[Bug 100885] [SNB] Blank screen after cycling HDMI receiver input

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100885

--- Comment #5 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
Hello Matt,
How are you connecting your PC to the receiver? Could you attach fresh dmesg
with latest kernel version?

>From dmesg last lines:
[  106.035590] [drm:i915_hotplug_work_func [i915]] running encoder hotplug
functions
[  106.035619] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-2 (pin 7)
received hotplug event.
[  106.035644] [drm:intel_hdmi_detect [i915]] [CONNECTOR:42:HDMI-A-2]
[  106.061028] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpd] NAK for addr:
0040 w(1)
[  106.061042] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpd] NAK on first
message, retry
[  106.061204] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpd] NAK for addr:
0040 w(1)
[  106.061213] [drm:drm_rgb_quant_range_selectable [drm]] CEA VCDB 0xfb
[  106.061219] [drm:drm_detect_monitor_audio [drm]] Monitor has basic audio
support
[  106.061233] [drm:i915_hotplug_work_func [i915]] Connector DP-2 (pin 7)
received hotplug event.
[  106.061245] [drm:intel_dp_detect [i915]] [CONNECTOR:44:DP-2]
[  106.063706] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.066162] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.068618] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.071072] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.073525] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.075979] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.078433] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.080886] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.083339] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.085791] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.088247] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.090700] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.093152] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.095605] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.098057] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.100511] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.102969] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.105421] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.107875] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.110328] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.112782] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.115235] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.117687] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.120142] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.122595] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.125046] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.127500] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.129951] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.132406] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.134858] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.137311] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.139765] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7143003f
[  106.139772] [drm:drm_dp_dpcd_access [drm_kms_helper]] Too many retries,
giving up. First error: -110

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