[Bug 106182] [Intel NUC] HDMI1 sometimes stops working after resuming from s3 (a single monitor setup)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106182

--- Comment #13 from Robert Liu <tsunghanliu at gmail.com> ---
On/off the monitor does not recover the display.

when on/off the monitor, dmesg shows:
[  302.208516] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat
0x00000010, dig 0x1000181a, pins 0x00000020
[  302.208621] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN
5 - cnt: 0
[  302.208923] [drm:i915_hotplug_work_func [i915]] running encoder hotplug
functions
[  302.209029] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-1 (pin 5)
received hotplug event.
[  302.209143] [drm:intel_hdmi_detect [i915]] [CONNECTOR:101:HDMI-A-1]
[  302.236583] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  302.236677] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[  302.236939] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  302.236971] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[  302.237024] [drm:drm_detect_monitor_audio [drm]] Monitor has basic audio
support
[  302.610630] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat
0x00000010, dig 0x1000181a, pins 0x00000020
[  302.610736] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN
5 - cnt: 1
[  302.611024] [drm:i915_hotplug_work_func [i915]] running encoder hotplug
functions
[  302.611130] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-1 (pin 5)
received hotplug event.
[  302.611246] [drm:intel_hdmi_detect [i915]] [CONNECTOR:101:HDMI-A-1]
[  302.612275] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[  302.612369] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[  302.627367] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[  302.627452] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[  302.642317] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  302.642413] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[  302.642676] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  302.642708] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[  302.642760] [drm:drm_detect_monitor_audio [drm]] Monitor has basic audio
support
[  310.899258] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat
0x00000010, dig 0x1000181a, pins 0x00000020
[  310.899362] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN
5 - cnt: 0
[  310.899633] [drm:i915_hotplug_work_func [i915]] running encoder hotplug
functions
[  310.899740] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-1 (pin 5)
received hotplug event.
[  310.899852] [drm:intel_hdmi_detect [i915]] [CONNECTOR:101:HDMI-A-1]
[  310.929297] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  310.929392] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[  310.929654] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  310.929686] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[  310.929738] [drm:drm_detect_monitor_audio [drm]] Monitor has basic audio
support
[  311.301426] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat
0x00000010, dig 0x1000181a, pins 0x00000020
[  311.301531] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN
5 - cnt: 1
[  311.301819] [drm:i915_hotplug_work_func [i915]] running encoder hotplug
functions
[  311.301925] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-1 (pin 5)
received hotplug event.
[  311.302071] [drm:intel_hdmi_detect [i915]] [CONNECTOR:101:HDMI-A-1]
[  311.332464] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  311.332561] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[  311.332823] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  311.332854] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[  311.332907] [drm:drm_detect_monitor_audio [drm]] Monitor has basic audio
support

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