Dmesg
<6> [842.873975] [IGT] kms_plane_cursor: starting dynamic subtest pipe-C-HDMI-A-4-size-64
<7> [842.874199] i915 0000:03:00.0: [drm:drm_mode_addfb2] [FB:361]
<7> [842.874550] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.875060] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.887290] i915 0000:03:00.0: [drm:intel_power_well_disable [i915]] disabling DC_off
<7> [842.887679] i915 0000:03:00.0: [drm:gen9_enable_dc5 [i915]] Enabling DC5
<7> [842.887933] i915 0000:03:00.0: [drm:gen9_set_dc_state.part.0 [i915]] Setting DC state from 00 to 01
<7> [842.897471] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.897844] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.905898] i915 0000:03:00.0: [drm:drm_mode_addfb2] [FB:365]
<7> [842.906284] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.906607] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.915307] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.915596] [drm:eb_lookup_vmas [i915]] EINVAL at eb_validate_vma:510
<7> [842.925313] i915 0000:03:00.0: [drm:intel_atomic_check [i915]] [CONNECTOR:356:HDMI-A-4] Limiting display bpp to 24 (EDID bpp 0, max requested bpp 36, max platform bpp 36)
<7> [842.925476] i915 0000:03:00.0: [drm:intel_hdmi_compute_clock [i915]] picking 8 bpc for HDMI output (pipe bpp: 24)
<7> [842.925594] i915 0000:03:00.0: [drm:intel_atomic_check [i915]] [CRTC:240:pipe C] hw max bpp: 24, pipe bpp: 24, dithering: 0
<7> [842.925724] i915 0000:03:00.0: [drm:intel_ddi_compute_config_late [i915]] [ENCODER:347:DDI TC2/PHY D] [CRTC:240:pipe C]
<7> [842.925842] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.enable (expected no, found yes)
<7> [842.925846] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.active (expected no, found yes)
<7> [842.925849] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in cpu_transcoder (expected -1, found 2)
<7> [842.925852] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in lane_count (expected 0, found 4)
<7> [842.925856] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in output_types (expected 0x00000000, found 0x00000040)
<7> [842.925859] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in framestart_delay (expected 0, found 1)
<7> [842.925862] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_hdisplay (expected 0, found 1920)
<7> [842.925865] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_htotal (expected 0, found 2200)
<7> [842.925868] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_hblank_start (expected 0, found 1920)
<7> [842.925871] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_hblank_end (expected 0, found 2200)
<7> [842.925874] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_hsync_start (expected 0, found 2008)
<7> [842.925877] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_hsync_end (expected 0, found 2052)
<7> [842.925880] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_vdisplay (expected 0, found 1080)
<7> [842.925883] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_vblank_start (expected 0, found 1080)
<7> [842.925886] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_vsync_start (expected 0, found 1084)
<7> [842.925889] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_vsync_end (expected 0, found 1089)
<7> [842.925892] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_vtotal (expected 0, found 1125)
<7> [842.925894] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_vblank_end (expected 0, found 1125)
<7> [842.925897] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_hdisplay (expected 0, found 1920)
<7> [842.925900] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_htotal (expected 0, found 2200)
<7> [842.925903] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_hblank_start (expected 0, found 1920)
<7> [842.925906] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_hblank_end (expected 0, found 2200)
<7> [842.925909] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_hsync_start (expected 0, found 2008)
<7> [842.925912] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_hsync_end (expected 0, found 2052)
<7> [842.925915] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_vdisplay (expected 0, found 1080)
<7> [842.925917] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_vblank_start (expected 0, found 1080)
<7> [842.925920] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_vsync_start (expected 0, found 1084)
<7> [842.925923] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_vsync_end (expected 0, found 1089)
<7> [842.925926] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_vtotal (expected 0, found 1125)
<7> [842.925929] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_vblank_end (expected 0, found 1125)
<7> [842.925932] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in pixel_multiplier (expected 0, found 1)
<7> [842.925935] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.flags (1) (expected 0, found 1)
<7> [842.925938] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.flags (4) (expected 0, found 4)
<7> [842.925941] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in pipe_bpp (expected 0, found 24)
<7> [842.925944] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.pipe_mode.crtc_clock (expected 0, found 148500)
<7> [842.925947] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in hw.adjusted_mode.crtc_clock (expected 0, found 148500)
<7> [842.925950] i915 0000:03:00.0: [drm] [CRTC:240:pipe C] fastset requirement not met in port_clock (expected 0, found 148500)
<7> [842.925954] i915 0000:03:00.0: [drm:intel_atomic_check [i915]] [CRTC:240:pipe C] fastset requirement not met, forcing full modeset
<7> [842.926108] i915 0000:03:00.0: [drm:skl_compute_wm [i915]] Enabled dbuf slices 0x1 -> 0x3 (total dbuf slices 0x3), mbus joined? no->no
<7> [842.926245] i915 0000:03:00.0: [drm:skl_compute_wm [i915]] [CRTC:240:pipe C] dbuf slices 0x0 -> 0x3, ddb (0 - 0) -> (0 - 2048), active pipes 0x0 -> 0x4
<7> [842.926389] i915 0000:03:00.0: [drm:skl_compute_wm [i915]] [PLANE:172:plane 1C] ddb ( 0 - 0) -> ( 0 - 2012), size 0 -> 2012
<7> [842.926515] i915 0000:03:00.0: [drm:skl_compute_wm [i915]] [PLANE:235:cursor C] ddb ( 0 - 0) -> (2012 - 2048), size 0 -> 36