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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [Regression BDW] backlight flickering/display artifacting on Broadwell integrated graphics with 4.12-rc1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101111#c48">Comment # 48</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [Regression BDW] backlight flickering/display artifacting on Broadwell integrated graphics with 4.12-rc1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101111">bug 101111</a>
from <span class="vcard"><a class="email" href="mailto:radhakrishna.sripada@intel.com" title="Radhakrishna Sripada <radhakrishna.sripada@intel.com>"> <span class="fn">Radhakrishna Sripada</span></a>
</span></b>
<pre>Can you try and see if this patch fixes the issue?
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d3e5fdf0d2fa..ef6e32573cab 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5557,6 +5557,11 @@ void intel_edp_drrs_enable(struct intel_dp *intel_dp,
return;
}
+ if (dev_priv->psr.enabled == intel_dp) {
+ DRM_DEBUG_KMS("PSR active. Disabling DRRS.\n");
+ return;
+ }
+
mutex_lock(&dev_priv->drrs.mutex);
if (WARN_ON(dev_priv->drrs.dp)) {
DRM_ERROR("DRRS already enabled\n");</pre>
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