[Bug 105887] [GLK] no signal after switch resolution from 1080p at 23.98

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105887

--- Comment #115 from fatez <stefano.ruzzon at icloud.com> ---
(In reply to Clinton Taylor from comment #113)
> https://patchwork.freedesktop.org/patch/236192/
> 
> V4 of the patch has been submitted upstream. This patch will not apply
> cleanly to the 4.15 kernel. To apply to 4.15 change INTEL_OUTPUT_DDI to
> INTEL_OUTPUT_UNKNOWN

v4 on kernel 4.18-rc3

full log in attachments



[42751.866605] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-1 (pin 5)
received hotplug event.
[42751.866716] [drm:intel_hdmi_detect [i915]] [CONNECTOR:101:HDMI-A-1]
[42751.867000] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[42751.867084] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[42751.867348] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[42751.867402] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpb
[42751.867491] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read failed,
retry using GPIO bit-banging
[42751.867575] [drm:intel_gmbus_force_bit [i915]] enabling bit-banging on i915
gmbus dpb. force bit now 1
[42751.868256] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpb
[42751.868342] [drm:intel_gmbus_force_bit [i915]] disabling bit-banging on i915
gmbus dpb. force bit now 0
[42751.868609] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[42751.868693] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[42751.868947] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[42751.868978] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[42751.869069] [drm:intel_encoder_hotplug [i915]] [CONNECTOR:101:HDMI-A-1]
status updated from connected to disconnected
[42751.872045] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:101:HDMI-A-1]
[42751.872092] [drm:intel_hdmi_detect [i915]] [CONNECTOR:101:HDMI-A-1]
[42751.872280] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[42751.872306] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[42751.872490] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[42751.872511] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpb
[42751.872537] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read failed,
retry using GPIO bit-banging
[42751.872562] [drm:intel_gmbus_force_bit [i915]] enabling bit-banging on i915
gmbus dpb. force bit now 1
[42751.873124] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpb
[42751.873149] [drm:intel_gmbus_force_bit [i915]] disabling bit-banging on i915
gmbus dpb. force bit now 0
[42751.873333] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[42751.873357] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[42751.873539] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[42751.873550] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[42751.873557] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:101:HDMI-A-1] disconnected
[42751.873658] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:107:HDMI-A-2]
[42751.873683] [drm:intel_hdmi_detect [i915]] [CONNECTOR:107:HDMI-A-2]
[42751.873868] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK for addr:
0050 w(1)
[42751.873891] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK on first
message, retry
[42751.874073] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK for addr:
0050 w(1)
[42751.874086] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpc
[42751.874109] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read failed,
retry using GPIO bit-banging
[42751.874134] [drm:intel_gmbus_force_bit [i915]] enabling bit-banging on i915
gmbus dpc. force bit now 1
[42751.874693] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpc
[42751.874717] [drm:intel_gmbus_force_bit [i915]] disabling bit-banging on i915
gmbus dpc. force bit now 0
[42751.874901] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK for addr:
0040 w(1)
[42751.874924] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK on first
message, retry
[42751.875106] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpc] NAK for addr:
0040 w(1)
[42751.875113] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[42751.875120] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:107:HDMI-A-2] disconnected

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