] [ENCODER:506:DDI A/PHY A] PPS 0 turning VDD off <7>[ 54.603925] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] [ENCODER:506:DDI A/PHY A] PPS 0 PP_STATUS: 0x80000008 PP_CONTROL: 0x00000067 <7>[ 54.604127] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling DC_off <7>[ 54.604356] i915 0000:00:02.0: [drm:skl_enable_dc6 [i915]] Enabling DC6 <7>[ 54.604566] i915 0000:00:02.0: [drm:gen9_set_dc_state.part.0 [i915]] Setting DC state from 00 to 02