[Bug 101865] [HSW/IVB] Blank screen after resume with HSW
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Oct 26 23:13:37 UTC 2017
https://bugs.freedesktop.org/show_bug.cgi?id=101865
--- Comment #12 from nutrinfnon at gmx.com ---
Created attachment 135095
--> https://bugs.freedesktop.org/attachment.cgi?id=135095&action=edit
test 4.14.0-rc6
Hello,
among the latest S3/S4 patches are:
2017-10-04 drm/i915/cnl: Reprogram DMC firmware after S3/S4 resume
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -2809,6 +2809,9 @@ static void cnl_display_core_init(struct drm_i915_private
*dev_priv, bool resume
/* 6. Enable DBUF */
gen9_dbuf_enable(dev_priv);
+
+ if (resume && dev_priv->csr.dmc_payload)
+ intel_csr_load_program(dev_priv);
}
2017-10-04 drm/i915/cnl: Reprogram DMC firmware after S3/S4 resume
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c
b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 7933d1b..3791c3f 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -2809,6 +2809,9 @@ static void cnl_display_core_init(struct drm_i915_private
*dev_priv, bool resume
/* 6. Enable DBUF */
gen9_dbuf_enable(dev_priv);
+
+ if (resume && dev_priv->csr.dmc_payload)
+ intel_csr_load_program(dev_priv);
}
These patches are already merged in linux-4.14.0-rc6, so I tried it.
My test with 4.14.0-rc6 still shows the presence of the problem, blank screen
after resume.
In attach dmesg output.
Thanks.
--
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20171026/d4caad12/attachment.html>
More information about the intel-gfx-bugs
mailing list