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few kms tests - dmesg-warn/dmesg-fail/timeout - Failed to enable link training

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1652782951?query_key=3b584a120b1e1aa99e83f8c65b11d3092cb64d0a

<7> [532.552030] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.577026] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.602028] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.627028] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.652031] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.677029] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.702029] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.702168] i915 0000:00:02.0: [drm:drm_dp_dpcd_access [drm_display_helper]] AUX USBC2/DDI TC2/PHY TC2: Too many retries, giving up. First error: -110
<3> [532.702261] i915 0000:00:02.0: [drm] *ERROR* [CONNECTOR:272:DP-3][ENCODER:271:DDI TC2/PHY TC2][DPRX] Failed to enable link training
<7> [532.714052] i915 0000:00:02.0: [drm:intel_dp_link_train_phy [i915]] [CONNECTOR:272:DP-3][ENCODER:271:DDI TC2/PHY TC2][DPRX] Link Training failed at link rate = 162000, lane count = 1
<7> [532.714624] i915 0000:00:02.0: [drm:intel_dp_start_link_train [i915]] [CONNECTOR:272:DP-3][ENCODER:271:DDI TC2/PHY TC2][DPRX] Ignore the link failure
<7> [532.740029] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.765027] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.790025] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.815029] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.840029] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.865030] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.890030] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
<7> [532.915029] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY TC2: timeout (status 0x7d0c023f)
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