[Bug 91422] [Skylake] it shows disconnected in /sys/class/drm/card0-HDMI-A-1/status after insert HDMI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91422

--- Comment #6 from vivianhu <vivianhu at linpus.com> ---
Hi,in my machine, when i plug hdmi, it will print the following debug message
as in the attached dmesg_hdmi_plug.log:

[  134.378405] [drm:intel_hpd_irq_handler] hotplug event received, stat
0x00200000, dig 0x10101012
[  134.378415] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 4 -
cnt: 0

The above debug information shows hotplug event has been received, but why in
/sys/class/drm/card0-HDMI-A-1/status, the value still shows disconnected?

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