[Bug 86733] [hsw DP] DP 1.1a hot plug monitor discovery takes way too long because piles of dp aux native defers

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86733

Jani Nikula <jani.nikula at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #4 from Jani Nikula <jani.nikula at intel.com> ---
Shot in the dark, please try this patch

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 70bb8d0b9695..768b1bfaea78 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1932,7 +1932,7 @@ void intel_dp_sink_dpms(struct intel_dp *intel_dp, int
mode)

     if (mode != DRM_MODE_DPMS_ON) {
         ret = drm_dp_dpcd_writeb(&intel_dp->aux, DP_SET_POWER,
-                     DP_SET_POWER_D3);
+                     DP_SET_POWER_D0);
     } else {
         /*
          * When turning on, we need to retry for 1ms to give the sink

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