<6> [581.172488] Console: switching to colour dummy device 80x25
<6> [581.172799] [IGT] kms_flip: executing
<7> [581.174532] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:236:DP-1]
<7> [581.174551] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:236:DP-1]
<7> [581.177067] i915 0000:00:02.0: [drm:drm_dp_read_dpcd_caps [drm_display_helper]] AUX B/DDI B/PHY B: Base DPCD: 12 14 c4 81 01 1d 01 81 38 2d 04 00 00 00 84
<7> [581.177077] i915 0000:00:02.0: [drm:drm_dp_read_dpcd_caps [drm_display_helper]] AUX B/DDI B/PHY B: DPCD: 14 1e c4 81 01 1d 01 81 38 2d 04 00 00 00 84
<7> [581.177992] i915 0000:00:02.0: [drm:intel_dp_init_lttpr_and_dprx_caps [i915]] [ENCODER:235:DDI B/PHY B] LTTPR common capabilities: 00 00 00 00 00 00 00 00
<7> [581.180014] i915 0000:00:02.0: [drm:drm_dp_read_dpcd_caps [drm_display_helper]] AUX B/DDI B/PHY B: Base DPCD: 12 14 c4 81 01 1d 01 81 38 2d 04 00 00 00 84
<7> [581.180021] i915 0000:00:02.0: [drm:drm_dp_read_dpcd_caps [drm_display_helper]] AUX B/DDI B/PHY B: DPCD: 14 1e c4 81 01 1d 01 81 38 2d 04 00 00 00 84
<7> [581.181046] i915 0000:00:02.0: [drm:drm_dp_read_desc [drm_display_helper]] AUX B/DDI B/PHY B: DP branch: OUI 00-e0-4c dev-ID Dp1.2 HW-rev 0.0 SW-rev 0.0 quirks 0x0000
<7> [581.182849] i915 0000:00:02.0: [drm:drm_dp_read_downstream_info [drm_display_helper]] AUX B/DDI B/PHY B: DPCD DFP: 0b f0 02 1e
<7> [581.183825] i915 0000:00:02.0: [drm:intel_dp_get_dsc_sink_cap [i915]] DSC DPCD: 01 21 00 02 2b 04 01 00 80 1f 0e 11 08 00 21
<7> [581.184765] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] FEC CAPABILITY: bf
<7> [581.185692] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [ENCODER:235:DDI B/PHY B] MST support: port: yes, sink: no, modparam: yes
<7> [581.185764] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] source rates: 162000, 216000, 270000, 324000, 432000, 540000, 648000, 810000
<7> [581.185830] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] sink rates: 162000, 270000, 540000, 810000
<7> [581.185898] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] common rates: 162000, 270000, 540000, 810000
<7> [581.201009] [drm:update_display_info] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
<7> [581.201020] [drm:update_display_info] HDMI: DVI dual 0, max TMDS clock 300000 kHz
<7> [581.201025] [drm:update_display_info] HF-VSDB: max TMDS clock 600000 kHz
<7> [581.201029] [drm:update_display_info] hdmi_21 sink detected. parsing edid
<7> [581.201059] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] [CONNECTOR:236:DP-1] VRR capable: no
<7> [581.201237] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] [CONNECTOR:236:DP-1] DFP max bpc 12, max dotclock 0, TMDS clock 25000-600000, PCON Max FRL BW 0Gbps
<7> [581.202513] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] PCON ENCODER DSC DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00
<7> [581.202678] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] [CONNECTOR:236:DP-1] RGB->YcbCr conversion? no, YCbCr 4:2:0 allowed? yes, YCbCr 4:4:4->4:2:0 conversion? no
<7> [581.202836] [drm:drm_detect_monitor_audio] Monitor has basic audio support
<7> [581.203832] [drm:update_display_info] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
<7> [581.203840] [drm:update_display_info] HDMI: DVI dual 0, max TMDS clock 300000 kHz
<7> [581.203845] [drm:update_display_info] HF-VSDB: max TMDS clock 600000 kHz
<7> [581.203850] [drm:update_display_info] hdmi_21 sink detected. parsing edid
<7> [581.203875] [drm:update_display_info] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
<7> [581.203880] [drm:update_display_info] HDMI: DVI dual 0, max TMDS clock 300000 kHz
<7> [581.203884] [drm:update_display_info] HF-VSDB: max TMDS clock 600000 kHz
<7> [581.203889] [drm:update_display_info] hdmi_21 sink detected. parsing edid
<7> [581.203893] [drm:drm_add_edid_modes] ELD monitor LG HDR 4K
<7> [581.203899] [drm:drm_add_edid_modes] HDMI: latency present 0 0, video latency 0 1, audio latency 96 2
<7> [581.203904] [drm:drm_add_edid_modes] ELD size 32, SAD count 1
<7> [581.204409] i915 0000:00:02.0: [drm:intel_dp_dsc_get_output_bpp [i915]] Max link bpp: 42
<7> [581.204626] i915 0000:00:02.0: [drm:intel_dp_dsc_get_output_bpp [i915]] Max small joiner bpp: 36