igt@i915_pm_dc@dc[59]-dpms - incomplete - No warnings/errors

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11611/shard-skl6/igt@i915_pm_dc@dc9-dpms.html

<6> [172.106229] Console: switching to colour dummy device 80x25
<6> [172.107075] [IGT] i915_pm_dc: executing
<7> [173.237625] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:103:DP-1]
<7> [173.237784] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:103:DP-1]
<7> [173.239836] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:103:DP-1] disconnected
<7> [173.246170] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:112:HDMI-A-1]
<7> [173.246273] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:112:HDMI-A-1]
<7> [173.300599] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
<7> [173.311834] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
<7> [173.311896] i915 0000:00:02.0: [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read failed, retry using GPIO bit-banging
<7> [173.313498] i915 0000:00:02.0: [drm:intel_gmbus_force_bit [i915]] enabling bit-banging on i915 gmbus dpb. force bit now 1
<7> [173.324471] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
<7> [173.324529] i915 0000:00:02.0: [drm:intel_gmbus_force_bit [i915]] disabling bit-banging on i915 gmbus dpb. force bit now 0
<7> [173.377545] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
<7> [173.388903] i915 0000:00:02.0: [drm:drm_dp_dual_mode_detect [drm_display_helper]] DP dual mode HDMI ID:  (err -6)
<7> [173.389049] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:112:HDMI-A-1] disconnected
<7> [173.393817] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:118:DP-2]
<7> [173.393964] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:118:DP-2]
<7> [173.395570] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:118:DP-2] disconnected
<7> [173.400034] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:124:HDMI-A-2]
<7> [173.400166] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:124:HDMI-A-2]
<7> [173.453656] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] timed out, falling back to bit banging on pin 4
<7> [173.463704] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
<7> [173.463766] i915 0000:00:02.0: [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read failed, retry using GPIO bit-banging