[Bug 106024] New: [CI]igt at kms_cursor_crc@cursor-128x128-suspend - incomplete - last line i dmesg :[drm:i915_fifo_underrun_reset_write [i915]] Re-arming FIFO underruns on pipe A

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106024

            Bug ID: 106024
           Summary: [CI]igt at kms_cursor_crc@cursor-128x128-suspend -
                    incomplete - last line i dmesg
                    :[drm:i915_fifo_underrun_reset_write [i915]] Re-arming
                    FIFO underruns on pipe A
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marta.lofstedt at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_18/fi-kbl-7567u/igt@kms_cursor_crc@cursor-128x128-suspend.html

run.log
running: igt/gem_exec_suspend/basic-s4-devices

[31/75] skip: 9, pass: 22 \                   
FATAL: command execution failed
...
Completed CI_IGT_test drmtip_18/fi-kbl-7567u/14 : FAILURE
CI_IGT_test runtime 543 seconds
Rebooting fi-kbl-7567u

from dmesg:
<7>[  228.912937] [IGT] gem_exec_suspend: starting subtest basic-S4-devices
...
<7>[  236.220968] [IGT] kms_cursor_crc: executing
<7>[  236.271155] [drm:drm_helper_probe_single_connector_modes]
[CONNECTOR:79:DP-2]
<7>[  236.271194] [drm:intel_dp_detect [i915]] [CONNECTOR:79:DP-2]
<7>[  236.271207] [drm:drm_helper_probe_single_connector_modes]
[CONNECTOR:79:DP-2] disconnected
<7>[  236.271349] [drm:drm_helper_probe_single_connector_modes]
[CONNECTOR:84:HDMI-A-1]
<7>[  236.271377] [drm:intel_hdmi_detect [i915]] [CONNECTOR:84:HDMI-A-1]
<7>[  236.324829] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] timed out,
falling back to bit banging on pin 4
<7>[  236.327677] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent
adapter i915 gmbus dpc
<7>[  236.327750] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read failed,
retry using GPIO bit-banging
<7>[  236.327822] [drm:intel_gmbus_force_bit [i915]] enabling bit-banging on
i915 gmbus dpc. force bit now 1
<7>[  236.330638] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent
adapter i915 gmbus dpc
<7>[  236.330710] [drm:intel_gmbus_force_bit [i915]] disabling bit-banging on
i915 gmbus dpc. force bit now 0
<7>[  236.384690] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] timed out,
falling back to bit banging on pin 4
<7>[  236.387545] [drm:drm_dp_dual_mode_detect] DP dual mode HDMI ID:  (err -6)
<7>[  236.387555] [drm:drm_helper_probe_single_connector_modes]
[CONNECTOR:84:HDMI-A-1] disconnected
<7>[  236.387910] [drm:drm_mode_addfb2] [FB:90]
<7>[  236.388864] [drm:drm_mode_addfb2] [FB:90]
<7>[  236.389309] [drm:drm_mode_addfb2] [FB:90]
<7>[  236.389697] [IGT] kms_cursor_crc: starting subtest cursor-128x128-suspend
<7>[  236.390307] [drm:drm_mode_addfb2] [FB:117]
<7>[  236.416267] [drm:drm_mode_setcrtc] [CRTC:41:pipe A]
<7>[  236.416331] [drm:drm_mode_setcrtc] [CONNECTOR:71:DP-1]
<7>[  236.433833] [drm:drm_mode_setcrtc] [CRTC:55:pipe B]
<7>[  236.434994] [drm:drm_mode_setcrtc] [CRTC:69:pipe C]
<7>[  236.450171] [drm:i915_fifo_underrun_reset_write [i915]] Re-arming FIFO
underruns on pipe A

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