Dmesg
<6> [349.538191] Console: switching to colour dummy device 80x25
<6> [349.538439] [IGT] kms_plane_cursor: executing
<7> [349.540247] i915 0000:00:02.0: [drm:i915_gem_open [i915]]
<7> [349.541077] i915 0000:00:02.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x000001dc [0x000001dc]
<7> [349.557749] i915 0000:00:02.0: [drm:i915_gem_open [i915]]
<7> [349.562821] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:134:HDMI-A-1]
<7> [349.562829] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:134:HDMI-A-1]
<7> [349.567689] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:134:HDMI-A-1] disconnected
<7> [349.568261] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:148:DP-1]
<7> [349.568266] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:148:DP-1]
<7> [349.572710] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:148:DP-1] disconnected
<7> [349.573078] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:155:HDMI-A-3]
<7> [349.573082] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:155:HDMI-A-3]
<7> [349.577714] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:155:HDMI-A-3] disconnected
<7> [349.578074] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:134:HDMI-A-1]
<7> [349.578077] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:134:HDMI-A-1]
<7> [349.582705] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:134:HDMI-A-1] disconnected
<7> [349.582721] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:144:HDMI-A-2]
<7> [349.582727] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:144:HDMI-A-2]
<7> [349.608909] i915 0000:00:02.0: [drm:update_display_info] [CONNECTOR:144:HDMI-A-2] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
<7> [349.608926] i915 0000:00:02.0: [drm:update_display_info] [CONNECTOR:144:HDMI-A-2] Assigning EDID-1.4 digital sink color depth as 8 bpc.
<7> [349.608930] i915 0000:00:02.0: [drm:update_display_info] [CONNECTOR:144:HDMI-A-2] ELD monitor fitHeadless4k
<7> [349.608934] i915 0000:00:02.0: [drm:update_display_info] [CONNECTOR:144:HDMI-A-2] ELD size 36, SAD count 0
<7> [349.609154] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus tc1] NAK for addr: 0040 w(1)
<7> [349.609325] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus tc1] NAK on first message, retry
<7> [349.609725] i915 0000:00:02.0: [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus tc1] NAK for addr: 0040 w(1)
<7> [349.609874] i915 0000:00:02.0: [drm:drm_dp_dual_mode_detect [drm_display_helper]] DP dual mode HDMI ID: (err -6)
<7> [349.610257] [drm:drm_mode_debug_printmodeline] Modeline "1366x768": 216 268000 1366 1414 1446 1526 768 771 777 814 0x40 0x6
<7> [349.610265] [drm:drm_mode_prune_invalid] Not using 1366x768 mode: CLOCK_HIGH
<7> [349.610270] [drm:drm_mode_debug_printmodeline] Modeline "1920x1080i": 60 74250 1920 2008 2052 2200 1080 1084 1094 1125 0x40 0x15
<7> [349.610275] [drm:drm_mode_prune_invalid] Not using 1920x1080i mode: NO_INTERLACE
<7> [349.610280] [drm:drm_mode_debug_printmodeline] Modeline "1920x1080i": 60 74176 1920 2008 2052 2200 1080 1084 1094 1125 0x40 0x15
<7> [349.610284] [drm:drm_mode_prune_invalid] Not using 1920x1080i mode: NO_INTERLACE
<7> [349.610291] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:144:HDMI-A-2] probed modes :
<7> [349.610295] [drm:drm_mode_debug_printmodeline] Modeline "1920x1080": 53 139930 1920 2008 2096 2360 1080 1084 1089 1125 0x48 0x5
<7> [349.610299] [drm:drm_mode_debug_printmodeline] Modeline "4088x2304": 10 108000 4088 4152 4280 4536 2304 2305 2308 2340 0x40 0x5
<7> [349.610303] [drm:drm_mode_debug_printmodeline] Modeline "3840x2160": 15 128430 3840 3889 3921 4000 2160 2163 2169 2195 0x40 0xa
<7> [349.610306] [drm:drm_mode_debug_printmodeline] Modeline "2880x1800": 11 60000 2880 2888 2984 3040 1800 1802 1820 1845 0x40 0xa
<7> [349.610310] [drm:drm_mode_debug_printmodeline] Modeline "2560x1600": 13 60000 2560 2568 2664 2720 1600 1602 1620 1645 0x40 0xa
<7> [349.610314] [drm:drm_mode_debug_printmodeline] Modeline "2560x1440": 15 60000 2560 2568 2664 2720 1440 1442 1460 1485 0x40 0xa
<7> [349.610317] [drm:drm_mode_debug_printmodeline] Modeline "2048x1536": 17 60000 2048 2056 2152 2208 1536 1538 1556 1581 0x40 0xa
<7> [349.610321] [drm:drm_mode_debug_printmodeline] Modeline "1600x1200": 60 162000 1600 1664 1856 2160 1200 1201 1204 1250 0x40 0x5
<7> [349.610324] [drm:drm_mode_debug_printmodeline] Modeline "1680x1050": 60 146250 1680 1784 1960 2240 1050 1053 1059 1089 0x40 0x6
<7> [349.610328] [drm:drm_mode_debug_printmodeline] Modeline "1600x900": 60 108000 1600 1624 1704 1800 900 901 904 1000 0x40 0x5
<7> [349.610332] [drm:drm_mode_debug_printmodeline] Modeline "1280x1024": 75 135000 1280 1296 1440 1688 1024 1025 1028 1066 0x40 0x5
<7> [349.610335] [drm:drm_mode_debug_printmodeline] Modeline "1360x768": 60 84963 1366 1431 1567 1776 768 771 781 798 0x0 0x6
<7> [349.610339] [drm:drm_mode_debug_printmodeline] Modeline "1360x768": 20 25190 1360 1368 1464 1520 768 770 788 813 0x40 0xa
<7> [349.610342] [drm:drm_mode_debug_printmodeline] Modeline "1280x800": 60 83500 1280 1352 1480 1680 800 803 809 831 0x40 0x6
<7> [349.610346] [drm:drm_mode_debug_printmodeline] Modeline "1152x864": 75 108000 1152 1216 1344 1600 864 865 868 900 0x40 0x5
<7> [349.610350] [drm:drm_mode_debug_printmodeline] Modeline "1280x720": 60 74250 1280 1390 1430 1650 720 725 730 750 0x40 0x5
<7> [349.610353] [drm:drm_mode_debug_printmodeline] Modeline "1280x720": 60 74250 1280 1390 1430 1650 720 725 730 750 0x40 0x5
<7> [349.610357] [drm:drm_mode_debug_printmodeline] Modeline "1280x720": 60 74176 1280 1390 1430 1650 720 725 730 750 0x40 0x5
<7> [349.610360] [drm:drm_mode_debug_printmodeline] Modeline "1024x768": 75 78750 1024 1040 1136 1312 768 769 772 800 0x40 0x5
<7> [349.610364] [drm:drm_mode_debug_printmodeline] Modeline "1024x768": 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa
<7> [349.610367] [drm:drm_mode_debug_printmodeline] Modeline "1440x480": 60 54054 1440 1472 1596 1716 480 489 495 525 0x40 0xa
<7> [349.610371] [drm:drm_mode_debug_printmodeline] Modeline "1440x480": 60 54000 1440 1472 1596 1716 480 489 495 525 0x40 0xa
<7> [349.610375] [drm:drm_mode_debug_printmodeline] Modeline "1024x576": 60 46560 1024 1064 1160 1296 576 579 584 599 0x0 0x6
<7> [349.610378] [drm:drm_mode_debug_printmodeline] Modeline "832x624": 75 57284 832 864 928 1152 624 625 628 667 0x40 0xa
<7> [349.610382] [drm:drm_mode_debug_printmodeline] Modeline "800x600": 75 49500 800 816 896 1056 600 601 604 625 0x40 0x5
<7> [349.610385] [drm:drm_mode_debug_printmodeline] Modeline "800x600": 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5
<7> [349.610389] [drm:drm_mode_debug_printmodeline] Modeline "640x480": 75 31500 640 656 720 840 480 481 484 500 0x40 0xa
<7> [349.610393] [drm:drm_mode_debug_printmodeline] Modeline "640x480": 60 25200 640 656 752 800 480 490 492 525 0x40 0xa
<7> [349.610396] [drm:drm_mode_debug_printmodeline] Modeline "640x480": 60 25175 640 656 752 800 480 490 492 525 0x40 0xa
<7> [349.610400] [drm:drm_mode_debug_printmodeline] Modeline "640x480": 60 25175 640 656 752 800 480 490 492 525 0x40 0xa
<7> [349.610403] [drm:drm_mode_debug_printmodeline] Modeline "720x400": 70 28320 720 738 846 900 400 412 414 449 0x40 0x6
<7> [349.610449] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:148:DP-1]
<7> [349.610454] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:148:DP-1]
<7> [349.614714] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:148:DP-1] disconnected
<7> [349.614737] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:155:HDMI-A-3]
<7> [349.614741] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:155:HDMI-A-3]
<7> [349.619718] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:155:HDMI-A-3] disconnected
<6> [349.620028] [IGT] kms_plane_cursor: starting subtest viewport
<6> [349.620886] [IGT] kms_plane_cursor: starting dynamic subtest pipe-A-HDMI-A-2-size-64
<7> [349.620994] i915 0000:00:02.0: [drm:drm_mode_addfb2] [FB:162]
<7> [349.623413] i915 0000:00:02.0: [drm:drm_mode_addfb2] [FB:163]
<7> [349.624268] i915 0000:00:02.0: [drm:drm_mode_addfb2] [FB:164]
<7> [349.643750] i915 0000:00:02.0: [drm:i915_fifo_underrun_reset_write [i915]] Re-arming FIFO underruns on pipe A
<7> [349.646298] i915 0000:00:02.0: [drm:i915_fifo_underrun_reset_write [i915]] Re-arming FIFO underruns on pipe A
<7> [349.742215] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:31:plane 1A] ddb ( 0 - 2016) -> ( 0 - 1572), size 2016 -> 1572
<7> [349.742781] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:67:plane 5A] ddb ( 0 - 0) -> (1572 - 2016), size 0 -> 444
<7> [349.743400] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:67:plane 5A] level wm0, wm1, wm2, wm3, wm4, wm5, wm6, wm7, twm, swm, stwm -> *wm0,*wm1,*wm2,*wm3,*wm4,*wm5,*wm6,*wm7,*twm, swm, stwm
<7> [349.744012] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:67:plane 5A] lines 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -> 1, 2, 2, 2, 2, 5, 8, 9, 0, 0, 0
<7> [349.744481] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:67:plane 5A] blocks 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -> 9, 19, 19, 19, 19, 46, 73, 82, 23, 0, 0
<7> [349.744998] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:67:plane 5A] min_ddb 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -> 11, 22, 22, 22, 22, 52, 82, 92, 24, 0, 0
<7> [349.745444] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:76:cursor A] level wm0, wm1, wm2, wm3, wm4, wm5, wm6, wm7, twm, swm, stwm -> *wm0,*wm1,*wm2,*wm3,*wm4,*wm5,*wm6,*wm7,*twm, swm, stwm
<7> [349.745911] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:76:cursor A] lines 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -> 3, 2, 2, 2, 2, 5, 8, 9, 0, 0, 0
<7> [349.746353] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:76:cursor A] blocks 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -> 6, 5, 5, 5, 5, 11, 17, 19, 20, 0, 0
<7> [349.746822] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:76:cursor A] min_ddb 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -> 8, 7, 7, 7, 7, 14, 20, 22, 21, 0, 0
<7> [349.747263] i915 0000:00:02.0: [drm:intel_bw_atomic_check [i915]] [CRTC:80:pipe A] data rate 1119432 num active planes 2
<7> [349.747827] i915 0000:00:02.0: [drm:intel_bw_atomic_check [i915]] QGV point 0: max bw 16761 required 1120
<7> [349.748332] i915 0000:00:02.0: [drm:intel_bw_atomic_check [i915]] No SAGV, using single QGV point 0
<7> [349.748909] i915 0000:00:02.0: [drm:intel_bw_calc_min_cdclk [i915]] new bandwidth min cdclk (21864 kHz) > old min cdclk (10932 kHz)
<7> [349.750679] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:133:DDI B/PHY B]
<7> [349.751194] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:143:DDI TC1/PHY C]
<7> [349.751620] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:147:DDI TC2/PHY D]
<7> [349.752073] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:149:DP-MST A]
<7> [349.752452] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:150:DP-MST B]
<7> [349.796294] i915 0000:00:02.0: [drm:skl_compute_wm [i915]] [PLANE:31:plane 1A] ddb ( 0 - 1572) -> ( 0 - 2016), size 1572 -> 2016