[Bug 111180] linux-5.1.19: i915 when ext HDMI is connected triggers too many interrupts and high load

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111180

--- Comment #11 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
You can try something like:
echo 15 > /sys/kernel/debug/dri/0/i915_hpd_storm_ctl

which should at least turn off the hpd irq for a few seconds after it's
detected 15 spurious hotplug interrupts within one second. Obviously since the
machine is generating these things constantly it'll ping-pong between the two
states, but should at least let it sleep for a few seconds every now and then.

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