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authorHans de Goede <hdegoede@redhat.com>2016-06-20 21:00:31 +0200
committerHans de Goede <hdegoede@redhat.com>2016-06-20 21:00:31 +0200
commit93f8d223fc495badc84a98bb11d826c0c1b3f9cb (patch)
tree323f7dedf386299199958b6ba328e208067b4011 /0005-i915-fbc-Disable-on-HSW-by-default-for-now.patch
parentb983da8fef8cbe53af0ecb4271910055fa456498 (diff)
downloadkernel-93f8d223fc495badc84a98bb11d826c0c1b3f9cb.tar.gz
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Bring in patch-series from drm-next to fix skl_update_other_pipe_wm issues
(rhbz 1305038) - Cherry pick some other drm / kms fixes from upstream
Diffstat (limited to '0005-i915-fbc-Disable-on-HSW-by-default-for-now.patch')
-rw-r--r--0005-i915-fbc-Disable-on-HSW-by-default-for-now.patch55
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diff --git a/0005-i915-fbc-Disable-on-HSW-by-default-for-now.patch b/0005-i915-fbc-Disable-on-HSW-by-default-for-now.patch
new file mode 100644
index 000000000..d95f2f4d0
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+++ b/0005-i915-fbc-Disable-on-HSW-by-default-for-now.patch
@@ -0,0 +1,55 @@
+From 28d0147bded959b2c4d3eb1aa957452d5dbb0cc9 Mon Sep 17 00:00:00 2001
+From: Fedora Kernel Team <kernel-team@fedoraproject.org>
+Date: Mon, 20 Jun 2016 14:52:10 +0200
+Subject: [PATCH 5/6] i915/fbc: Disable on HSW by default for now
+
+Upstream: posted on dri-devel (and r-b'd)
+
+Author: cpaul@redhat.com <cpaul@redhat.com>
+AuthorDate: Thu Jun 9 11:58:15 2016 -0400
+Commit: Rob Clark <rclark@redhat.com>
+CommitDate: Thu Jun 9 15:43:07 2016 -0400
+
+ i915/fbc: Disable on HSW by default for now
+
+ >From https://bugs.freedesktop.org/show_bug.cgi?id=96461 :
+
+ This was kind of a difficult bug to track down. If you're using a
+ Haswell system running GNOME and you have fbc completely enabled and
+ working, playing videos can result in video artifacts. Steps to
+ reproduce:
+
+ - Run GNOME
+ - Ensure FBC is enabled and active
+ - Download a movie, I used the ogg version of Big Buck Bunny for this
+ - Run `gst-launch-1.0 filesrc location='some_movie.ogg' ! decodebin !
+ glimagesink` in a terminal
+ - Watch for about over a minute, you'll see small horizontal lines go
+ down the screen.
+
+ For the time being, disable FBC for Haswell by default.
+
+ Signed-off-by: Lyude <cpaul@redhat.com>
+ Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
+ Cc: stable@vger.kernel.org
+---
+ drivers/gpu/drm/i915/intel_fbc.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
+index 0f0492f..28f4407 100644
+--- a/drivers/gpu/drm/i915/intel_fbc.c
++++ b/drivers/gpu/drm/i915/intel_fbc.c
+@@ -823,8 +823,7 @@ static bool intel_fbc_can_choose(struct intel_crtc *crtc)
+ {
+ struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+ struct intel_fbc *fbc = &dev_priv->fbc;
+- bool enable_by_default = IS_HASWELL(dev_priv) ||
+- IS_BROADWELL(dev_priv);
++ bool enable_by_default = IS_BROADWELL(dev_priv);
+
+ if (intel_vgpu_active(dev_priv->dev)) {
+ fbc->no_fbc_reason = "VGPU is active";
+--
+2.7.4
+