[Bug 91436] PSR screen freeze after modesetting

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91436

--- Comment #23 from ivan <ivan.mitev at gmail.com> ---
So - I tried a kernel with the debug patch reverted but kept the part below,
and there's indeed no intermittent freeze. Hope this helps...


diff --git a/drivers/gpu/drm/i915/intel_psr.c
b/drivers/gpu/drm/i915/intel_psr.c
index 8d744c3..9ccf988 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -258,8 +258,8 @@ static void hsw_psr_enable_source(struct intel_dp
*intel_dp)
     if (intel_dp->psr_dpcd[1] & DP_PSR_NO_TRAIN_ON_EXIT) {
         /* It doesn't mean we shouldn't send TPS patters, so let's
            send the minimal TP1 possible and skip TP2. */
-        val |= EDP_PSR_TP1_TIME_100us;
-        val |= EDP_PSR_TP2_TP3_TIME_0us;
+        //        val |= EDP_PSR_TP1_TIME_100us;
+        //val |= EDP_PSR_TP2_TP3_TIME_0us;
         /* Sink should be able to train with the 5 or 6 idle patterns */
         idle_frames += 4;
     }

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