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Submitted by LAKSHMINARAYANA VUDUM @l4kshmi

Assigned to Sujaritha Sundaresan @sujaritha

Link to original bug (#111832)

Description

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6956/shard-tglb4/igt@gem_exec_suspend@basic-s3-devices.html
<6> [151.557920] Console: switching to colour dummy device 80x25
<6> [151.557958] [IGT] gem_exec_suspend: executing
<5> [151.561731] Setting dangerous option reset - tainting kernel
<6> [151.564377] [IGT] gem_exec_suspend: starting subtest basic-S3-devices
<6> [152.132921] PM: suspend entry (s2idle)
<6> [152.136389] Filesystems sync: 0.003 seconds

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6955/shard-tglb3/igt@kms_fbcon_fbt@fbc-suspend.html

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6955/shard-tglb4/igt@i915_pm_backlight@fade_with_suspend.html
<6> [515.245902] Console: switching to colour dummy device 80x25
<6> [515.245938] [IGT] i915_pm_backlight: executing
<7> [515.256706] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:282:DP-1]
<7> [515.256756] [drm:intel_dp_detect [i915]] [CONNECTOR:282:DP-1]
<7> [515.256801] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:282:DP-1] disconnected
<7> [515.257006] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:291:HDMI-A-1]
<7> [515.257036] [drm:intel_hdmi_detect [i915]] [CONNECTOR:291:HDMI-A-1]
<7> [515.257074] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:291:HDMI-A-1] disconnected
<7> [515.257529] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:276:eDP-1]
<7> [515.257575] [drm:intel_dp_detect [i915]] [CONNECTOR:276:eDP-1]
<7> [515.257619] [drm:intel_dp_print_rates [i915]] source rates: 162000, 216000, 270000, 324000, 432000, 540000
<7> [515.257648] [drm:intel_dp_print_rates [i915]] sink rates: 162000, 216000, 243000, 270000
<7> [515.257705] [drm:intel_dp_print_rates [i915]] common rates: 162000, 216000, 270000
<7> [515.258369] [drm:intel_dp_get_dsc_sink_cap [i915]] DSC DPCD: 01 11 01 00 01 00 01 80 00 01 06 00 08 00 00
<7> [515.258404] [drm:intel_dp_detect [i915]] FEC CAPABILITY: 0
<7> [515.258891] [drm:intel_dp_detect [i915]] [ENCODER:275:DDI A] MST support? port: no, sink: no, modparam: yes
<7> [515.259461] [drm:drm_add_display_info] non_desktop set to 0
<7> [515.259474] [drm:drm_add_edid_modes] ELD: no CEA Extension found
<7> [515.259476] [drm:drm_add_display_info] non_desktop set to 0
<7> [515.259513] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:276:eDP-1] probed modes :
<7> [515.259516] [drm:drm_mode_debug_printmodeline] Modeline "1920x1080": 90 214000 1920 1936 1952 2104 1080 1083 1097 1128 0x48 0xa
<7> [515.259518] [drm:drm_mode_debug_printmodeline] Modeline "1920x1080": 40 214000 1920 1936 1952 2104 1080 1083 1097 2532 0x40 0xa
<7> [515.259529] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:282:DP-1]
<7> [515.259568] [drm:intel_dp_detect [i915]] [CONNECTOR:282:DP-1]
<7> [515.259608] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:282:DP-1] disconnected
<7> [515.259633] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:291:HDMI-A-1]
<7> [515.259676] [drm:intel_hdmi_detect [i915]] [CONNECTOR:291:HDMI-A-1]
<7> [515.259721] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:291:HDMI-A-1] disconnected
<7> [515.260031] [drm:drm_mode_addfb2] [FB:299]
<7> [515.288474] [drm:i915_fifo_underrun_reset_write [i915]] Re-arming FIFO underruns on pipe A
<6> [515.288535] [IGT] i915_pm_backlight: starting subtest fade_with_suspend
<6> [515.358580] PM: suspend entry (s2idle)
<6> [515.359905] Filesystems sync: 0.001 seconds

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6955/shard-tglb5/igt@gem_softpin@noreloc-s3.html

<6> [232.562420] Console: switching to colour dummy device 80x25
<6> [232.562464] [IGT] gem_softpin: executing
<6> [232.566795] [IGT] gem_softpin: starting subtest noreloc-S3
<6> [232.646406] PM: suspend entry (s2idle)
<6> [232.650764] Filesystems sync: 0.004 seconds

Depends on

• Bug 111880