all platforms: many kms tests - incomplete - no useful logs

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1646693304?query_key=7afb2ce45466c343bd5ae1ac3bf8346d2094452e

Stdout	
Using IGT_SRANDOM=1702028576 for randomisation
Opened device: /dev/dri/card0
Starting subtest: force-connector-state

Stderr	
Starting subtest: force-connector-state

Dmesg	
<6> [74.429639] [IGT] kms_force_connector_basic: executing
<7> [74.436943] i915 0000:00:02.0: [drm:i915_gem_open [i915]] 
<7> [74.437664] i915 0000:00:02.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x000001dc [0x000001dc]
<7> [74.438562] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling PW_2
<7> [74.438729] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling DC_off
<7> [74.438864] i915 0000:00:02.0: [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [74.438995] i915 0000:00:02.0: [drm:gen9_set_dc_state.part.0 [i915]] Setting DC state from 00 to 02
<7> [74.439615] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling always-on
<7> [74.448870] i915 0000:00:02.0: [drm:i915_gem_open [i915]] 
<7> [74.449994] [drm:status_store] [CONNECTOR:113:HDMI-A-1] force updated from 0 to 0 or reprobing
<7> [74.450025] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:113:HDMI-A-1]
<7> [74.450053] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:113:HDMI-A-1]
<7> [74.450234] i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling always-on
<7> [74.451044] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK for addr: 0050 w(1)
<7> [74.451165] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK on first message, retry
<7> [74.452203] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK for addr: 0050 w(1)
<7> [74.452704] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc