few tests - dmesg-warn/dmesg-fail/incomplete - Step 2 of creating MST payload for * failed: -5
<7> [231.060667] i915 0000:00:02.0: [drm:drm_dp_dpcd_access [drm_display_helper]] AUX USBC4/DDI TC4/PHY TC4: Too many retries, giving up. First error: -6
<7> [231.060731] i915 0000:00:02.0: [drm:intel_dp_hpd_pulse [i915]] failed to get ESI - device may have failed
<7> [231.086606] i915 0000:00:02.0: [drm:intel_dp_hpd_pulse [i915]] got hpd irq on [ENCODER:267:DDI TC4/PHY TC4] - short
<7> [231.111891] i915 0000:00:02.0: [drm:drm_dp_dpcd_access [drm_display_helper]] AUX USBC4/DDI TC4/PHY TC4: Too many retries, giving up. First error: -6
<7> [231.111961] i915 0000:00:02.0: [drm:intel_dp_hpd_pulse [i915]] failed to get ESI - device may have failed
<7> [231.137404] i915 0000:00:02.0: [drm:drm_dp_mst_wait_tx_reply.isra.0 [drm_display_helper]] timedout msg send ffff88815398c000 2 0
<7> [231.137624] i915 0000:00:02.0: [drm:drm_dp_mst_topology_put_mstb [drm_display_helper]] mstb ffff8881195b3458 (1)
<7> [231.137675] i915 0000:00:02.0: [drm:drm_dp_mst_topology_put_port [drm_display_helper]] port ffff88811be41000 (1)
<3> [231.137715] i915 0000:00:02.0: [drm] *ERROR* Step 2 of creating MST payload for ffff88811be41000 failed: -5
<7> [231.137994] i915 0000:00:02.0: [drm:intel_enable_transcoder [i915]] enabling pipe A
<7> [231.139374] i915 0000:00:02.0: [drm:intel_enable_shared_dpll [i915]] enable TC PLL 4 (active 0x3, on? 1) for [CRTC:131:pipe B]
<7> [231.140217] i915 0000:00:02.0: [drm:intel_mst_pre_enable_dp [i915]] active links 1
<7> [231.140752] i915 0000:00:02.0: [drm:drm_dp_mst_topology_get_port_validated [drm_display_helper]] port ffff888143614000 (2)
<7> [231.167341] i915 0000:00:02.0: [drm:drm_dp_dpcd_access [drm_display_helper]] AUX USBC4/DDI TC4/PHY TC4: Too many retries, giving up. First error: -6
<7> [231.167443] i915 0000:00:02.0: [drm:process_single_tx_qlock [drm_display_helper]] failed to dpcd write 6 -6
<7> [231.167496] i915 0000:00:02.0: [drm:process_single_down_tx_qlock [drm_display_helper]] failed to send msg in q -5