diff options
| author | Daniel Drake <drake@endlessm.com> | 2019-04-23 11:28:10 +0200 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-05-13 12:45:46 +0200 |
| commit | 396dd8143bdd94bd1c358a228a631c8c895a1126 (patch) | |
| tree | c87789ec701b1cc9fb068b4639853fd1a26262bc | |
| parent | Merge tag 'gvt-next-fixes-2019-05-07' of https://github.com/intel/gvt-linux i... (diff) | |
| download | linux-396dd8143bdd94bd1c358a228a631c8c895a1126.tar.xz linux-396dd8143bdd94bd1c358a228a631c8c895a1126.zip | |
drm/i915/fbc: disable framebuffer compression on GeminiLake
On many (all?) the Gemini Lake systems we work with, there is frequent
momentary graphical corruption at the top of the screen, and it seems
that disabling framebuffer compression can avoid this.
The ticket was reported 6 months ago and has already affected a
multitude of users, without any real progress being made. So, lets
disable framebuffer compression on GeminiLake until a solution is found.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108085
Fixes: fd7d6c5c8f3e ("drm/i915: enable FBC on gen9+ too")
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.11+
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190423092810.28359-1-jian-hong@endlessm.com
(cherry picked from commit 1d25724b41fad7eeb2c3058a5c8190d6ece73e08)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_fbc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index c805a0966395..5679f2fffb7c 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -1280,6 +1280,10 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv) if (!HAS_FBC(dev_priv)) return 0; + /* https://bugs.freedesktop.org/show_bug.cgi?id=108085 */ + if (IS_GEMINILAKE(dev_priv)) + return 0; + if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9) return 1; |