igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-indfb-draw-mmap-wc - incomplete - No warnings/errors

https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_142582v1/shard-snb2/igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-indfb-draw-mmap-wc.html

Out	
Using IGT_SRANDOM=1734358559 for randomisation
Opened device: /dev/dri/card0
FBC last action not supported
Can't test PSR: no usable eDP screen.
Can't test DRRS: no usable screen.
Starting subtest: fbc-1p-offscren-pri-indfb-draw-mmap-wc
Err	
Starting subtest: fbc-1p-offscren-pri-indfb-draw-mmap-wc
Dmesg	
<6> [310.792414] Console: switching to colour dummy device 80x25
<6> [310.793046] [IGT] kms_frontbuffer_tracking: executing
<7> [310.800337] i915 0000:00:02.0: [drm:i915_gem_open [i915]] 
<7> [310.801510] i915 0000:00:02.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x000001dc [0x000001dc]
<7> [310.801872] i915 0000:00:02.0: [drm:i915_gem_open [i915]] 
<7> [310.806058] i915 0000:00:02.0: [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:64:VGA-1]
<7> [310.806086] i915 0000:00:02.0: [drm:intel_crt_detect [i915]] [CONNECTOR:64:VGA-1] force=1
<7> [310.806392] i915 0000:00:02.0: [drm:intel_crt_detect [i915]] ironlake hotplug adpa=0xf40000, result 0
<7> [310.806613] i915 0000:00:02.0: [drm:intel_crt_detect [i915]] CRT not detected via hotplug
<7> [310.807021] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus vga] NAK for addr: 0050 w(1)
<7> [310.807240] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus vga] NAK on first message, retry
<7> [310.807656] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus vga] NAK for addr: 0050 w(1)
<7> [310.807875] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
<7> [310.807881] i915 0000:00:02.0: [drm:intel_crt_get_edid [i915]] CRT GMBUS EDID read failed, retry using GPIO bit-banging
<7> [310.808100] i915 0000:00:02.0: [drm:intel_gmbus_force_bit [i915]] enabling bit-banging on i915 gmbus vga. force bit now 1
<7> [310.809348] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
<7> [310.809354] i915 0000:00:02.0: [drm:intel_gmbus_force_bit [i915]] disabling bit-banging on i915 gmbus vga. force bit now 0
<7> [310.809573] i915 0000:00:02.0: [drm:intel_crt_detect_ddc [i915]] CRT not detected via DDC:0x50 [no valid EDID found]